Åkerstedt M, Wredle E, Vo Lam and Johansson M 2012. Protein degradation in bovine milk caused by Streptococcus agalactiae.  Journal of Dairy Research / Volume 79 / Issue 03 / August 2012, pp 297 303 DOI: 10.1017/S0022029912000301,

Binh Phuong L T, Preston T R and Leng R A 2011: Mitigating methane production from ruminants; effect of supplementary sulphate and nitrate on methane production in an in vitro incubation using sugar cane stalk and cassava leaf meal as substrate. Livestock Research for Rural Development. Volume 23, Article #22. Retrieved September 12, 2015, from http://www.lrrd.org/lrrd23/2/phuo23022.htm

Boonchan  Chantaprasarn and Preston T R  2004: Measuring fertility of soils by the bio-test method. Livestock Research for Rural Development. Vol. 16, Art. #78. Retrieved, from http://www.lrrd.org/lrrd16/10/chan16078.htm

Bounhong Norachack, Soukanh Keonouchanh, Chhay Ty,Bounthong Bouahom and Preston T R 2004:  Stylosanthes and cassava leaves as protein supplements to a basal diet of broken rice for local pigs. Livestock Research for Rural Development. Vol. 16, Art. # 74. Retrieved, from http://www.lrrd.org/lrrd16/10/boun16074.htm

Bounthavone Kounnavongsa, Vanthong Phengvichith and T R Preston T R 2010 Effects of fresh or sun-dried cassava foliage on growth performance of goats fed basal diets of Gamba grass or sugar cane stalk . Livestock Research for Rural Development. Volume 22, Article #202 . Retrieved , from http://www.lrrd.org/lrrd22/11/boun22202.htm

Chanphone Keoboualapheth and Choke Mikled 2003: Growth Performance of Indigenous Pigs Fed with Stylosanthes guianensis CIAT 184 as Replacement for Rice bran;  Livestock Research for Rural Development (15) 9 Retrieved, from http://www.lrrd.org/lrrd15/9/chan159.htm

Cheat Sophal, Khieu Borin and Preston T R 2010 Effects of supplements of water hyacinth and cassava hay on the performance of local “Yellow” cattle fed a basal diet of rice straw. Livestock Research for Rural Development. Volume 22, Article #166 . Retrieved , from http://www.lrrd.org/lrrd22/9/soph22166.htm

Chhay T, Borin K and Preston T R 2010: Effect of Taro (Colocasia esculenta) leaf + stem silage and mulberry leaf silage on digestibility and N retention of growing pigs fed a basal diet of rice bran. Livestock Research for Rural Development. Volume 22, Article #109. http://www.lrrd.org/lrrd22/6/chha22109.htm

Chhay T, Borin K, Sopharith N, Preston T R and Aye T M 2010: Effect of sun-dried and fresh cassava leaves on growth of Tilapia (Oreochromis niloticus) fish fed basal diets of rice bran or rice bran mixed with cassava root meal. Livestock Research for Rural Development. Volume 22, Article #43. http://www.lrrd.org/lrrd22/3/chha22043.htm

Chhay T, Phalla M, Borin K and Preston T R 2013: Synergism between biochar and biodigester effluent as soil amenders for biomass production and nutritive value of Mustard green (Brassica juncea). Livestock Research for Rural Development. Volume 25, Article #57.  http://www.lrrd.org/lrrd25/4/chha25057.htm

Chhay T, Pok S, Borin K and Preston T R 2013: Amaranth (Amanathus spp.) as replacement for water spinach (Ipomoea aquatica) with or without paddy rice on growth performance of rabbits. Livestock Research for Rural Development. Volume 25, Article #12. http://www.lrrd.org/lrrd25/1/chha25012.htm

Chhay T, Vor S, Borin K and Preston T R 2013: Effect of different levels of biochar on the yield and nutritive value of Celery cabbage (Brassica chinensis var), Chinese cabbage (Brassica pekinensis), Mustard green (Brassica juncea) and Water spinach (Ipomoea aquatica). Livestock Research for Rural Development. Volume 25, Article #8. http://www.lrrd.org/lrrd25/1/chha25008.htm

Chhay Ty and Preston T R 2005: Effect of water spinach and fresh cassava leaves on intake, digestibility and N retention in growing pigs;   Livestock Research for Rural Development. Vol. 17, Art. #23 Retrieved, from http://www.lrrd.org/lrrd17/2/chha17023.htm

Chhay Ty and Preston T R 2005: Effect of water spinach and fresh cassava leaves on growth performance of pigs fed a basal diet of broken rice. Livestock Research for Rural Development. Volume 17, Article #76. Retrieved , from http://www.lrrd.org/lrrd17/7/chha17076.htm

Chhay Ty and Preston T R 2006  Effect of different ratios of water spinach and fresh cassava leaves on growth of pigs fed basal diets of broken rice or mixture of rice bran and cassava root meal;  Livestock Research for Rural Development. Volume 18, Article # 57. Retrieved, from http://www.lrrd.org/lrrd18/4/chha18057.htm

Chhay Ty,  Preston T R and Ly J  2003:  The use of ensiled cassava leaves in diets for growing pigs. 2. The influence of type of palm oil and cassava leaf maturity on digestibility and N balance for growing pigs.  Livestock Research for Rural Development (15) 8 Retrieved, from http://www.lrrd.org/lrrd15/8/chha158.htm

Chhay Ty, Borin K and Preston T R 2011: Effect of processing cassava leaves and supplementing them with DL-methionine, on intake, growth and feed conversion in crossbred growing pigs . Livestock Research for Rural Development. Volume 23, Article #91. http://www.lrrd.org/lrrd23/4/chha23091.htm

Chhay Ty, Borin Khieu and Preston T R 2009: Effect of wilting cassava leaves and supplementing them with DL-methionine, on intake, growth and feed conversion in growing pigs. Livestock Research for Rural Development. Volume 21, Article #8. http://www.lrrd.org/lrrd21/1/chha21008.htm

Chhay Ty, Preston T R  and  Ly J 2003: The use of ensiled cassava leaves in diets for growing pigs. 1.The effect of graded levels of palm oil on N digestibility and N balance;  Livestock Research for Rural Development (15) 7 Retrieved, from http://www.lrrd.org/lrrd15/7/chha157.htm

Chhayty,  Preston T R,   Ly J and Keo Sath 2003 The use of ensiled cassava leaves in diets for growing pigs. 3. The effect of graded levels of palm oil on performance traits. Livestock Research for Rural Development (15) 9 Retrieved, from http://www.lrrd.org/lrrd15/9/chha159.htm

Chin N H and Hue K T 2012: Supplementing Tithonia diversifolia with Guinea grass or tree foliages: effects on feed intake and live weight gain of growing goats. Livestock Research for Rural Development. Volume 24, Article #188. http://www.lrrd.org/lrrd24/10/chin24188.htm

Chittavong M, Jansson A and Lindberg J E 2012. Effects of high dietary sodium chloride content on performance and sodium and potassium balance in growing pigs. Tropical Animal Health and Production (Revision).

