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INTERNATIONAL CONFERENCE

Live stock production, climate change and resource depletion

9 - 11 November 2010 in Pakse, Laos

Organized by:

MEKARN, NAFRI and Champasack University

Program

Links are to the full paper (bold font) or Abstracts (black)

Objectives of the Workshop	Ngo Van Man, Regional Coordinator, MEKARN Program
Farming systems for climate change and declining resources

Food, feed and energy in a carbon-negative farming system	T R Preston, MEKARN Consultant
Methane mitigation
Further considerations of the potential of nitrate as a high affinity electron acceptor to lower methane production in ruminants	R A Leng, University of New England, Australia
Nitrate salts as sources of non-protein nitrogen and a means of reducing methane production in ruminants	Le Thi Ngoc Huyen, Ho Quang Do, T R Preston and R A Leng; Cantho University, Vietnam
Effect of supplementary sulphur on in vitro methane production and dry matter fermentation	Ho Quang Do, Tran Thi Thuy, Trinh Phuc Hao, T R Preston and R A Leng, Cantho Iniversity, Cantho, Vietnam
Prediction and evaluation of methane emission of growing cattle diets in Vietnam based on fecal near infrared reflectance spectroscopy	Tran Hiep, Dang Vu Hoa, Vu Chi Cuong and Nguyen Xuan Trach; Faculty of Animal Sciences and Aquaculture – Hanoi University of Agriculture - Vietnam
Effect of different ratios of supplementary nitrate replacing urea on growth rates and methane production in goats fed sugar palm-soaked rice straw and mimosa foliage	Iv Sophea; National Agricultural School of Kampong Cham
Effect of calcium nitrate as NPN source on growth performance and methane emissions of goats fed sugar cane supplemented with cassava foliage	Anh Nguyen Ngoc, Khuc Thi Hue, Duong Nguyen Khang and T R Preston; Goat and Rabbit Research Center Sontay, Hatay, NIAS, Hanoi, Vietnam,
Local feed resources for cattle and goats
Effects of fresh or sun-dried cassava foliage on growth performance of goats fed basal diets of Gamba grass or sugar cane stalk	Bounthavone Kounnavongsa, Vanthong Phengvichith and T R Preston, Livestock Research Center, National Agriculture and Forestry Research Institute, Lao PDR
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	Khuc Thi Hue, Do Thi Thanh Van, Inger Ledin, Eva Spörndly and Ewa Wredle; Goat and Rabbit Research Center, Sontay, Hanoi, Vietnam
Effects of supplements of water hyacinth and cassava hay on the performance of local “Yellow” cattle fed a basal diet of rice straw	Cheat Sophal, Khieu Borin and T R Preston; Faculty of Animal Science and Veterinary Medicine, Royal University of Agriculture (RUA), Phnom Penh, Cambodia
*Utilisation of Mimosa pigra* as protein source for growing cattle in the Mekong Delta;**	Nguyen Thi Thu Hong; An Giang University, 25 Vo Thi Sau St., Long Xuyen City, Vietnam
Effects of ensiled water hyacinth (Eichhornia crassipes) in sheep diets on feed intake, digestibility and rumen parameters	Nguyen Van Thu; Cantho University, Cantho, Vietnam
A study of replacement of fresh water hyacinth (Eichhornia crassipes) to rice straw for improving dietary quality and performance in growing local cattle	Nguyen Van Thu; Cantho University, Cantho, Vietnam
Water hyacinth (Eichhornia crassipes) silage using different additives	Nguyen Thanh Van and Nguyen Van Thu; Cantho University, Cantho, Vietnam
*Studies on water hyacinth (Eichhornia crassipes) as feed for ruminants*	Nguyen Van Thu and Nguyen Thanh Van, Cantho University, Cantho, Vietnam
Effects of ensiled water hyacinth (Eichhornia crassipes) in sheep diets on feed intake, digestibility and rumen parameters	Nguyen Van Thu, Cantho University, Cantho, Vietna
