最好的牛肉来自食用牛和小母牛。
The best beef is obtained from steers and heifers (female cows that have not calved).
我们发现了一些动物外壳遗骸，以及人类食用牛的证据。
And we found remains of animal enclosures, as well as evidence for the consumption of cattle.
格兰丁发现机器施加的深层压力让食用牛放松，她还发现对自己也有同样效果。
Grandin noticed that the deep pressure it exerted calmed the steer down, and she discovered it had the same effect on her.
牛：一种牛属哺乳动物，包括母牛、食用牛、公牛，为食用肉和奶制品而饲养。
Any of various mammals of the genus Bos, including cows, steers, bulls, and oxen, often raised for meat and dairy products.
苏联20年前解体时，俄罗斯的牛肉生产也随之瓦解，菜牛(又译肉用牛、食用牛)的饲养和管理项目分崩离析。
Twenty years ago, when the Soviet Union collapsed, so did beef production in Russia. Breeding and management programs for beef cattle fell apart.
癌细胞是在酸性环境中繁衍的，以肉为基本饮食的体质是酸性的，因而食用鱼类及少量鸡肉是较食用牛、猪为妥。
C. Cancer cells thrive in an acid environment. A meat-based diet is acidic and it is best to eat fish, and a little other meat, like chicken.
癌细胞是在酸性环境中繁衍的，以肉为基本饮食的体质是酸性的，因而食用鱼类及少量鸡肉是较食用牛、猪为合适的。
Cancer cells thrive in an acid environment. A meat-based diet is acidic and it is best to eat fish, and a little other meat, like chicken.
用于食用的牛和鸡经常被喂食会传播病毒的饲料，该病毒引起这种疾病。
Both cattle and chickens raised for meat are often fed the type of feed that transmits the virus that causes the disease.
其他三种动物的区别在于它们食用的低处枝叶和高处茎杆的比例不同：斑马吃茎杆最多，角马吃叶子最多，而转角牛羚则介于两者之间。
The other three species differ in the proportion of lower leaves and higher stems that they eat: zebras eat the most stem matter, wildebeests eat the most leaves, and topi are intermediate.
食用含有脑组织的牛制品是该病原体向人传播的最可能途径。
Consumption of bovine products containing brain tissue is the most likely route for transmission of the agent to humans.
我们必须努力提高牛的品级，使之达到所要求的食用肉标准。
We must try to upgrade our cattle to the required standard of meat.
事实上没有一个克雅氏病案例与食用养殖鱼类有关，但并不能保证牛的副产品饲养鱼是安全的。
The fact that no cases of Creutzfeldt Jakob disease have been linked to eating farmed fish does not assure that feeding rendered cow parts to fish is safe.
他们养着马和牛，前者供乘骑，后者供食用。
They keep horses and cattle, the former for riding, the latter for food.
当它们长大为成年的豹子后，就象保护中心的其他大型猫科动物一样，每周要食用18公斤（40磅）的肉，包括混合的马、牛和兔肉。
When they are fully grown the leopards will, like all the other big cats at the centre, eat up to 18kg (40lb) of meat a week, including a mixture of horse, calf and rabbit meat.
许多韩国人担心美国牛染有疯牛病，食用不安全。
Many South Koreans fear that American beef is not safe from mad cow disease.
他们养着马和牛，前者供乘骑，后者供食用。
The keep horse and cattle, the former for riding, the latter for food.
大陆有些地区有较丰富的植物可食用，但那时没有人在这片土地上种植庄稼。这里也没有能被家养的动物，比如牛和羊。
S1: Some parts of the continent were richer in vegetable foods, but the land contained no cultivated crops, or animals that could be domesticated, such as cattle and sheep.
人们食用药草，牛也一样。
人类可能因食用感染狂牛症的牛只脑脊随组织而罹病。
B. Humans can contract BSE by eating brain or spinal tissues from infected cattle.
人类可能因食用感染狂牛症的牛只脑脊随组织而罹病。
B. Humans can contract BSE by eating brain or spinal tissues from infected cattle.
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