In order to obtain growth and development traits associated with the yak DNA marker, improve the performance and speed up the breeding process of yak.
为了获得与牦牛生长发育性状相关的标记位点，提高牦牛生产性能，加快牦牛育种进程。
The near-isogenic lines (NILs) are the important materials in studying the performance and function of the crop traits.
近等基因系是研究作物性状表现与功能的重要材料。
The experiment was conducted to study the performance, nutrient efficiency, blood serum biochemical traits and the mineral element in tissue of cage-rearing young ducks (one day).
研究饲粮中添加不同水平硫酸锰对笼养蛋雏鸭生产性能、营养物质利用率、血清生化指标以及组织矿物元素沉积的影响。
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