Chittavong Malavanh and Preston T R  2006 Intake and digestibility by pigs fed different level of sweet potato leaves and water spinach as supplement to mixture of rice bran and cassava root meal;  Livestock Research for Rural Development. Volume 18, Article # 86. Retrieved, from http://www.lrrd.org/lrrd18/6/mala18086.htm

Chittavong Malavanh, Preston T R and Ogle B 2008: Effect of replacing soybean meal by a mixture of taro leaf silage and water spinach on reproduction and piglet performance in Mong Cai gilts. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/mala2.htm

Chittavong Malavanh, Preston T R and Ogle B 2008: Effect of replacing soybean meal with a mixture of Taro (Colocasia esculenta (L.)Schott) leaf silage and water spinach on apparent digestibility in Mong Cai gilts at two stages of gestation. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/mala3.htm

Chittavong Malavanh, Preston T R and Ogle B 2008: Ensiling leaves of Taro (Colocasia esculenta (L.) Shott) with sugar cane molasses. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/mala1.htm

Chittavong, M., Lindberg, J. E. and Jansson, A., 2012. Feeding regime and management of local pigs in central Lao PDR. Tropical Animal Health and Production 39, 115-127.

Chittavong, M., Lindberg, J. E. and Jansson, A., 2013. A field study on feed supplementation, body weight and selected blood parameters in local pigs in Laos. Tropical Animal Health and Production 45, 505-510.

Chiv Phiny and Lampheuy Kaensombath 2006: Effect on feed intake and growth of depriving rabbits access to soft faeces.  Livestock Research for Rural Development. Volume 18, Article # 34. Retrieved, from http://www.lrrd.org/lrrd18/3/phin18034.htm

Chiv Phiny, Borin K, Preston T R and Ty C 2009: Effect of level of effluent from biodigesters loaded with pig manure on the growth of mulberry (Morus alba) trees. Livestock Research for Rural Development. Volume 21, Article #114. http://www.lrrd.org/lrrd21/7/phin21114.htm

Chiv Phiny, Ogle B, Preston T R and Borin K 2008: Digestibility and N-retention in crossbred pigs of diets with water spinach or water spinach mixed with mulberry leaves as protein sources in basal diets of cassava root meal plus rice bran, or sugar palm syrup plus broken rice. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/phin1.htm

Chiv Phiny, Ogle B, Preston T R and Borin K 2008: Growth performance of pigs fed water spinach or water spinach mixed with mulberry leaves, as protein sources in basal diets of cassava root meal plus rice bran or sugar palm syrup plus broken rice. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/phin2.htm

Chiv Phiny, Preston T R and Ly J 2003 Mulberry (Morus alba) leaves as protein source for young pigs fed rice based diets: Digestibility studies.; Livestock Research for Rural Development (15) 1. Retrieved, from http://www.lrrd.org/lrrd15/1/phin151.htm

Da, C. T., Lundh, T. and Lindberg, J. E., 2012. Digestibility of dietary components and amino acids in plant protein feed ingredients in striped catfish (Pangasianodon hypophthalmus) fingerlings. Aquaculture Nutrition (Accepted).

Da, C.T., Lundh, T. and Lindberg, J.E. 2012. Evaluation of local feed resources as alternatives to fish meal in terms of growth performance, feed utilisation and biological indices of striped catfish (Pangasianodon hypophthalmus) fingerlings. Aquaculture 364–365, 150–156.

Dao T T, Canh N T, Trach N X and Preston T R 2013: Effect of different sources of biochar on growth of maize in sandy and feralite soils. Livestock Research for Rural Development. Volume 25, Article #59. http://www.lrrd.org/lrrd25/4/dao25059.htm

Daovy Kongmanila, Bertilsson J,  Ledin I and Ewa Wredle E  2012 Effect of feeding different levels of foliage from Erythrina variegata on the performance of growing goats. Trop Anim Health Prod (2012) 44:1659–1665. DOI 10.1007/s11250-012-0121-5

Do Thi Thanh Van, Nguyen Thi Mui, Inger Ledin. 2004. Effect of method of presentation of different foliages given separately or in mixtures on intake and behaviour of goats. Animal Feed Science and Technology (In Press).

Do Thi Thanh Van,  Ledin  I and Nguyen Thi Mui 2002  Feed intake and behavior of small ruminants fed whole sugar cane as a sole roughage with or without concentrate. Animal Feed Science and Technology 100:1-2,79-91.

Do Viet Minh, Jan Erik Lindberg and Brian Ogle 2004  Effect of Scavenging and Protein Supplement on the Feed Intake and Performance of Improved Pullets and Laying hens in Northern Vietnam. Asian-Australasian Journal of Animal Sciences, 17 (11), 1553-1561.

Do Viet Minh, Le Viet Ly and B. Ogle. 2004. Effects of energy and protein supplementation on the production and economic efficiency of scavenging improved (TamHoang) and local (Ri) breed hens under smallholder conditions in North Vietnam. Tropical Animal Health and Production, 36 (2004), 703-714.

Dong N T K and Ogle R B 2003 Effect of brewery waste replacement of concentrate on the performance of local and crossbred growing Muscovy ducks. Asian-Australasian Journal of Animal Sciences. 16 (10): 1510-1517.

Dong N T K and Ogle R B 2004. An evaluation of brewery waste as a replacement for concentrates in diets for growing crossbred common ducks. Tropical Animal Health and Production. 36 (7): 715-729.

