为了克服这个潜在的问题，多将来自不同繁殖群的仔猪混养在一起，称为共同混合。
To overcome this potential problem, many procedures mix pigs from different breeding units - know as co-mingling.
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。
We simulated the impacts of breeding herd size, reproductive skew and numbers of breeding stags on the inbreeding coefficient of Père David's deer.
这个养殖中心是为了给兀鹫创造一个安全繁殖群，也许它们最终会被放生到没有使用双氯芬酸的野外。
The centre is intended to create a secure breeding-stock of vultures that may eventually be released into a diclofenac-free wild.
那是因为大型生物的繁殖速度十分缓慢，所以只要除去象群中的几头年轻的母象，它们的数量就会大幅的下降。
That's because very large animals have a slow rate of reproduction, so all you have to do is remove a few young females from the herd, and you can, fairly quickly, significantly reduce the population.
这一注视繁殖行为的研究在一个隔离的唱歌麻雀群中进行,这一麻雀群生活在远离加拿大海岸的蒙大特岛的草原上.
The study looked at breeding behaviour in an isolated population of song sparrows living in grasslands on the island of Mandarte, off the coast of Canada.
因为所有的水域基本都快干涸了，所以着色菌群在缺氧的水域繁殖，它们的颜色反映在水面上就是不透明的血红色。
And as most of the water dried up, Chromatiaceae, which flourishes on oxygen-starved water reservoir, does it work was reflected on the new opaque-red colour of the West Texas lake.
据阿克力博士称，我们居家最糟糕的“隐形杀手”细菌要数那些我们看不到也闻不到但是却可以在七个小时内从单一的个体繁殖成成千上万的细菌群了。
According to Dr Ackerley, the worst bacteria in our homes are 'silent killers' that we cannot see or smell but that can multiply from a single bacterium to several million in just seven hours.
然后我试着养虎皮鹦鹉，因为我听说它们繁殖非常快，但祸从天降，一群耗子闯入把它们全吃了。
Then I tried budgerigars, because I'd heard that budgerigars reproduce really quickly; unfortunately, the rats got in and ate them too.
这群头上长著一丛毛的企鹅在入冬后就出海展开年度觅食，次年春天回来繁殖。
The tufty-headed penguins headed out to sea at the onset of winter for their annual forage and returned on the following spring to breed.
猪繁殖障碍与呼吸道综合征（PRRS）和猪圆环病毒2型（PCV-2）是近几年来严重危害猪群的两大免疫抑制性疾病。
Porcine reproductive and respiratory syndrome(PRRS) and porcine circovirus type 2(PCV-2) are two immunosuppressive diseases which are greatly endangering swine in recent years.
据阿克力博士称，我们居家最糟糕的“隐形杀手”细菌要数那些我们看不到也闻不到但是却可以在七个小时内从单一的个体繁殖成成千上万的细菌群了。
According gto Dr Ackerley, the worst bacteria in our homes are 'silent killers' that we cannot see or smell but that can multiply from a single bacterium to several million in just seven hours.
“关键在于：你能不能找到好的干细胞群然后加以繁殖。”她说。
'the key is whether you can find a good stem cell population and expand it,' she said.
有益菌群大量繁殖形成的优势菌群可抑制或杀灭大肠杆菌及病菌的繁殖，达到防病的效果。
The beneficial bacterium multiply advantage bacterium group, which may restrain or kill bacillus coli and germs' breeding to reach the effect of preventing disease.
这意味着，今天所有的美洲野牛都是由同一小群祖先所繁殖而来。
This suggests that all present-day bison are descended from a very small group of animals .
LCT的猪群来自于近南极的奥克兰岛且在防鸟的，不带致病病原体的设施中繁殖。
LCT's pig herd is derived from the Sub-Antarctic Auckland Islands and bred in bird-proof pathogen free facilities.
你可能认为这很残酷和不公，但领头的年轻雄狮同时还是这群雌狮子的兄弟，它必须这么做，不然就会近亲繁殖。
You might think this is cruel and unfair but the adolescent male of this pride is also the brother of these lionesses so he needs to go, otherwise inbreeding occurs.
试验表明，这种微生物有机肥料施入土壤后能够使拮抗菌迅速繁殖，在土壤中形成优势群。
Proved by experiments, the microbial organic fertilizer enables the antagonistic bacterium to quickly breed and form a preponderant group in soil after being applied to the soil.
以上措施最大限度地发挥了窖泥作用，有利于微生物群的固定和繁殖，为百年老窖打下了基础。
The above measures could make full use of pit mud and were helpful for the fixation and the propagation of microbes, which made solid foundation for the development of centurial aged pits.
为了繁殖出这种特别吃得少，特别能下蛋，特别能抗病的“最有战斗力”的品种鸡，你需要更大的鸡群。
And to breed the most productive hens which convert their feed most efficiently into eggs and are most resistant to disease, you need large flocks.
心皮是植物的繁殖器官，性状相对稳定，是划分类群和阐明演化关系的重要依据。
Carpel is the reproductive organ of plant and its character is relatively stable, so it is an important basis of treating taxa and explaining evolutionary relationship.
但牙周袋菌群一旦失调，密螺旋体会大肆繁殖并成为牙周疾病的主要致病菌。
However, once flora imbalance occurs in the periodontal pocket, oral treponema will reproduce rapidly and becomes the main pathogenic bacteria of periodontal disease.
它们有时候会繁殖下一代，有时候则只是复制基因，直到时机成熟才将一大群子子孙孙打包送出去。
Sometimes they get in and get busy making babies. Other times they copy their chromosomes but hold off parceling them out to their army of offspring until the time is right.
它们有时候会繁殖下一代，有时候则只是复制基因，直到时机成熟才将一大群子子孙孙打包送出去。
Sometimes they get in and get busy making babies. Other times they copy their chromosomes but hold off parceling them out to their army of offspring until the time is right.
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