Effect of different levels of fresh water hyacinth (Eichhornia crassipes) in the diets on feed utilization and digestibilty, rumen parameters and microbial protein synthesis in goats	Nguyen Van Thu and Nguyen Thanh Van, Cantho University, Cantho, Vietnam
Effect of cassava hay supplementation to untreated rice straw and a mineral-urea block on growth rate of swamp buffaloes under small-holder conditions	K Souksamlane, P Ammaly and M Wanapat, LRC, NAFRI, Lao PDR
Effect of feeding cassava and/or Stylosanthes foliage on the feed intake and growth rate of crossbred growing cattle	C M Thang, Inger Ledin and J Bertilsson; National Institute of Animal Science, Vietnam
Utilization of baby corn by-product as a source of roughage for livestock	Choke Mikled, Sunita Ruangkarn and Noppadon Choosamut; Department of Animal Science, Faculty of Agriculture, Chiang Mai University, Chiang Mai 50200, Thailand.
Effect of early weaning on postpartum reproductive perfomance of she-buffalos and growth of their calves	Cu Thi Thien Thu, Nguyen Xuan Trach and T R Preston, Hanoi University of Agriculture, Vietnam
Effect of harvesting inter/val on yield and nutritive value of Mulberry, and Tithonia diversifolia, and effect of these forages as supplement to rice straw on growth, feed intake, digestibility and rumen ecology in cattle	Ammaly Phengvilaysouk and T R Preston; Livestock Research Centre, National Agriculture and Forestry Research Institute, Ministry of Agriculture and Forestry, Lao PDR
Effect of supplementation with cassava leaf hay on growth rate of indigenous (Co) goats and F1 (Bach Thao x Co) crossbred goats kept under a free ranging system	Nguyen Ba Mui and Dang Thai Hai, Hanoi University of Agriculture, Vietnam
Improving edible biomass production of Tithonia diversifolia (Wild Sunflower) and methods for increasing foliage intake and growth rate of goats	*Nguyen Van Sao, Nguyen Thi Mui and Dinh Van Binh;** GRRC, Bavi, Vietnam
Weduesday, 10 November 20010 Feed resources for Ruminants	Chairperson: Dr Van Dam Tien
Effect of feeding processed cassava foliage on growth performance and parasite infestation of local goats in Laos	V. Phengvichith and T R Preston^;Research Management Division, National Agriculture and Forestry Research Institute, Ministry of Agriculture and Forestry, P. O. Box 811, Vientiane, Lao PDR
Determining the optimum proportion of water spinach as supplement to a basal diet of mango foliage on feed intake and growth rate in local goats	Daovy Kongmanila, Kham Phommachanh and T R Preston; National University of Laos
Using extract from pomegranate –tree bark and pericarp (Punica granatum) to treat nematodes in goats	Dinh Hong Quang and Nguyen Ngoc Anh; Goat and Rabbit Research Centre, Hanoi, Vietnam
Study on using “White flowers” (Spilanthes acmella Murr) as the feed supplement for Dairy Goats	Ly Thi Luyen, Nguyen Ngoc Anh and Khuc Thi Hue; Goat and Rabbit Research Centre, Sontay, Hanoi, Vietnam
Coffee break	`
Local Feed Resources for Rabbits	Chairperson: Dr Choke Mikled
Effect of different sources of carbohydrate as supplements to basal diets of water spinach and cabbage leaves on the growth rate in crossbred rabbits	Bui Phan Thu Hang, Vo Lam and T R Preston; Angiang University, Faculty of Agriculture and Natural Resources, Vietnam
Effect of Pseuderanthemum palatiferum to rabbit performance and diarrhea treatment in rabbit farmer-farms	Nguyen Ky Son; Ninh Binh Rabbit Breeding Station, Vietnam
Sweet potato tuber and paddy rice as energy supplements for growing rabbits in the Mekong Delta of Vietnam	Nguyen Thi Kim Dong, Nguyen Van Thu and T. R. Preston; Cantho University, Cantho City, Vietnam