Dong N T K,  Elwinger K, Lindberg J E  and Ogle R B 2005. Effects of replacing soybean meal with soya waste and fish meal with ensiled shrimp waste on the performance of growing crossbred ducks. Asian-Australasian Journal of Animal Sciences. 18 (6) 825-834

Du Thanh Hang , Linh Nguyen Quang, Preston T R , Everts H and Beynen A C 2009: Effect of supplementary DL-methionine in pig diets with cassava leaves as a major protein source. Livestock Research for Rural Development. Volume 21, Article #15. http://www.lrrd.org/lrrd21/1/hang21015.htm

Du Thanh Hang and Preston T R 2005 The effects of simple processing methods of cassava leaves on HCN content and intake by growing pigs.  Livestock Research for Rural Development. Volume 17, Article # 109. Retrieved, from http://www.lrrd.org/lrrd17/09/hang17099.htm

Du Thanh Hang, Linh Nguyen Quang, Everts H and Beynen A C 2009: Ileal and total tract digestibility in growing pigs fed cassava root meal and rice bran with inclusion of cassava leaves, sweed potato vine, duckweed and stylosanthes foliage. Livestock Research for Rural Development. Volume 21, Article #12. http://www.lrrd.org/lrrd21/1/hang21012.htm

Du Thanh Hang,  Vanhanen L and Savage G  2013 Effect of simple processing methods on oxalate content of taro petioles and leaves grown in central Viet Nam. LWT – Food Science and Technology 50 (2013) 259e263

Dung N T, Binh D V, Mui N T and Preston T R 2010: Effect of cassava hay supplementation on milk production in lactating goats. Livestock Research for Rural Development. Volume 22, Article #45. http://www.lrrd.org/lrrd22/3/dung22045.htm

Duong Nguyen Khang and Wiktorsson H 2004 Effects of fresh cassava tops on rumen environment parameters, thyroid gland hormones and liver enzymes of local yellow cattle fed urea-treated fresh rice straw. Tropical Animal Health and Production, Volume 36, No. 8, pp. 751-762

Duong Nguyen Khang and Wiktorsson  H 2000  Effects of cassava leaf meal on the rumen environment of local yellow cattle fed urea-treated paddy straw. Asian-Aus. J. Anim. Sci. 13: 1102-1108

Duong Nguyen Khang and Wiktorsson  H 2004  Effects of ensiled cassava tops on rumen environment parameters, thyropid gland hormones and liver enzymes of cows fed urea-treated fresh rice straw. Asian-Aus. J. Anim. Sci. 17: 936-941

Duyet H N 2010: Giant taro leaves (Alocasia macrorrhiza) for replacement of soybean meal in diets for Mong Cai sows in Central Vietnam. Livestock Research for Rural Development. Volume 22, Article #149. http://www.lrrd.org/lrrd22/8/duye22149.htm

Duyet H N and Preston T R 2013: Ensiled mixed foliage of taro leaves + petioles and banana pseudo-stems as replacement of rice bran for Mong Cai sows in small-holder farms in Vietnam. Livestock Research for Rural Development. Volume 25, Article #54. http://www.lrrd.org/lrrd25/4/duye25054.htm

Duyet H N, Thuan T T and Son N D 2010: Effects on sow reproduction and piglet performance of replacing soybean meal by a mixture of sweet potato leaves, water spinach and fresh cassava foliage in the diets of Mong Cai and Yorkshire sows. Livestock Research for Rural Development. Volume 22, Article #59. http://www.lrrd.org/lrrd22/3/duye22059.htm

Giang N T and Preston T R 2011: Taro (Colocacia esculenta) silage and water spinach as supplements to rice bran for growing pigs. Livestock Research for Rural Development. Volume 23, Article #45. http://www.lrrd.org/lrrd23/3/gian23045.htm

Ha M T, Sac N H, Que L B, Hai P T, Tuan H M, Tiem P V, Hoa N T T, Kiem P V and Thong L V 2012: Relationship between scrotal circumference with some indicators of semen parameters in Holstein Friesian and Brahman breeding bulls. Livestock Research for Rural Development. Volume 24, Article #112. http://www.lrrd.org/lrrd24/7/ha24112.htm

Hai T T, Ly N T H and Preston T R 2013: Effect of replacing fish meal by a mixture of ensiled taro (Colocasia esculenta) foliage and ensiled sweet potato vines (Ipomoea batatas L.) on reproduction and piglet performance in VanPa sows in central Vietnam. Livestock Research for Rural Development. Volume 25, Article #39. http://www.lrrd.org/lrrd25/3/hoal25039.htm

Hang B P T, Lam V and Preston T R 2012: Effect on growth of goats and enteric methane emissions of supplementing foliage of Melia azedarach with foliage of Mimosa pigra. Livestock Research for Rural Development. Volume 24, Article #227. http://www.lrrd.org/lrrd24/12/hang24227.htm

Hang B P T, Lam V and Preston T R 2012: Effects on the performance of growing goats by supplementing ensiled water hyacinth leaves with Melia azedarach foliage. Livestock Research for Rural Development. Volume 24, Article #226. http://www.lrrd.org/lrrd24/12/hang24226.htm

Hang B P T, Lam V and Preston T R 2013: Effect of paddy rice on growth performance of rabbits fed water spinach as the sole forage or combined with leaves of water hyacinth. Livestock Research for Rural Development. Volume 25, Article #45. http://www.lrrd.org/lrrd25/3/hang25045.htm

Hang D T and Binh L V 2013: Oxalate concentration in taro leaves and petioles and effect of added calcium on nitrogen and calcium retention in pigs given diets containing 50% ensiled taro leaves and petioles. Livestock Research for Rural Development. Volume 25, Article #65.  http://www.lrrd.org/lrrd25/4/hang25065.htm

Hang D T and Kien N T 2012: Taro (Alocasia odora (C) Koch, Xanthosoma nigra (vell) Stellfeld and Colocasia esculenta (L) schott) in Central Vietnam: biomass yield, digestibility and nutritive value. Livestock Research for Rural Development. Volume 24, Article #222. http://www.lrrd.org/lrrd24/12/hang24222.htm

Hang D T and Preston T R 2010: Effect of processing Taro leaves on oxalate concentrations and using the ensiled leaves as a protein source in pig diets in central Vietnam. Livestock Research for Rural Development. Volume 22, Article #68. http://www.lrrd.org/lrrd22/4/hang22068.htm

