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。
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.
研究牛agpat 6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。
It was concluded that the performance and health status of postpartum dairy cows can be improved when prepartum diets are supplemented with anionic salts.
本试验结论：产前饲粮中添加阴离子盐能够改善奶牛产后的健康状况，提高泌乳性能。
The factors affecting the hay production and the influences of chemical desiccant on the production of hay and the performance of dairy cattle were introduced.
本文介绍了影响干草制备的因素及化学干燥剂对干草制备和奶牛生产性能的影响。
The effect of oil origanum additive on milking performance and antioxidative function of dairy cows was observed through experiment.
试验通过添加牛至油来观察其对奶牛的产奶性能及抗氧化功能的影响。
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。
The fifth part is to analyze the influence factors of the performance of the China's dairy manufacturing industry.
研究表明，规模变量、广告密度、国有产权变量对绩效影响显著。第六部分是个案分析。
Lower reproductive performance of high producing dairy cows is associated with negative energy balance (NEB).
高产奶牛繁殖性能下降与能量负平衡(NEB)有关。
Plug flow reactor(PFR) and Continuous stirred tank reactor(CSTR) were studied to compare their performance for treating dairy manure.
对推流式反应器（PFR）和完全混合式反应器（CSTR）用于牛粪液厌氧消化的性能进行了比较研究。
During periods of stress, such as prepartum, postpartum, high temperature and transportation, milk production, immune function, reproductive performance of dairy cows are reduced.
奶牛在妊娠晚期、产奶早期、高温时期和运输过程中处于极度应激的状态下，生产性能、免疫力、繁殖性能均受到影响。
DCAD has straight effects on blood acid-base balance and enzyme system's function of dairy cows, and it can improve on the dairy cows' health status and increase the milk performance.
DCAD直接影响奶牛血液的酸碱平衡及酶系统等的功能，可以改善奶牛的健康状况、提高奶牛生产性能。
A high performance liquid chromatography-photodiode array detector for determining the content of melamine in fresh milk and dairy produce was studied.
建立用高效液相色谱-二极管阵列法测定生鲜乳及乳制品中的三聚氰胺的检测方法。
Abstract: This experiment was conducted to study the effects of dietary metabolizable glucose (MG) level on performance and physiological indices of dairy cows under heat stress.
摘要：本试验旨在研究热应激条件下不同代谢葡萄糖水平的饲粮对奶牛生产性能和生理指标的影响。
Abstract: This experiment was conducted to study the effects of dietary metabolizable glucose (MG) level on performance and physiological indices of dairy cows under heat stress.
摘要本试验旨在研究热应激条件下不同代谢葡萄糖水平的饲粮对奶牛生产性能和生理指标的影响。
The performance of Saanen dairy goat has been analysed statistically.
本文统计分析了西北农学院莎能羊群的产奶性能。
However, in the us, high-tech cannibalism - the use of performance-enhancing dairy feed whose protein comes from slaughterhouse waste, blood and manure to feed farm animals - still prevails.
然而，在美国，高科技同类互食—使用促进生长的乳牛饲料(饲料中的蛋白质来自屠宰厂废弃物、血液和粪便)来喂养农场动物—仍然盛行。
However, in the us, high-tech cannibalism - the use of performance-enhancing dairy feed __ 4 __ protein comes from slaughterhouse waste, blood and manure to feed farm animals - still prevails.
然而，在美国，高科技同类互食—使用促进生长的乳牛饲料(饲料中的蛋白质来自屠宰厂废弃物、血液和粪便)来喂养农场动物—仍然盛行。
However, in the us, high-tech cannibalism - the use of performance-enhancing dairy feed __ 4 __ protein comes from slaughterhouse waste, blood and manure to feed farm animals - still prevails.
然而，在美国，高科技同类互食—使用促进生长的乳牛饲料(饲料中的蛋白质来自屠宰厂废弃物、血液和粪便)来喂养农场动物—仍然盛行。
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