Supplementation of dried cassava chips in growing rabbit diets to improve growth performance and economic returns	Nguyen Thi Kim Dong and Nguyen Van Thu, Cantho University, Vietnam
Effects of graded levels of paddy rice supplemented to water spinach (Ipomoea aquatica) or sweet potato (Ipomoea batatas) vines as basal diets on feed utilization and growth performance of New Zealand White rabbits	Nguyen Thi Duong Huyen, Nguyen Xuan Trach and T R Preston; Hanoi University of Agriculture, Vietnam
Effect of sweet potato (Ipomoea batatas), water spinach (Ipomoea aquatica) and malvavicus (Malvaviscus penduliflorus) on feed intake and growth performance of meat rabbits	Le Thi Lan Phuong and Le Duc Ngoan, HUAF, Vietnam
Effect of learning to eat a new feed (Mucuna pruriens) on feed intake and growth performance of growing rabbits	Doan Thi Gang, Vu Thi Thu Hang, Khuc Thi Hue; Goat and Rabbit Research Center, Hanoi, Vietnam
Effect of water spinach and mulberry leaves on intake and growth performance of rabbits	Pok Samkol, Chhay Ty and TR Presto'; Centre for Livestock and Agriculture Development (CelAgrid), Cambodia
Lunch
Recycling Organic Wastes	Chairperson: Dr R A Leng
The Small-scale Production of Food, Fuel. Feed and Fertilizer from reccycled wastes	Paul A Olivier, 27C Pham Hong Thai Street, Dalat, Vietnam
Socio-economic aspects of biogas digesters in the Southeast region, Vietnam	Nguyen Ngoc Thuy; Nong Lam University, Thu Duc, Vietnam
Amendment of sandy soil with composts made from animal excreta subjected to the traditional method or by enhancement with earthworms or a microbial inoculum	Nguyen Van Hung, T R PrestonandNguyen Tat Canh, , Hanoi University of Agriculture, Vietnam
Availability of raw materials for bioenergy production in Vietnam	Nguyen Ngoc Luan and Duong Nguyen Khang; Nong Lam University, Vietnam
Treating waste water by applying a model of fish pond or biodigester followed by a fish pond in Phuoc Tho State farm	Luu Huu Manh, Nguyen Nhut Xuan Dung, Bui Thi Le Minh, and Mai Thuy Duong, Cantho University, Vietnam
Coffee break
Effect of biochar from a gasifier stove, and biodigester effluent, on growth of maize in acid and neutral soils in the Mekong delta	Duong Nguyen Khang, T R Preston and Paul Olivier; Nong Lam University, Vietnam
Effect of irrigating manure from rabbits, sheep and goats with aqueous suspension of dried manure from the same species on growth of earthworms and fertilizer value of the earthworm compost	Nguyen Duc Tuong, Khuc Thi Hue, Nguyen Thi Mui, Nguyen Ngoc Anh; Goat and Rabbit Research Centre, Vietnam
Potential of Tithonia diversifolia (Wild Sunflower) as organic manure and forage for rabbits on the farms in Ninh Binh province, North Vietnam	Nguyen Thi Mui, Nguyen Van Sao and Hoang Minh Thanh ; Goat and Rabbit Research Center, NIAS, Vietnam
A study of different strategies for treating pig manure to make organic fertilizer and improve the environment	Nguyen Minh Thong, Cantho University, Vietnam
New Feed Resources
Taro species (Alocasia odora (C) Koch, Xanthosoma nigra (Vell I)Stellfeld and Colocasia esculenta (L) schott) ) in Central Vietnam: biomass yield, digestibility and nutritive value	Du Thanh Hang, N V Binh and Preston T R, HUAF, Hue, Vietnam
Fumonisins, aflatoxins and zearalenone contamination in maize kernels in the Southeastern provinces and Central Highlands provinces of Vietnam; Detoxifying effects of a commercial additive and Phyllanthus amarus extract in pigs fed fumonisins contaminated feed;	Nguyen Hieu Phuong, Brian Ogle, Hans Pettersson and Nguyen Quang Thieu, Faculty of Animal Science and Veterinary Medicine, Nong Lam University, Ho Chi Minh City, Vietnam
