熊猫每胎产仔一、二只。
小笠原群岛外,一只虎头鲨即将产仔。
A sand tiger shark off the Bonin Islands will soon give birth.
杜洛克的体况在产仔时更容易掉膘。
Duroc are more likely to be over conditioned at farrowing time.
那窝产仔数肯定会低一些了? ?
每年夏季雌性藏羚羊迁徒产仔。
The females migrate north every summer to give birth to their offspring.
鲸鱼在每年的这个时候产仔。
有些动物关在笼子内就不产仔。
那窝产仔数肯定会低一些了?
野生动物在野外产仔。
那是母羊产仔的季节。
他们是通过下蛋,还是产仔来繁殖后代的呢?
不同年份同一东北虎个体产仔行为无明显差异。
C There was no obvious difference in the behaviour of the same kittening Amur tiger between different years.
产卵或产仔的个体。
随后,老鼠们回归了原始的生活环境,并生长产仔。
The mice were then returned to normal conditions, where they grew up and had offspring.
不过小母牛,特别是还没有产仔的小母牛,有个专门的名字。
But a young female cow, especially one that has not had a calf yet, has a special name.
为了获得一个好的产仔指数,它的基本拿起任何回报的服务。
In order to obtain a good farrowing index, it's essential to pick up any returns to service.
大象孕期长达两年,预计Panang将在十一或十二月产仔。
Elephants' pregnancy lasts for two years and Panang is expected to give birth in November or December.
我认为丹育公司会继续在不考虑道德层面的前提下关注产仔数。
I think DanAvl continues to focus on litter size without taking the ethical side into account.
而现在已经有了很好的设备来支持现代品种增加的窝产仔数量。
And there is equipment available now to sustain the increased litter sizes modern genetics are affording us.
结果:处理的8只雄性树鼩中,6只具有生育能力,产仔树鼩11只。
Result: 6 of the 8 treated male tree shrews showed the generational ability, and 11 baby tree shrews were born.
这些动物和以前的任何生物形式都不同,因为它们产仔并用奶水喂养它们。
These animals were different from all life forms in the past, because they gave birth to young baby animals and produced milk to feed them.
猪胚胎死亡直接影响着母猪的产仔数,并进而影响着养猪生产的经济效益。
Pig embryonic death lowers the litter size of female pig, and further the economical benefits of pig production.
遇到失败绝不要一走了之,相反的,为其隐藏的资产仔细并有想像力的研究。
Never walk away from failure. On the contrary, study it carefully and imaginatively for its hidden assets.
联合尺度检验法的结果表明:猪总产仔数和活产仔数的群体平均值分别为12 。
The results of joint scaling test showed that the population means for the total number born and the number born alive were 12.
本研究的主要目的:1)比较产仔限位栏与分娩圈栏系统对母猪行为活动的影响;
Objects of this study are: 1)to compare the effect on behaviour activities of sows in crate and in pen;
它揭示了,海龟从一个受保护的筑巢地孵化出来,到返回该处产仔,需要多长时间。
It reveals how long it takes for turtles hatched at a protected nesting site to return to that site to breed.
另一种可能是,这种这种发生在产仔之后的“神经修剪”,实际上对于空间学习有好处。
It is also possible that the "nerve pruning" that takes place during motherhood actually benefits spatial learning, she speculates.
另一种可能是,这种这种发生在产仔之后的“神经修剪”,实际上对于空间学习有好处。
It is also possible that the "nerve pruning" that takes place during motherhood actually benefits spatial learning, she speculates.
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