Most dairy farmers must milk their cows two times a day, early in the morning and late at night.
许多奶农每天得给奶牛挤两次奶，时间分别在清晨和深夜。
The high prices encouraged the peasants to improve their animal husbandry techniques; for example, they began feeding their animals indoors in order to raise the milk yield of their cows.
高昂的价格鼓励农民提高畜牧业技术；例如，为了提高奶牛的产奶量，他们开始在室内喂养动物。
Cows, like humans, produce insulin-like growth factor in response to growth hormones and release it into the blood, and the protein makes its way into their milk.
奶牛和人一样，也能在生长激素的作用下分泌类胰岛素生长因子，这种蛋白质被释放到血液里，从而进入到牛奶中。
Radioactive iodine falls from the plume in rainfall and settles on the grass, where it's eaten by cows and builds up in their milk.
辐射物碘会随着降水中的烟雨降落，滞留在青草上，被牛啃吃时吸收从而进入牛奶。
It is these techniques that will allow, among other things, the creation of cloned herds of sheep and cows that produce medicines in their milk.
正是这些技术使人们可以创造能产出药物奶的羊和牛。
Dairy cows must calve every year to keep producing milk, and only half their offspring will be female.
奶牛必须每年哺乳才能产生牛奶，生下的小牛中只有一半是母牛。
Animals are designed to give milk that meets the needs of the infants of their species. Baby cows have completely different growth needs than baby humans.
动物会产奶是为了满足各种物种的幼崽的需要，奶牛幼崽和人类婴儿的成长需要肯定是大相庭径的。
To maximize milk production, dairy cows are kept pregnant their entire short life.
为了尽可能多的得到奶制品，母奶牛短暂的一生只得不停怀孕。
Traditional agricultural farmers are in the practice of administering a myriad of chemicals to dairy cows in an effort to increase their size and milk output.
传统的农民喂养奶牛的方式是通过大量的化学制品提升奶牛的体型和产奶量。
Radioactive iodine was deposited in pastures eaten by cows who then concentrated it in their milk which was subsequently drunk by children.
放射性碘积存在喂牛的牧草中，然后集中在牛奶中进而被儿童饮用。
Levels of iodine 131 entering the air can be very diluted, but if the iodine is deposited on grass eaten by cows, the cows will reconcentrate it in their milk by a factor of 1,000.
碘131进入空气后能被大量稀释，但是如果碘扩散到草地，草又被母牛吃掉，母牛会将碘的含量凝聚到1000倍。
Levels of iodine 131 entering the air can be very diluted, but if the iodine is deposited on grass eaten by cows, the cows will reconcentrate it in their milk by a factor of 1, 000.
碘131进入空气后能被大量稀释，但是如果碘扩散到草地，草又被母牛吃掉，母牛会将碘的含量凝聚到1000倍。
When fed to their cows and pigs, that high-quality corn produced far more milk and meat. As a result, the family bought more livestock - and the farm grew.
用高质量玉米喂养牛猪时，产出的牛奶和肉更多。
In the latest study, Italian scientists gave rats either cows' milk or asses' milk to drink on top of their usual food.
在最近的研究，义大利的科学家给老鼠平常的食物外，再给牠们喝牛奶或驴奶。
I have met women in India and Bangladesh who are taking out small loans to buy milk cows, rickshaws, thread and other materials to create a livelihood for themselves and their families.
我在印度和孟加拉见到了一些妇女，她们通过小额贷款买奶牛、人力车、细丝和其它原料，为她们自己和她们的家庭创造出一条出路。
Almost half said they called the cows on their farms by name and reported a higher milk yield.
几乎有一半称自己在农场上叫奶牛的名字，并且上报的产奶量更高。
Cows, like humans, produce IGF in response to growth hormone and release it into the blood, and the IGF makes its way into their milk.
就像人类一样，奶牛也为适应生长激素而产生IGF, IGF同时释放到了它们的血液和牛奶中。
I have met women in India and Bangladesh who are taking out small loans to buy milk cows, or rickshaws, or thread in order to create a livelihood for themselves and their families.
我在印度和孟加拉见到了一些妇女，她们通过小额贷款买奶牛、人力车、细丝和其它原料，为她们自己和她们的家庭创造出一条出路。
A saline solution needs to be prepared for the cows as their salinity has to be maintained, but they can't receive too much salt, or else the saltiness of their milk will be too high.
挤完以后还必须给奶牛准备一些含盐溶液，以保持牛奶的盐浓度。但奶牛也不能吸收过多盐分，否则牛奶中的盐分将会过高。
Cheeses made from goats' milk have a distinctive flavour due to the different fatty acids in the milk. Their fat and calcium content however, is similar to cows' milk cheeses.
由于含有不同的脂肪酸，羊奶奶酪具有独特的味道，然而其脂肪和钙含量与牛奶奶酪是几乎相同的。
Some farmers even say their cows give more milk when they hear Muzak!
有些农民甚至说他们的奶牛听缪扎克时可挤出更多奶！
He has a lot of cows and he sells their milk.
他有很多奶牛，他出售牛奶。
He has a lot of cows and he sells their milk.
他有很多奶牛，他出售牛奶。
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