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Development of feeding systems and strategies of supplementation to enhance rumen fermentation and ruminant production in the tropics

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Journal of Animal Science and Biotechnology 2013年第3期4卷 223-233页

作者： Metha Wanapat Sungchhang Kang Sineenart Polyorach Tropical feed resources Research and Development Center (TROFREC) Department of Animal Science Faculty of Agriculture Khon Kaen UniversityKhon Kaen 40002 Thailand Department of Animal Science Faculty of Natural Resources Rajamangala University of Technology-Isan Sakon Nakhon CampusPhang Khon Sakon Nakhon 47160 Thailand

The availability of local feed resources in various seasons can contribute as essential sources of carbohydrate and protein which significantly impact rumen fermentation and the subsequent productivity of the *** developments,based on enriching protein in cassava chips,have yielded yeast fermented cassava chip protein（YEFECAP） providing up to 47.5% crude protein（CP）,which can be used to replace soybean *** use of fodder trees has been developed through the process of pelleting;Leucaena leucocephala leaf pellets（LLP）,mulberry leaf pellets（MUP） and mangosteen peel and/or garlic pellets,can be used as good sources of protein to supplement ruminant *** from producing volatile fatty acids and microbial proteins,greenhouse gases such as methane are also produced in the *** methods have been used to reduce rumen ***,among many approaches,nutritional manipulation using feed formulation and feeding management,especially the use of plant extracts or plants containing secondary compounds（condensed tannins and saponins） and plant oils,has been *** approach could help todecrease rumen protozoa and methanogens and thus mitigate the production of *** present,more research concerning this burning issue-the role of livestock in global warming-warrants undertaking further research with regard to economic viability and practical feasibility.

关键词： feed resources feeding system Methane Plant secondary compounds Ruminants

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Cattle feed Resource,Water Sources and Housing System in the Central Rift Valley of Oromia Regional State,Ethiopia

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NASS Journal of Agricultural Sciences 2021年第1期3卷 10-17页

作者： Aman Gudeto Sandip Banerjee Tadele Mirkena Tesfaye Alemu Tucho Adami Tulu Agriculture Research Center Ethiopia College of Agriculture Science and Technology India Food and Agriculture Organization of United Nation(FAO) Addis Ababa

The study was conducted in Adami Tulu Jidokombolcha(ATJK),Bora,Dodola,Shala and Negele-Arsi districts with objective to assess main cattle feed resources,water sources and housing systems.A pre-tested,semi-structured questionnaire was used to conduct *** 240 respondents were identified using random sampling *** data was analyzed by SPSS statistical software(Ver.24).Study result indicates that household in average had three hectares of land and allocated about two hectares of land for crop *** respondents reported that cattle herding is not common during dry season while it is common during wet *** result indicate that natural pasture,weed and maize tiller and stored crop residues are main feed resources in wet season while crop after math,crop residue and fodder trees are main resources during dry ***,local mineral and common salt are mineral sources for cattle in study ***,river and boreholes are important water sources in dry season where as ponds and rivers are main water sources during wet season for their *** observed cattle watering frequency is mainly once a *** system practiced in the study areas is mainly *** information generated from this study on land size per household,cattle herding system,feed resources,mineral sources,water sources,water utilization and housing type can be used as a baseline for any livestock development programs in those and similar areas.

关键词： Cattle Water Mineral sources feed resources Housing system Central rift valley

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Dietary sources and their effects on animal production and environmental sustainability

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Animal Nutrition 2015年第3期1卷 96-103页

作者： Metha Wanapat Anusorn Cherdthong Kampanat Phesatcha Sungchhang Kang Tropical feed resources Research and Development Center (TROFREC) Department of Animal Science Faculty of Agriculture Khon Kaen University Agricultural Unit Department of Education National Institute of EducationPhnom Penh 12401 Cambodia

Animal agriculture has been an important component in the integrated farming systems in developing countries. It serves in a paramount diversified role in producing animal protein food, draft power, farm manure as well as ensuring social status-quo and enriching livelihood. Ruminants are importantly contributable to the well-being and the livelihood of the global population. Ruminant production systems can vary from subsistence to intensive type of farming depending on locality, resource availability,infrastructure accessibility, food demand and market potentials. The growing demand for sustainable animal production is compelling to researchers exploring the potential approaches to reduce greenhouse gases(GHG) emissions from livestock. Global warming has been an issue of concern and importance for all especially those engaged in animal agriculture. Methane(CH_4) is one of the major GHG accounted for at least 14% of the total GHG with a global warming potential 25-fold of carbon dioxide and a 12-year atmospheric lifetime. Agricultural sector has a contribution of 50 to 60% methane emission and ruminants are the major source of methane contribution(15 to 33%). Methane emission by enteric fermentation of ruminants represents a loss of energy intake(5 to 15% of total) and is produced by methanogens(archae) as a result of fermentation end-products. Ruminants' digestive fermentation results in fermentation end-products of volatile fatty acids(VFA), microbial protein and methane production in the rumen. Rumen microorganisms including bacteria, protozoa and fungal zoospores are closely associated with the rumen fermentation efficiency. Besides using feed formulation and feeding management, local feed resources have been used as alternative feed additives for manipulation of rumen ecology with promising results for replacement in ruminant feeding. Those potential feed additive practices are as follows: 1) the use of plant extracts or plants containing secondary compounds(e.g

关键词： Animal production system feeding feed resources Environment Nutrition

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