Current research progresses on calf rearing and nutrition in China

查看全文 作　　者：DIAO Qi-[1]yu;ZhAng [1]Rong;Tu [1]Yan

机构地区：[1]Feed Research Institute, Chinese Academy of Agricultural Sciences/Key Laboratory of Feed Biotechnology, Ministry of Agriculture/Beijing Key Laboratory of Dairy Cow Nutrition, Beijing 100081, P.R.China

出　　处：《Journal of Integrative Agriculture》索引2017年第16卷第12期,共10页

基　　金：funded by the Collaborative Innovation Task of the Agricultural Science and Technology Innovation Program in Chinese Academy of Agricultural Sciences (CAAS);the Fundamental Research Funds for Central Non-profit Scientific Institution of CAAS 摘　　要：Calves are the reserve forces for dairy cattle. Scientific rearing strategy of calves is the basis of efficient cattle breeding. However, many problems exist in current rearing systems of calves and restrict the sustainable development of dairy cattle in China. The absence of basic research is the most highlighted problem among them. Recent researches on growth performance, nutrient digestibility, blood biochemical indices and rumen development in calves were summarized in this paper. Additionally, the optimal levels of energy and protein in milk replacer and starter diets for calves were indicated, and limiting amino acids for calves fed different diets were discussed. A variety of additives, such as acidifiers, probiotics and polysaccharides, are regarded as promising alternatives to antibiotics to reduce disease in calves. Dietary supplementations of these additives have positive effects on growth and health of calves. However, studies on the nutrition of vitamins and minerals in calves have been seldom done, and deserve our further researches. To sum up, the postnatal period is one of the most critical 'windows' for rumen manipulation and epigenetic regulation. Any changes from environments, especially early nutrition, may produce long-term effects on growth, health and milk yields in adult cattle. 关键词：calf rearing GROWTH PHYSIOLOGY NUTRITION ADDITIVES

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Current research progresses on calf rearing and nutrition in China

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耦合文献(39)

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