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1·The rate of cow's oestrum fecundation is one key factor of cattle's breeding rate.

奶牛情期受胎率是影响奶牛繁育率的重要因素之一。

2·The giant pandas' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss, and other human-related causes of mortality.

大熊猫自然繁殖的比率很低限制了种群的快速恢复，来自非法猎取，产地损失，还有其他人为因素影响死亡率。

3·The giant pandas ' naturally slow breeding rate prevents a population from recovering quickly from illegal hunting, habitat loss, and other human - related causes of mortality.

大熊猫自然繁殖的比率很低限制了种群的快速恢复，来自非法猎取，产地损失，还有其他人为因素影响死亡率。

4·The invention can improve breeding rate of hybrid geese, and performance of its production geese fatty liver is fine, enhance the adaptability and decrease elimination and mortality rate greatly.

本发明的方法可以提高杂交鹅的繁育率，且其生产的鹅肥肝的性能较好，适应性增强，淘汰死亡率大大降低。

5·Towards the end of the plover breeding season, the rate of female divorce declines.

在鸟的繁殖期快要结束的时候，雌鸟离婚的比率就下降了。

6·Primary infection source may be reduced by breeding and selecting the variety with the lower infected seedling rate of seed-borne SMV.

可以通过选育和筛选种传病苗率低的品种推广，减少本病的初次侵染来源。

7·It is said that here the number of exhibits and the number of breeding like rabbits, was growing at a rate of several times.

据称，这里的展品数量也和兔子的繁殖数量一样，呈几倍的速度增长。

8·It has been proved by our practice that this new method with many advantages such as simplicity in operation, easy mutation and high utilization rate, is a new breeding technique fast and effective.

实践证明，这个方法具有简便、易产生变异、利用率高等优点，是一种快捷有效的新育种技术。

9·So choosing and breeding maize variety of highly nitrogen fertilizer utilization rate based on different maize genotype is a positive and efficient measure to the problem.

针对这一情况，一种积极有效的措施就是根据玉米基因型存在差异而选育氮高效玉米品种。

10·Secondly: Improving the quality of exhibitors, the participanting rate of enterprises of Breeding , reproduction and pushing integration and regional characteristics corporates was high.

二是提高参展质量，“育繁推”一体化企业、区域特色实力企业参会率较高。