Hang D T, Binh L V, Preston T R and Savage G P 2011: Oxalate content of different taro cultivars grown in central Viet Nam and the effect of simple processing methods on the oxalate concentration of the processed forages. Livestock Research for Rural Development. Volume 23, Article #122.  http://www.lrrd.org/lrrd23/6/hang23122.htm

Hang V T T, Tu N K and Tuy C D 2012: The effect of Eupatorium odoratum foliage compared with cassava foliage on growth and intestinal nematode infestation in goats. Livestock Research for Rural Development. Volume 24, Article #136. http://www.lrrd.org/lrrd24/8/hang24136.htm

Hang V T T, Tuy C D, Anh N N and Preston T R 2012: Leaf extract from Tithonia diversifolia cures Scabies in rabbits. Livestock Research for Rural Development. Volume 24, Article #221. http://www.lrrd.org/lrrd24/12/hang24221.htm

Ho Bunyeth and Preston T R 2004: Biodigester effluent as fertilizer for water spinach established from seed or from cuttings;  Livestock Research for Rural Development. Vol. 16, Art. #79. Retrieved, from http://www.lrrd.org/lrrd16/10/buny16079.htm

Ho Bunyeth and Preston T R 2006 Growth performance and parasite infestation of goats given cassava leaf silage, or sun-dried cassava leaves, as supplement to grazing in lowland and upland regions of Cambodia. Livestock Research for Rural Development. Volume 18, Article # 28. Retrieved, from http://www.lrrd.org/lrrd18/02/buny18028.htm

Ho Thanh Tham, Man N V and Preston T R 2008: Estimates of protein fractions of various heat-treated feeds in ruminant production. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/tham2.htm

Ho Thanh Tham, Man N V and Preston T R 2008: Performance of young cattle fed rice straw sprayed with mixture of urea and molasses supplemented with different levels of cassava leaf meal. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/tham1.htm

Ho Than Tham, Ngo Van man and Thomas Pauly, 2013, Fermentation Quality of Ensiled Water Hyacinth (Eichhornia crassipes) as Affected by Additives. . Asian-Aust. J. Anim.Sci 26 (2), 195-201.
Ho Than Tham and Peter Udén, 2013. Effect of Water Hyacinth (Eichhornia Crassipes) Silage on Intake and Nutrient Digestibility in Cattle Fed Rice Straw and Cottonseed Cake, Asian-Aust. J. Anim.Sci, 26 (5), 646-653

Hoang Huong Giang, Le Viet Ly and Ogle B 2004:  Evaluation of ensiling methods to preserve sweet potato roots and vines as pig feed. Livestock Research for Rural Development. Vol. 16, Art. #45. Retrieved, from http://www.lrrd.org/lrrd16/7/gian16045htm

Hoang Huong Giang, Le Viet Ly and  Ogle B 2004: Digestibility of dried and ensiled sweet potato roots and vines and their effect on the performance and economic efficiency of F1 crossbred fattening pigs. Livestock Research for Rural Development. Vol. 16, Art. #50. Retrieved, from http://www.lrrd.org/lrrd16/7/gian16050.htm

Hoang Huong Giang, Tran Quoc Viet, Brian Ogleand Jan Erik Lindberg, 2012. Growth performance, digestibility, gut environment and health status in weaned piglets fed a diet supplemented with a potentially probiotic complex of lactic acid bacteria alone or in combination with Bacillus subtilis and Saccharomyces boulardii. Livestock Science 143, 132-141.

Hong N T T and Preston T R 2013: Effect of biodigester effluent on the biomass production of Tithonia diversifolia and the use of the foliage as the basal diet for goats. Livestock Research for Rural Development. Volume 25, Article #6. http://www.lrrd.org/lrrd25/1/hong25006.htm

Hongthong Phimmmasan,  Siton Kongvongxay, Chhay Ty and Preston T R 2004: Water spinach (Ipomoea aquatica) and Stylo 184 (Stylosanthes guianensis CIAT 184) as basal diets for growing rabbits.  Livestock Research for Rural Development. Vol. 16, Art. #34. Retrieved, from http://www.lrrd.org/lrrd16/5/hong16034.htm

Hue K T,  Van Do Thi Thanh, Spörndly E, Ledin I and Wredle E 2012.  Effect of adaptation strategies when feeding fresh cassava foliage on intake and physiological responses of lambs. Trop Anim Health Prod (2012) 44:267–276. DOI 10.1007/s11250-011-0013-0

Hue K T, Van D T T, Ledin I., Wredle E. and Spörndly E 2012. Effect of harvesting frequency, variety and leaf maturity on nutrient composition, hydrogen cyanide content and cassava foliage yield. Asian-Aust. J. Anim.Sci. 25 (12), 1691-1700

Huyen N T D, Trach N X and Preston T R 2013: Effects of supplementation of paddy rice and/or rice grain and/or rice husk to sweet potato (Ipomoea batatas) vines as basal diet on growth performance and diet digestibility in rabbits. Livestock Research for Rural Development. Volume 25, Article #19. http://www.lrrd.org/lrrd25/1/huye25019.htm

Inthapanya S, Preston T R and Leng R A 2012: Biochar increases biogas production in a batch digester charged with cattle manure. Livestock Research for Rural Development. Volume 24, Article #212. http://www.lrrd.org/lrrd24/12/sang24212.htm

Kaensombath L and Lindberg J E 2013: Effect of additives on ensiling of taro (Colocasia esculenta (L.) Schott) leaves and Stylo CIAT 184 (Stylosanthes guianensis (Aubl.) Sw. var. guianensis) forage. Livestock Research for Rural Development. Volume 25, Article #69.  http://www.lrrd.org/lrrd25/4/lamp25069.htm

Kaensombath Lampheuy, San Thy and Preston T R  2004: Manure or biodigester effluent as fertilizer for duckweed.  Livestock Research for Rural Development,  Vol. 16, Art. #17,  Retrieved, from http://www.lrrd.org/lrrd16/3/lamp1603.htm

Kaensonbath, L. and Lindberg, J. E., 2012. Effect of replacing soybean protein by taro leaf (Colocasia esculenta, L. Schott) protein on growth performance of exotic (Landrace x Yorkshire) and native (Moo Lath) Lao pigs. Tropical Animal Health and Production (doi: 10.1007/s11250-012-0172-7).