Ensiling mixtures of Tithonia diversifolia and Taro (Colocasia esculenta)	Nguyen Thi Hong Nhan, Nguyen Van Hon and T R Preston; Cantho University, Vietnam
Session B: Local Feed Resources for monogastric animals
Chairperson: Dr Nguyen Van Thu
Feeding and performance of pigs in smallholder production systems in Northern Lao PDR	Phonepaseuth Phengsavanh, Brian Ogle, Werner Stür, Bodil E. Frankow-Lindberg and Jan Erik Lindberg; Livestock Research Center National Agriculture and Forestry Research Institutek MAF, Lao PDR
Effect of rice distillers’ by-product on growth performance and digestibility of Moo Laat and Mong Cai pigs fed rice bran and water spinach	Taysayavong Lotchana and T R Preston,Champasack University, Champasack province, Lao PDR
Study on the use of ensiled taro (Colocasia esculenta) and cassava (Manihot esculenta Crantz) leaves as protein sources in diets for pigs in the uplands conditions in central Vietnam	Nguyen Thi Hoa Ly, Tran Thanh Hai and T R Preston; HUAF, Vietnam
Ensiled taro foliage (leaves + stems) as replacement for soybean meal in the diet of Mong Cai sows in Central Vietnam	Hoang Nghia Duyet, HUAF, Vietnam
Effect of fresh mulberry leaves and sweet potato vines on growth performance of pigs fed a basal diet of broken rice	*Chiv Phiny, T R Preston and Khieu Borin*; Center for Livestock and Agriculture Development (CelAgrid), Cambodia*
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	Chhay Ty, Khieu Borin and T R Preston; Center for Livestock and Agriculture Development,
Processing, using and developing the giant taro (alocasia macrorrhiza) for raising pigs in northern mountainous households of Vietnam.	Pham Sy Tiep¹, Nguyen Van Luc¹, Nguyen Manh Hung², Tran Van Tu², Tran Van Phung³; National Institute of Animal Science, Hanoi; (2) Department of Agro. and Rural development, Dinh Hoa, Thai nguyen; (3) Thai nguyen University - Vietnam
Coffee break	Chairperson: Dr Nguyen Xuan Trach
Growth response of native pigs from Leucaena leave supplementation of basal diets of rice bran and maize	Phonepaseuth Phengsavanh, Soukanh Keonouchanh and Keo Xayphengphanh; Livestock Research Center, National Agriculture and Forestry Research Institutek MAF, Lao PDR
The effect of dietary fiber level on gut environment and bacteria development of Mong Cai and exotic (Landrace x Yorkshire) pigs of different ages.	Tran Thi Bich Ngoc, Ninh Thi Len and Lai Thi Nha; National Institute of Animal Science, Vietnam
Comparison of growth performance, total tract digestibility, nitrogen utilization, and faecal microflora of MongCai and Landrace x Yorkshire pigs fed low crude protein and high fibre diet with and without exogenous enzyme supplementation	Ninh Thi Len and Le van Huyen; Institute of Animal Science, Vietnam
Ensiling techniques for cabbage by-products and their nutritive value for pigs	Doan Thi Hoang Mai, Le Duc Ngoan and Du Thanh Hang; HUAF, Vietnam
Effects of tumeric (Curcuma longa) and garlic on growth performance feed conversion and blood fat components of growing –finishing pigs	Nguyen Nhut Xuan Dung, Do Vo Anh Khoa, Luu Huu Manh and Dang Thi Ngoc Han; Cantho University, Vietnam
Studies on Tra catfish by-product residue meals in diets of growing pigs	Tran Trung Tuan and Brian Ogle; An Giang University, 25 Vo Thi Sau St., Long Xuyen City, Vietnam
Chairperson: Dr Le Duc Ngoan
Ensiled processing technique and utilization of ensiled brewer’s grain as protein source in diets for crossbred (Large White x Mong Cai) pigs in Central Vietnam	Nguyen Thi Loc; University of Agriculture and Forestry, Hue city, Vietnam
