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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 abstracts).

	Tuesday, 9 November 20010	Chairperson: Dr Brian Ogle
08.00	Welcome Address	Rector, Champasack University
08.15	Objectives of the Workshop	Ngo Van Man, Regional Coordinator, MEKARN Program
	Farming systems for climate change and declining resources

8.30	Food, feed and energy in a carbon-negative farming system	T R Preston, MEKARN Consultant
	Methane mitigation	Chairperson: Dr Metha Wanapat
09.00	An update on the use of nitrate as a fermentable N source to reduce methane production by ruminants	R A Leng, University of NBew England, Australia
9.30	Carbohydrate, protein fractions and energy contents of prominent Indian green fodders vis a vis their contribution in in vitro methane production on incubation in buffalo inoculums	Sultan Singh, BP Kushwaha, P K Gupta S Bhattacharya, S K Nag and A K Mishra, Indian Grassland and Fodder Research Institute, Jhansi India
09.50	Coffee and tea break
10..10	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
10.30	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
10.50	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
11.10	Effect of different ratios of supplementary sodium 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
11.30	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,
11.50-13.00	Lunch

	Session A: Feed resources for Ruminants and rabbits
	Local feed resources for cattle and goats	Chairperson: Dr Peter Rowlinson
13.00	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
13.20	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
13.40	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
14.00	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
14.20	Studies on water hyacinth (Eichhornia crassipes) as feed for ruminants	Nguyen Van Thu and Nguyen Thanh Van, Cantho University, Cantho, Vietnam
14.50	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
15.10	Coffee break	Chairperson: Dr Vu Chi Cuong
15.30	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
15.50	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.
16.10	Effect of early weaning on postpartum reproductive perfomance of she-buffalos and growth of their calves	Cu Thi Thien Thu and Nguyen Xuan Trach, Hanoi University of Agriculture, Vietnam
16.30	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
16.50	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
17.10	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
08.00	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
08.20	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
08.40	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
09.00	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
09.20	Coffee break	`
	Local Feed Resources for Rabbits	Chairperson: Dr Choke Mikled
09.40	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
10.20	Effected of the Pseuderanthemum palatiferum to rabbit performance and diarrhea treatment in rabbit farmer-farms	Nguyen Ky Son; Ninh Binh Rabbit Breeding Station, Vietnam
10.40	Carbohyrate feed resources for rabbits	Nguyen Thi Kim Dong and Nguyen Van Thu, Vietnam
11.10	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
11.30	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
11.50	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
12.10-13.30	Lunch
	Recycling Organic Wastes	Chairperson: Dr R A Leng
13.30	The Small-scale Production of Food, Fuel. Feed and Fertilizer from reccycled wastes	Paul A Olivier, 27C Pham Hong Thai Street, Dalat, Vietnam
14.00	Socio-economic aspects of biogas digesters in the Southeast region, Vietnam	Nguyen Ngoc Thuy; Nong Lam University, Thu Duc, Vietnam
14.20	Effect of composts made from the wastes of animal production using microbial method on growth of maize grown in sandy soil	Nguyen Van Hung and Nguyen Tat Canh, Hanoi University of Agriculture, Vietnam
14.40	Availability of raw materials for bioenergy production in Vietnam	Nguyen Ngoc Luan and Duong Nguyen Khang; Nong Lam University, Vietnam
15.00	Evaluation of treating waste water by applying a model of fish pond or biogas followed a fish pond in Phuoc Tho State farm	Luu Huu Manh, Nguyen Nhut XuanDung, Bui thi Le Minh, Mai Thuy Duong, Cantho University, Vietnam
15.20	Coffee break
15.40	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
16.00	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
16.20	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
16.40	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
17.00	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
17.20	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
17.40	Ensiling mixtures of Tithonia diversifolia and Taro (Colocasia esculenta)	Nguyen Thi Hong Nhan, Duong Vu and T R Preston; Cantho University, Vietnam
Tuesday 9 November	Session B: Local Feed Resources for monogastric animals
Local feed resources for pigs		Chairperson: Dr Nguyen Van Thu
13.00	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
13.20	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
13.40	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
14.00	Taro foliage and othe vegetative proein sources in diets for Mong Cai sows in Central Vietnam	Hoang Nghia Duyet, HUAF, Vietnam
14.20	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*
14.40	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,
15.00	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
15.20	Coffee break	Chairperson: Dr Nguyen Xuan Trach
15.40	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
16.00	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
16.20	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
16.40	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
17.00	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
17.20	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
Wednesday 10 November: Local feed resources for pigs (Contd)		Chairperson: Dr Le Duc Ngoan
08.00	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
08.20	Pigs familiar with duckweed readily accept another unfamiliar green feed, Leucaena leucocephala	Dam Van Tien; HUAF, Vietnam
08.40	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
09.00	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
09.20	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
09.40	Coffee break
	Local feed sources for ducks and chickens	Chairperson: Dr Khieu Borin
10.00	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
10.20	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
10.40	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
11.00	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
11.20	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
11.40	Replacing rice bran with ensiled taro foliage in diets of growing ducks	Chhay Ty, Khieu Borin, Sok Chanpheakdey, Vor Sina, Hem Buntho, and T R Preston; Center for Livestock and Agriculture Development, PO Box 2423 Phnom Penh 3, Cambodia
12.00-13.00	Lunch
13.00	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
13.20	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	Chairperson: Dr Jan Erik Lindberg
13.40	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.
14.00	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
14.20	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
14.40	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
15.00	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
15.20	Effect of earthworm and duckweed on fish growth performance in a polyculture system	Tran Thi Nang Thu; Hanoi University of Agriculture, Vietnam
15.40	Coffee
16.00	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
16.20	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
16.40	A study of different strategies for treating pig manure to make organic fertilizer and improve the environment;	Nguyen Minh Thong, CAntho University, Vietnam
17.00	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
17.20	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
17.40	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
	Poster session
Poster	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 (Poster)	Nguyen Thi Hong Nhan and Nguyen Van Hon, Cantho University, Cantho, Vietnam
Poster	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
Poster	A study of making water hyacinth (Eichhornia crassipes) silage by using different substrate sources (Poster)	Nguyen Thanh Van and Nguyen Van Thu, Cantho University, Vietnam
Poster	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 (Poster)	Trinh Xuan Thanh; Goat and Rabbit Research Centre, Sontay, Hanoi, Vietnam
Poster	Evaluation of ensiling capacity of Gac shell (Momordica cochinchinensis Spreng) to be used in chicken and pig feeding (Poster)	Nguyen Thi Tuyet Le, Le Viet Phuong and Bui Quang Tuan; Hanoi University of Agriculture, Vietnam
Poster	Effect of earthworms as protein source on the performance of crossbred Muscovy ducks fed a basal diet of rice bran (Poster)	Dao Thi My Tien and Nguyen Thi Thu Hong; An Giang University, Vietnam
Poster	Effect of earthworm and duckweed on fish growth performance in a polyculture system (Poster)	Tran Thi Nang Thu; Hanoi University of Agriculture, Vietnam
Poster	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
Poster	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

Carbohydrate, protein fractions and energy contents of prominent Indian green fodders vis a vis their contribution in in vitro methane production on incubation in buffalo inoculums

Sultan Singh, BP Kushwaha, P K Gupta S Bhattacharya, S K Nag and A K Mishra, Indian Grassland and Fodder Research Institute, Jhansi India

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