Kaensonbath, L., Neil, M. and Lindberg, J. E., 2012. Effect of replacing soybean protein by Sylo CIAT 184 (Stylosanthes guianensis (Aubl.) Sw. var. guianensis) protein on growth performance, carcass traits and organ weights of exotic (Landrace x Yorkshire) and native (Mou Lath) Lao pigs. Tropical Animal Health and Production (doi: 10.1007/s11250-012-0299-6).

Kanpukdee Suchitra and Wanapat M 2008: Effects of mangosteen (Garcinia mangostana) peel and sunflower and coconut oil supplementation on rumen fermentation, milk yield and milk composition in lactating dairy cows. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/such2.htm

Kanpukdee Suchitra and Wanapat M 2008: Study on ruminal degradability of local plants by using nylon bag technique. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/such1.htm

Keo Sath, Borin K and Preston T R 2008: Effect of levels of sun-dried cassava foliage on growth performance of cattle fed rice straw. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/sath2.htm

Keo Sath, Borin K and Preston T R 2008: Survey on feed utilization for cattle production in Takeo province. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/sath1.htm

Khieu Borin and Frankow-Lindberg B E 2004. Effects of legumes-cassava intercropping for foliage and biomass production. Journal of Sustainable Agriculture (In Press)

Khieu Borin, Lindberg, J.E. and Ogle, R.B. 2005. Effect of variety and preservation method of cassava leaves on diet digestibility by indigenous and improved pigs. Animal Science 2005, 80: 319-324.

Khuc Thi Hue,  Do Thi Thanh Van,  Inger Ledin, Eva Spörndly and Ewa Wredle  2010  Effect of feeding fresh, wilted and sun-dried foliage from cassava (Manihot esculenta Crantz) on the performance of lambs and their intake of hydrogen cyanide. Livestock Science 131 (2010) 155–161

Khuc Thi Hue, Do Thi Thanh Van, Ledin I 2008 Effect of supplementing urea treated rice straw and molasses with different forage species on the performance of lambs. Small Ruminant Research 78 (2008) 134–143

KhucThi Hue and Preston T R 2006: Effect of different sources of supplementary fibre on growth of rabbits fed a basal diet of fresh water spinach.  Livestock Research for Rural Development. Volume 18, Article # 36. Retrieved, from http://www.lrrd.org/lrrd18/03/hue18036.htm

Kiyothong K and Wanapat  M 2004  Supplementation of Cassava Hay and Stylo 184 Hay to Replace Concentrate for Lactating Dairy Cows. Asian-Australasian Journal of Animal Science 17: 670-677

Kiyothong K and Wanapat M 2003:  Cassava hay and Stylo 184 hay to replace concentrates in diets for lactating dairy cows;  Livestock Research for Rural Development (15) 11 Retrieved, from http://www.lrrd.org/lrrd15/11/krai1511.htm

Kiyothong   K and Wanapat M 2004. Growth, Hay Yield and Chemical Composition of Cassava and Stylo 184 Grown under Intercropping. Asian-Australasian journal of Animal Science. 17: 799 -807

Kongmanila D, Bertilsson J, Ledin I and Wredle E 2012: Utilisation of some Erythrina species and biomass production of Erythrina variegata. Livestock Research for Rural Development. Volume 24, Article #137. Retrieved , from http://www.lrrd.org/lrrd24/8/daov24137.htm

Kongmanila Daovy and LedinI 2009 Chemical composition of some tropical foliage species and their intake and digestibility by goats. Asian-Australasian Journal of Animal Science. 22 (6) 803-811

Kongmanila Daovy, Preston T R and Ledin I 2008: Selective behaviour of goats offered different tropical foliages. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/daov2.htm

Kongmanila Daovy, Preston T R and Ledin I 2008: Survey on the utilization of local foliage species for goats in Xaythanee district, Vientiane City. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/daov1.htm

Lam, V., Wredle, E., Thao, N.T., Man, N.V., Svennersten-Sjaunja, K. 2010 Smallholder dairy production in Southern Vietnam: Production, management and milk quality problems. African Journal of Agricultural Research 5 (19), 2668-2675.
 
Lam, V., Östensson, K., Svennersten-Sjaunja, K., Norell, L. & Wredle, E. 2011. Management factors influencing milk somatic cell count and udder infection rate in smallholder dairy cows in Southern Vietnam. Journal of Animal and Veterinary Advances. 10 (7), 847-852.

Lan T T, Nhi N H Y and Khoa L T M 2012: Utilization of biodigester effluent for production of Chlorella. Livestock Research for Rural Development. Volume 24, Article #151. http://www.lrrd.org/lrrd24/8/lan24151.htm

Luyen P T, Khang D N and Preston T R 2012: Effects of biochar from gasifier stove and effluent from biodigester on growth of maize in acid and fertile soils. Livestock Research for Rural Development. Volume 24, Article #75. http://www.lrrd.org/lrrd24/5/luye24075.htm

Le Ding Phung 2009: Genotype by environment interaction: a case study of productive and reproductive performance of Yellow local and F1 (Red Sindhi x Yellow local) cattle in two production zones in Quang Ngai Vietnam. Livestock Research for Rural Development. Volume 21, Article #17. http://www.lrrd.org/lrrd21/2/phun21017.htm

Le Van An and Lindberg J E 2004  Ensiling of Sweet Potato Leaves (Ipomoea batatas (L.) Lam) and the Nutritive Value of Sweet Potato Leaf Silage for Growing Pigs. Asian-Aust. J. Anim. Sci. 2004, Vol 17, No. 4: 497-503

Le Van An, Hong T T  and Lindberg, J. E. 2004. Ileal and Total Tract Digestibility in growing pigs fed cassava root meal diets with inclusion of fresh, dry and ensiled sweet potato leaves. Animal Feed Science and Technology, 114, 127-139.

Le Van An, Hong, T.T.T., Ogle, B. and Lindberg, J.E. 2005. Utilisation of ensiled sweet potato leaves as a protein supplement in diets for growing pigs. Tropical Animal Health and Production. Volume 37, Number 1

Le Van An, Lindberg B E F and Lindberg J E  2003  Effect of harvesting interval and defoliation on yield and chemical composition of leaves, stems and tubers of sweet potato (Ipomoea batatas L. (Lam.)) plant parts. Field Crops Research. 82: 49-58.