Effect of rice distiller’s residue originating from alcohol production on growth performance, microflora, morphology of small intestine and prevalence of diarrhoea disease of nursery pig	Dao Thi Phuong, Tran Thi Thu Hong, Nguyen Hai Quan; HUAF, Hue, Vietnam
Effects of replacing soybean meal with cashew nut oil meal (Anacardium occidentale L.) in the diets of growing pigs	Bui Huy Nhu Phuc; University of Agriculture and Forestry. Thu Duc. Ho Chi Minh City. Vietnam
Coconut meal to replace part of the protein of catfish residue meal in diets for fattening pigs in the Mekong Delta of Vietnam	Le Thi Men, Do Vo Anh Khoa, Vo Minh Goi and Doan Thi Minh Nguyet, Cantho University, Vietnam
Effect on the performance of common ducks of supplementing rice polishings with taro (Colocacia esculenta) foliage	Nguyen Tuyet Giang, T R Preston and B Ogle_,Department of Animal Husbandry and Veterinary Medicine, Angiang University, Vietnam
Replacing rice bran with ensiled taro foliage in diets of growing ducks	Vor Sina, Chhay Ty, Khieu Borin, Sok Chanpheakdey, Hem Buntho and T R Preston; Center for Livestock and Agriculture Development, PO Box 2423 Phnom Penh 3, Cambodia
Effect of supplementing rice bran with sweet potato leaf meal and earthworms on growth performance of Muscovy and Pekin ducks	Pham Tan Nha, Cantho University, Vietnam
Evaluation of ensiled Gac shell (Momordica cochinchinensis Spreng) to be used as chicken and pig feed	Nguyen Thi Tuyet Le, Le Viet Phuong and Bui Quang Tuan; Hanoi University of Agriculture, Vietnam
Feed selection and growth performance of local chickens offered different carbohydrate sources in fresh and dried form supplemented with protein-rich forages	Kong Saroeun, Brian Ogle, T R Preston and Khieu Borin; Center for Livestock and Agriculture Development, PO. Box 2423, Phnom Penh 3, Cambodia
Golden apple snails and Tra fish by-products as protein supplements in diets of fattening ducks	Bui Xuan Men and Nguyen Thanh Cong; Cantho University, Vietnam
Effects of supplementation of ginger (Zigiber officinale) and garlic (Allium sativa L) extracts (phyto-antibiotics) on digestibility, immune responses and performance of broiler chicken	*Do Viet Minh, Le Van Huyen, Pham Cong Thieu, Tran Quoc Tuan, Nguyen Thi Nga and Nguyen Quy Khiem;** Department of Animal Nutrition and Feed Processing; NIAS, Vietnam
Effects of Tofu waste as a partial replacement of soybean cake on egg production of Luong Phuong hens	Le Diep Long Bien , Pham Cong Thieu* Tran Thi Kim Nhan; National Institute of Animal Husbandry, Ha Noi, Vietnam,
Local feed resources for fish
Water Resource Use and Environmental Impacts of Striped Catfish (Pangasianodom hypophthalmus) Farming Practices in the Vicinity of the Mekong Delta Area, Vietnam: a review	Chau Thi Da and Thai Huynh Phuong Lan; Department of Aquaculture, Faculty of Agriculture and Natural Resources, An Giang University, Vietnam.
Effect of varying dietary protein levels and fish density on growth performance of black carp (Mylopharyngodon piceus)	Kim Van Van, Hanoi University of Agriculture, Vietnam
Effect of stocking densities and feed supplements on the growth performance of tilapia (Oreochromis spp.) raised in ponds and in the paddy field	Sen Sorphea, Torbjorn Lundh, T R Preston and Khieu Borin; CelAgrid (Center for Livestock and Agriculture Development), PO. Box 2423, Phnom Penh 3, Cambodia
Effect of earthworms as replacement for trash fish and rice field prawns on growth and survival rate of marble goby (Oxyeleotris marmoratus) and Tra catfish (Pangasius hypophthalmus)	Nguyen Huu Yen Nhi, T R Preston, Brian Ogle and Torbjorn Lundh, An Giang University, 25 Vo Thi Sau St., Long Xuyen City, Vietnam
