文章详细信息 关键词： 奶牛;;泌乳性能;;氮磷减排;;营养调控 [gap=966]Keywords: dairy cattle;milk performance;nitrogen and phosphorus reduction;trophic manipulation
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ObjectiveAssociation between the polymorphism of AGPAT6 gene and the milk performance of dairy cattle was studied to search for applicable molecular markers in dairy breeding.
目的研究牛AGPAT6基因的遗传多态及其对奶牛产奶性能的影响，以期找到可用的分子标记，为奶牛的分子育种提供依据。
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Milk quality is affected by several factors such as feed and feeding, milk lactation stage and milk performance, environment, diseases and breed.
牛奶品质的优劣受诸多因素的影响，如饲料组成与营养、奶牛泌乳阶段与水平、环境、疾病、品种等。
The second part was mainly conducted to study the effects of four typical diets on rumen nitrogen metabolism, protein digestion and absorption in the small intestine, and dairy cow's milk performance.
本论文第二部分主要研究了四种不同精粗比典型日粮条件下泌乳奶牛瘤胃氮素代谢、小肠蛋白质的消化吸收及其对生产性能的影响。
Effects of supplementary corn silage or concentrate on the digestibility of compound rice straw-based blocks and milk performance of dairy cows.
补充青贮玉米或精料对复合稻草块消化率及其饲喂奶牛产奶性能的影响。
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