Leng R A, Inthapanya S and Preston T R 2012: Biochar lowers net methane production from rumen fluid in vitro. Livestock Research for Rural Development. Volume 24, Article #103. http://www.lrrd.org/lrrd24/6/sang24103.htm

Leng R A, Inthapanya S and Preston T R 2012: Methane production is reduced in an in vitro incubation when the rumen fluid is taken from cattle that previously received biochar in their diet. Livestock Research for Rural Development. Volume 24, Article #211. http://www.lrrd.org/lrrd24/11/sang24211.htm

Leng R A, Preston T R and Inthapanya S 2012: Biochar reduces enteric methane and improves growth and feed conversion in local “Yellow” cattle fed cassava root chips and fresh cassava foliage. Livestock Research for Rural Development. Volume 24, Article #199. http://www.lrrd.org/lrrd24/11/leng24199.htm

Luu Huu Manh, Nguyen Nhut Xuan Dung and Tran Phung Ngoi 2005: Introduction and evaluation of Moringa oleifera for biomass production and as feed for goats in the Mekong Delta. Livestock Research for Rural Development. Volume 17, Article # 104. Retrieved, from http://www.lrrd.org/lrrd17/09/manh17104.htm

Luyen L T and Preston T R 2012:
Growth performance of New Zealand White rabbits fed sweet potato (Ipomoea batatas) vines supplemented with paddy rice or Guinea grass supplemented with commercial concentrate. Livestock Research for Rural Development. Volume 24, Article #127.  http://www.lrrd.org/lrrd24/7/luye24127.htm

Luyen P T, Khang D N and Preston T R 2012: Effects of biochar from gasifier stove and effluent from biodigester on growth of maize in acid and fertile soils. Livestock Research for Rural Development. Volume 24, Article #75. http://www.lrrd.org/lrrd24/5/luye24075.htm

Ly Thi Luyen and Preston T R  2004: Effect of level of urea fertilizer on biomass production of water spinach (Ipomoea aquatica) grown in soil and in water.  Livestock Research for Rural Development. Vol. 16, Art. #81. Retrieved, from http://www.lrrd.org/lrrd16/10/luye16081.htm

Mai Van Sanh 2009: Effects of supplementation with cassava leaf meal before and after calving on birth weight, growth rate of calves and body weight change of buffalo cows in smallholder farms. Livestock Research for Rural Development. Volume 21, Article #98. http://www.lrrd.org/lrrd21/7/sanh21098.htm

Manh L H, Dung N N X, Minh B T L and Duong M T 2012: Treating pig wastewater by applying a model of fish pond or biodigester tank followed by a fish pond in Phuoc Tho state farm. Livestock Research for Rural Development. Volume 24, Article #29. http://www.lrrd.org/lrrd24/2/manh24029.htm

Manh L H, Xuan Dung N N, Kinh L V, Binh T C, Thu Hang B P and Phuoc T V 2009: Composition and nutritive value of rice distillers’ by-product (hem) for small-holder pig production. Livestock Researchfor Rural Development. Volume 21, Article #224. http://www.lrrd.org/lrrd21/12/manh21224.htm

Manivanh N, Ngoan L D and Preston T R 2012: Apparent digestibility and N retention in growing pigs fed rice bran supplemented with different proportions of ensiled Taro foliage (Colocacia esculenta) and rice distillers’ by-product. Livestock Research for Rural Development. Volume 24, Article #67. http://www.lrrd.org/lrrd24/4/noup24067.htm

Men L T, Ogle B, Son V V and Preston T R 2010: Evaluation of water spinach (Ipomoea aquatica) as a protein source for Ba Xuyen and Large White sows. Livestock Research for Rural Development. Volume 22, Article #70. http://www.lrrd.org/lrrd22/4/leme22070.htm

Mesfin, R. and Ledin, I. 2004, Assessment of the treatment and use of urea treated straw for cattle feeding in Selale, Central Ethiopia. Ethiopian Journal of Animal Science 4:1, 23-32. (financed by SAREC International MSc Programme)

Minh, D.V. & Ogle, B. 2005. Effects of Scavenging and Supplementation of Lysine and Methionine on the Feed Intake, Performance and Carcase Quality of Improved Dual-Purpose Growing Chickens. Tropical Animal Health and Production. 37 (2005) 1- 15.

Minh, D.V., Lindberg, J.E. & Ogle, B. 2004. Effects of Scavenging and Protein Supplement on the Feed Intake and Performance of Improved Pullets and Laying Hens in Northern Vietnam. Asian-Australasian Journal of Animal Sciences. 17 (11), 1553-1561.

Minh, D.V., Ly, L. V. & Ogle, B. 2004. Effects of Energy and Protein Supplementation on the Production and Economic Efficiency of Scavenging Improved (Tamhoang) and Local (Ri) Breed Hens under Smallholder Conditions in Northern Vietnam. Tropical Animal Health and Production. 36 (7) 703- 714.

Nakkitset S, Mikled C and Ledin I 2008: Evaluation of head lettuce residue and Mimosa pigra as foliages for rabbits compared to Ruzi grass: Effect on growth performance and production costs on-farm. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/nakk1.htm

Ngamsaeng A,  Wanapat M and Khampa S 2006 Effects of Mangosteen Peel (Garcinia mangostana) Supplementation on Rumen Ecology, Microbial Protein Synthesis, Digestibility and Voluntary Feed Intake in Cattle. Pakistan Journal of Nutrition 5 (5): 445-452.

Ngamsaeng Amornsak, San Thy and Preston T R 2004: Duckweed (Lemna minor) and water spinach (Ipomoea aquatica) as protein supplements for ducks fed broken rice as the basal diet.  Livestock Research for Rural Development,  Vol. 16, Art. #16,  Retrieved, from http://www.lrrd.org/lrrd16/3/amor1603.htm

Ngamsaeng, A, Wanapat  M and Khampa S  2006. Evaluation of Local Tropical Plants by In vitro Rumen Fermentation and Their Effects on Fermentation End-Products. Pakistan Journal of Nutrition 5 (5): 414-418.