Use of soldier fly (Hermetia illucens) pupae reared in different manure sources as protein source for hybrid catfish (Clarias sp.) culture	Nguyen Van Dung and Nguyen Phu Hoa; Faculty of Fisheries, Nong Lam University, Vietnam
Effect of earthworm and duckweed on fish growth performance in a polyculture system	Tran Thi Nang Thu; Hanoi University of Agriculture, Vietnam
Use of Wastewater Effluent from Striped Catfish (Pangasius Hypothalamus) Ponds for Integrated Rice-Fish Farming System.	Cao Van Thich, Chau Thi Da, Tran Thi Kim Tuyen, Thai Huynh Phuong Lan, Nguyen Huu Yen Nhiand Luan; Aquaculture Department of Faculty of Agriculture and Natural Resources, An Giang University, Vietnam
Earthworm meal and yeast as replacement for fish meal in diets of striped catfish (Pangasianodon hypophthalmus)	Phan Phuong Loan, Truong Thanh Binh and Tran Thi Xuan Trang; Department of Aquaculture, Faculty of Agriculture and Natural Resources, An Giang University, Vietnam
A study of different strategies for treating pig manure to make organic fertilizer and improve the environment;	Nguyen Minh Thong, CAntho University, Vietnam
Effect of harvest interval on biomass yield and nutritive value of Mulberry (Morus alba) and Tithonia diversifolia	Souksamlane Khamphoume, Ammaly Phengvilaysouk and T R Preston; LRC, NAFRI, Lao PDR
Oxalate content in the different taro cultivars in Central Viet Nam and effect of simple processing methods on oxalate concentration	Du Thanh Hang, T R Preston and G Savage; HUAF, Hue, Vietnam
Ensiling banana pseudo-stem with Taro (Colocasia esculenta) leaves and petioles	Dao Thi My Tien, Nguyen Tuyet Giang and T R Preston; An Giang University, Vietnam
Developing pasture grass system on seasonally waterlogged and dry soil and effect of cottonseed cake and Trichantera gigantea on dairy cattle in the Khmer ethnic region of Vietnam	Nguyen Thi Hong Nhan and Nguyen Van Hon, Cantho University, Cantho, Vietnam
Evaluation of Water spinach and Enydra fluctuans for animal waste water treatmentand and as basal diet of growing rabbits (poster)	Nguyen Thiet, Nguyen thi Hong Nhan and La Minh Tuan; Cantho University, Cantho, Vietnam
Effect of management practices on edible biomass production, nutrition composition of Ipomoea pes-caprae (Sea-water spinach) in dry season at coastal areas of Ninh Thuan province	Trinh Xuan Thanh; Goat and Rabbit Research Centre, Sontay, Hanoi, Vietnam
Evaluation of ensiling capacity of Gac shell (Momordica cochinchinensis Spreng) to be used in chicken and pig feeding	Nguyen Thi Tuyet Le, Le Viet Phuong and Bui Quang Tuan; Hanoi University of Agriculture, Vietnam
Effect of earthworms as protein source on the performance of crossbred Muscovy ducks fed a basal diet of rice bran	Dao Thi My Tien and Nguyen Thi Thu Hong; An Giang University, Vietnam
Effect of earthworm and duckweed on fish growth performance in a polyculture system	Tran Thi Nang Thu; Hanoi University of Agriculture, Vietnam
The growth of 5 varieties of F1 hydrid rabbits from New Zealand, California and local rabbits fed local grasses and concentrate	Nguyen Ba Trung and Nguyen Thi Xoan; An Giang University, Vietnam
Effect of sweet potato (Ipomoea batatas), water spinach (Ipomoea aquatica) and malvavicus (Malvaviscus penduliflorus) on feed intake and growth performance of meat rabbits	Le Thi Lan Phuong and Le Duc Ngoan, HUAF, Vietnam

Program

Water hyacinth (Eichhornia crassipes) silage using different additives

Effects of ensiled water hyacinth (Eichhornia crassipes) in sheep diets on feed intake, digestibility and rumen parameters

Nguyen Van Thu, Cantho University, Cantho, Vietna

C M Thang, Inger Ledin and J Bertilsson; National Institute of Animal Science, Vietnam