From birth to 3-4 weeks of age, the piglets are with the sow in the farrowing house.
小猪从出生到3 -4周大的时候，这段时间小猪和母猪是在产房里度过的。
At first, they live only on milk from their mother. By three weeks of age, they start eating meat.
开始，幼崽只喝妈妈的奶，到了三周大时，它们开始吃肉。
We obtained the best regression model between weeks of age and body weight, muscle IMP content.
应用回归分析建立了泰和乌骨鸡肌肉IMP含量依周龄和体重的最佳线性回归方程；
The SCA member does not actually transfer puppies to new homes until they are at least 8 weeks of age.
适应地利用注册来限制。SCA的成员不能在狗狗8周以前移交狗狗。
A total of 156 male mice at 5-weeks of age (74 control mice and 82 LID mice) received tumor transplants.
总共15 6只5周龄的雄鼠（其中82只LID小鼠，74只对照鼠）接受了肿瘤移植。
But 55 percent of the mice in the study died by 25 weeks of age, which would be the equivalent of age 30 in humans.
但是这些小鼠中的55%在随后的25个星期中死亡，相当于人类的30岁水平。
By two weeks of age, the pups can waddle, and about a week after that, they may come out of the den for the first time.
两周大时，就可以摇摇晃晃地走路；再过一周，就可以第一次走出兽穴。
Young quetzals can fly at about three weeks of age, but males do not begin to grow their long tail plumes for three years.
还长成的凤尾绿咬鹃在三周大时就可以飞了，不过，雄鸟在出生后的三年之内不会长出长长的尾羽。
The offspring also showed signs of insulin resistance, a condition that precedes the early onset of type-2 diabetes, as early as 3 weeks of age.
这些子代还显示出胰岛素抵抗的征象，这是早发2型糖尿病的征兆，最早可在出生后3周发生。
Early infant diagnostics ensure that babies can be identified as HIV positive or negative by 6 weeks of age, rather than waiting until age 18 months.
对婴儿早期诊断，可确定6周年龄的婴儿为HIV阳性或阴性，而不用等到18个月年龄才可确定。
A puppy should never be adopted before six weeks of age, the interaction occurring within the litter at that time is too critical to a puppy's development.
一只幼犬永远不应该在满六周以前被带去新家，在这段时间内幼犬和他的兄弟姐妹之间的相互影响对于他的成长来说是必不可少的。
When growth performance was measured to the same chronological age (10 weeks of age) feed intake and growth rate increased with each week increment in weaning age.
在相同周龄(10周龄)测定仔猪生长性能，随断奶日龄的增加，采食量和生长性能都得到提高。
Body weights at 1 ~ 10 weeks of age, body measurements, slaughter performance and breast muscle qualities of at 10 weeks age between Zhedong goose and Jurong Siji goose were studied.
对浙东白鹅和句容四季鹅1 ~10周龄体重和10周龄体尺、屠宰性能及胸肌肉品质等性状进行研究。
Preferably, said treatment or prevention comprises administering three oral doses of a safe and effective amount of the composition to an infant within 8-20 weeks of age at the time of dose 1.
对上述疾病的治疗或预防，8-20周的婴儿最好根据安全有效用药剂量，口服三次，按剂量1规定的时间服用。
When the rats' offspring were six weeks and three months of age, scientists gave them the choice of eating regular food (the chow) or the same "junk food" certain mothers ate.
当老鼠子女六个星期或三个月大的时候，科学家分别提供正常的食物(鼠粮)或他们母亲曾吃过的垃圾食品供他们选择。
It has not only been observed in infants and in newborns, but also in fetuses of 12-14 weeks' gestational age.
不仅婴儿和新生儿有呵欠行为，就连12 -14周的胎儿也会打呵欠。
All Ferrets are white when born. Their color will begin to appear around the age of 3 weeks.
所有雪貂生下来都是雪白的。他们的花纹将在出生后三周左右出现。
This measurement called the fundal height is used to determine fetal age and should equal in centimeters the number of weeks you are pregnant (within 2 centimeters ).
这一尺寸被称为宫高，是用来判定胎龄，并且宫高的厘米尺寸应该跟你怀孕的周数等同（在两厘米的误差范围内）。
This measurement, called the fundal height, is used to determine fetal age and should equal in centimeters the number of weeks you are pregnant (within 2 centimeters ).
这一尺寸被称为宫高，是用来判定胎龄，并且宫高的厘米尺寸应该跟你怀孕的周数等同（在两厘米的误差范围内）。
Babies start smiling as newborns: Most doctors believe that real smiles occur when babies are awake at the age of four-to-six weeks, but babies start smiling in their sleep as soon as they're born.
婴儿从出生就会笑：大多数医生认为，4 - 6周的婴儿醒着时会发出真正的笑容，但其实，婴儿一出生，就会在睡着的时候笑。
Over a few weeks in the summer we organized a series of play sessions with some of these absentee gamers, a group ranging in age from 25 to 35.
在暑假的数周时间里，我们组织这些离去的玩家开展系列玩乐活动，这些玩家的年龄介于25至35岁之间。
In the study, the authors examined 20 preterm infants with a mean gestational age at birth of 29 weeks (range 26-35) and who were otherwise medically stable.
在这项研究中，作者观察20个平均出生胎龄在29周(从26 - 35周不等)的早产儿，他们都必须是病情稳定。
In August, the average time unemployed for those 55 and older was slightly more than 39 weeks, according to the Labor Department, the longest of any age group.
根据劳动部调查表明，八月份55岁及五十五岁以上的失业者平均需要39周多找到新的工作，相比别的年龄段失业人员，这一年龄段失业人员重新找到工作的时间最长。
These skin reactions are more likely to happen within the first 2 to 8 weeks of treatment and occur most often in children between 2 and 16 years of age.
这些皮肤反应很可能在治疗的前2- 8周发生。经常发生在2 - 16岁的儿童身上。
FINDINGS: we included three variables that were predictive of poor outcome at 6 months in our model: age, preceding diarrhoea, and GBS disability score at 2 weeks after entry.
结果：在我们的模型中，三个变量预测6个月内预后不佳：年龄、以前的腹泻、和登记后2周内的GBS残疾评分。
In our day and age - a time of 24 hour news cycles, and constant communication - people expect the transformation of the region to be resolved in a matter of weeks.
在今天这种24小时不间断的新闻以及通讯时代，人们期望这种变革在几个星期就实现。
In our day and age - a time of 24 hour news cycles, and constant communication - people expect the transformation of the region to be resolved in a matter of weeks.
在今天这种24小时不间断的新闻以及通讯时代，人们期望这种变革在几个星期就实现。
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