Ngo Tien Dung, Ledin Inger and Nguyen Thi Mui 2005: Intercropping cassava (Manihot esculenta Crantz) with Flemingia (Flemingia macrophylla); effect on biomass yield and soil fertility.  Livestock Research for Rural Development. Vol. 17, Art. #6 Retrieved, from http://www.lrrd.org/lrrd17/1/dzun17006.htm

Ngo Tien Dung, Nguyen Thi Muiand Inger Ledin. 2004. Effect of replacing a commercial concentrate with cassava hay (Manihot esculenta Crantz) on the performance of growing goats. Animal Feed Science and Technology (In Press).

Ngo Tien Dzung and Preston T R 2007: Effect of increasing area of cassava (Manihot esculenta Crantz) relative to Flemingia (Flemingia macrophylla) on biomass yield, soil fertility and soil erosion. Livestock Research for Rural Development. Volume 19, Article #22. Retrieved , from http://www.lrrd.org/lrrd19/2/dzun19022.htm

Ngoc Huyen L T, Do H Q, Preston T R and Leng R A 2010: Nitrate as fermentable nitrogen supplement to reduce rumen methane production. Livestock Research for Rural Development. Volume 22, Article #146. http://www.lrrd.org/lrrd22/8/huye22146.htm

Ngoc, T. T. B., Len, N. T. and Lindberg, J. E., 2012. Effect of fibre level and fibre source on gut morphology and micro-environment in local (Mong Cai) and exotic (Landrace x Yorkshire) pigs. Asian-Australasian Journal of Animal Science 25 (12), 1726-1733.

Nguyen Duy Quynh Tram and Preston T R 2004: Effect of method of processing cassava leaves on intake, digestibility and N retention by Ba Xuyen piglets.  Livestock Research for Rural Development. Vol. 16, Art. # 80. Retrieved, from http://www.lrrd.org/lrrd16/10/tram16080.htm

Nguyen Nhut Xuan Dung, Luu Huu Manh and Brian Ogle 2005: Effects of fermented liquid feeds on the performance, digestibility, nitrogen retention and plasma urea nitrogen (PUN) of growing-finishing pigs.  Livestock Research for Rural Development. Volume 17, Article # 102. Retrieved, from http://www.lrrd.org/lrrd17/9/xdun17102.htm

Nguyen Thi Hong Nhan, Hon N V and Preston T R 2009: Ensiling with or without additives to preserve pineapple residue and reduce pollution of the environment. Livestock Research for Rural Development. Volume 21, Article #96. http://www.lrrd.org/lrrd21/7/nhan21096.htm

Nguyen Thi Hong Nhan, Man N V and Preston T R 2009: Biomass yield of Hymenachne acutigluna and Paspalum atratum in association with Sesbania sesban on seasonally waterlogged soils and their use as feeds for cattle in the Mekong delta, Vietnam. Livestock Research for Rural Development. Volume 21, Article #121. http://www.lrrd.org/lrrd21/8/nhan21121.htm

Nguyen Thi Hong Nhan, Nguyen Trong Ngu, Nguyen Thiet, Preston T R and Leng R A 2007: Determination of the optimum level of a soybean oil drench with respect to the rumen ecosystem, feed intake and digestibility in cattle. Livestock Research for Rural Development. Volume 19, Article #117. http://www.lrrd.org/lrrd19/8/nhan19117.htm

Nguyen Thi Hong Nhan, Nguyen Trong Ngu, Vo Van Son, Preston T R and Leng R A 2007: Effects of oil drench on growth rate of cattle fattened on grass, supplemented with molasses, rice bran or rice straw. Livestock Research for Rural Development. Volume 19, Article #133. http://www.lrrd.org/lrrd19/9/nhan19133.htm

Nguyen Thi Hong Nhan, Nguyen Van Hon, Nguyen Trong Ngu, Nguyen Thi Thu Hong, Preston T R and Leng R A 2003: Effect of drenching with cooking oil on performance of local “Yellow” cattle fed rice straw and cassava foliage. Livestock Research for Rural Development 15 (7). http://www.lrrd.org/lrrd15/7/nhan157.htm

Nguyen Thi Hong Nhan, Trong Ngu N, Preston T R and Leng R A 2008: Effects of drenching soybean oil and fish oil on intake, digestibility and performance of cattle fattening in the Mekong Delta, Vietnam. Livestock Research for Rural Development. Volume 20, Article #113. http://www.lrrd.org/lrrd20/7/nhan20113.htm

Nguyen Thi Kim Dong and Ogle  B 2003  Effect of brewery waste replacement of concentrate on the performance of local and crossbred Muscovy ducks. Asian- Australasian Journal of Animal Sciences Vol 16, No 10: 1510-1517

Nguyen Thi Kim Dong and R. Brian Ogle. 2004. An evaluation of brewery waste as a replacement for concentrates in diets for growing crossbred common ducks. Tropical Animal Health and Production, 36 (2004), 715-729.

Nguyen Thi Kim Dong, Nguyen Van Thu, Ogle B and Preston T R 2008: Effect of supplementation level of water spinach (Ipomoea aquatica) leaves in diets based on para grass (Brachiaria mutica) on intake, nutrient utilization, growth rate and economic returns of crossbred rabbits in the Mekong Delta of Vietnam. Livestock Research for Rural Development. Volume 20, Article #144. http://www.lrrd.org/lrrd20/9/kdon20144.htm

Nguyen Thi Kim Khang and Ogle B 2004Effects of replacing roasted soya beans by broken rice and duckweed on performance of  growing Tau Vang chickens confined on-station and scavenging on-farm.  Livestock Research for Rural Development. Vol. 16, Art. #56. Retrieved, from http://www.lrrd.org/lrrd16/8/khan16056.htm

Nguyen Thi Kim Khang and Ogle B 2004 Effects of dietary protein level and a duckweed supplement on the growth rate of local breed chicks.  Livestock Research for Rural Development. Vol. 16, Art. #54 Retrieved, from http://www.lrrd.org/lrrd16/8/khan16054.htm

Nguyen Thi Kim Khang and Ogle B 2004 Effects of duckweed on the performance of local (Tau Vang) laying hens.  Livestock Research for Rural Development. Vol. 16, Art. #57 Retrieved, from http://www.lrrd.org/lrrd16/8/khan16057.htm

Nguyen, T. H. L., L. D. Ngoan, M. W. A.Verstegen and W. H. Hendriks. 2010. Ensiled and dry cassava leaves, and sweet potato vines as a protein source in diets for growing Vietnamese Large White x Mong Cai pigs. Asian-Aust. J. Anim. Sci. 23: 1205-1212.

