Now lets do the same calculation for USA subtracting all pigs imported from Canada from USA slaughter total and then divide by U. s breeding herd.
现在让我们对美国也做同样的计算，减去从加拿大进口和从美国屠宰的全部猪的总数，然后除以美国种猪群体数。
We simulated the impacts of breeding herd size, reproductive skew and numbers of breeding stags on the inbreeding coefficient of Père David's deer.
模拟分析了繁殖群体大小、繁殖偏倚和占群优势雄性数目对麋鹿的有效种群大小的影响。
Dr. Russel is creating an elite herd by cross-breeding goats from around the globe.
罗素博士正在通过使来自世界各地的山羊杂交而创造一种精品羊群。
The model used was the sire model containing herd-year-season(HYS) effect(fixed), sire group effect(fixed)and sire effect(random), which is widely used in dairy cattle breeding.
方差组分估计所用的模型为奶牛育种中常用的公畜模型，它包括场年季固定效应、公牛组固定效应和公牛随机效应。
Ultimate measure of dairy herd improve and establish elite cow herd is dairy breeding work.
奶牛育种工作，是改善牛群质量、建立良种奶牛群根本措施。
This indicates that the productive performance of Large-Yorkshire can be increased by opened herd breeding.
这表明，开放式群体选育能提高大约克夏猪的生产性能。
Dr Russel is creating an elite herd by cross-breeding goats from around the globe.
拉塞尔博士正通过把全球各地的山羊品种进行杂交来培育一个优良种群。
Being worked out herd early selection plan is one of the most important tasks to dairy herd breeding .
从不同角度分别对成母牛群和后备牛群早期选种方案的制定方法、实施原则和步骤进行了探讨。
Jintang Black Goat is an excellent breed for meat_type after long_term herd selecting and breeding, which is distributed mainly over Jintang and its neighbour areas.
金堂黑山羊是经长期群选群育而形成的优良肉用山羊品种，主要分布于金堂县及临近区域。
Jintang Black Goat is an excellent breed for meat_type after long_term herd selecting and breeding, which is distributed mainly over Jintang and its neighbour areas.
金堂黑山羊是经长期群选群育而形成的优良肉用山羊品种，主要分布于金堂县及临近区域。
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