Nguyen, T. H. L., L. D. Ngoan, G. Bosch, M. W. A. Verstegen and W. H. Hendriks. 2012. Ileal and total tract apparent protein and amino acid digestibility of ensilage and dry cassava leaves and sweet potato vines in growing pigs. Anim. Feed Sci. Technol. 172: 171-179.

Nguyen, T. H. L., L. D. Ngoan, M. W. A. Verstegen and W. H. Hendriks. 2011. Inclusion of ensiled cassava KM94 leaves in diets for growing pigs in Vietnam reduces growth rate but increases profitability. Asian-Aust. J. Anim. Sci., 24: 1157-1163.

Nguyen, T. H. L., L. D. Ngoan, M. W. A. Verstegen and W. H. Hendriks. 2012. Pig performance increases with the addition of DL-methionine and L-lysine to ensiled cassava leaf protein diets. Trop. Anim. Health Prod. 44: 165-172.

Nguyen Thi Thuy and Ogle B 2004: The effect of supplementing different green feeds (water spinach, sweet potato leaves and duckweed) to broken rice based diets on performance, meat and egg yolk colour of  Luong Phuong chickens. Retrieved, from MEKARN Research Reports. http://www.mekarn.org/Research/thuyctu.htm

Nguyen Thi Thuy and Ogle B 2007: Effect of supplementation on the growth and laying performance of confined and scavenging local chickens. Livestock Research for Rural Development. Volume 19, Article #30.  http://www.lrrd.org/lrrd19/2/thuy19030.htm

Nguyen Trong Ngu and Inger Ledin. 2005. Effects of Feeding Wastes from  Brassica species on Growth of Goats and Pesticide/Insecticide Residues in Goat  Meat. Asian-Australasian Journal of Animal Sciences.   Volume 18 No. 2 : 197

Nguyen Van Hiep and Preston T R 2006 Effect of cattle manure and biodigester effluent levels on growth and composition of water spinach.   Livestock Research for Rural Development. Volume 18. Article # 50. Retrieved, from http://www.lrrd.org/lrrd18/4/hiep18050.htm

Nguyen Van Hiep, Wiktorsson H and Man N V 2008: The effect of cutting interval on foliage yield and chemical composition of Tropical Kudzu (Pueraria phaseoloides) cultivated as cover-crop in rubber plantation. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/hiep1.htm

Nguyen Van Hiep, Wiktorsson H and Man N V 2008: The effect of molasses on the quality of Kudzu silage and evaluation of feed intake and digestibility of diets supplemented with Kudzu silage or Kudzu hay by heifers. Livestock Research for Rural Development. Volume 20, supplement. http://www.lrrd.org/lrrd20/supplement/hiep2.htm

Nguyen Xuan Ba, Vu Duy Giangand Le Duc Ngoan 2005: Ensiling of mulberry foliage (Morus alba) and the nutritive value of mulberry foliage silage for goats in central Vietnam.  Livestock Research for Rural Development. Vol. 17, Art. # 15. Retrieved, from http://www.lrrd.org/lrrd17/2/ba17015.htm

Nguyn Thi Kim Dong, Nguyen Van Thu and Preston T R 2008: Effect of dietary protein supply on the reproductive performance of crossbred rabbits. Livestock Research for Rural Development. Volume 20, Article #138. http://www.lrrd.org/lrrd20/9/kdon20138.htm

Nhi N H Y and Preston T R 2012: Growth of red tilapia (Oreochomis mossambicus) and black tilapia (Oreochomis niloticus) with common carp (Ciprinus carpio) in monoculture and polyculture by using natural feed in ponds fertilized with biodigester effluent. Livestock Research for Rural Development. Volume 24, Article #111. http://www.lrrd.org/lrrd24/7/nhi24111.htm

Nhi N H Y and Preston T R 2012: Growth of red tilapia (Oreochomis mossambicus) and black tilapia (Oreochomis niloticus) with common carp (Ciprinus carpio) in monoculture and polyculture by using natural feed in ponds fertilized with biodigester effluent. Livestock Research for Rural Development. Volume 24, Article #111. http://www.lrrd.org/lrrd24/7/nhi24111.htm

Ninh Thi Len, Jan Erik Lindbergand Brian Ogle (2007). Digestibility and nitrogen retention of diets containing different levels of fibre in local (Mong Cai), F1 (Mong Cai x Yorkshire) and exotic (Landrace x Yorkshire) growing pigs in Vietnam. Journal of Animal Physiology and Animal Nutrition (In press).

Ninh Thi Len, Jan Erik Lindbergand Brian Ogle (2007). Effect of Dietary Fiber Level on the Performance and Carcass Traits of Mong Cai, F1 Crossbred (Mong Cai x Yorkshire) and Landrace x Yorkshire Pigs. Asian-Australasian Journal of Animal Sciences (In press)

Nnguyen Thi Thu Hong, Quac V A, Kim Chung T T, Hiet B V, Mong N T and Huu P T 2008: Mimosa pigra for growing goats in the Mekong Delta of Vietnam. Livestock Research for Rural Development. Volume 20, Article #208. http://www.lrrd.org/lrrd20/12/hong20208.htm

Östensson K, Vo Lam, Natahlie Sjögren N and EwWredle E 2012. Prevalence of subclinical mastitis and isolated udder pathogens in dairy cows in Southern Vietnam. Trop Anim Health Prod. DOI 10.1007/s11250-012-0320-0

Pathoummalangsy K and Preston T R 2008: Effects of supplementation with rumen fermentable carbohydrate and sources of 'bypass' protein on feed intake, digestibility and N retention in growing goats fed a basal diet of foliage of Tithonia diversifolia. Livestock Research for Rural Development. Volume 20, supplement. Retrieved September 12, 2015, from http://www.lrrd.org/lrrd20/supplement/kham20076.htm

Pathoummalangsy Khamparn and Preston T R  2006: Effect of a supplement of fresh water spinach (Ipomoea aquatica) on feed intake and digestibilit