中国饲料添加剂信息网-新闻中心 关键词 ：中草药；卵黄抗体；气雾剂；蛋鸡；传染性支气管炎 [gap=974]Key Words: Chinese herbal medicine; yolk antibody; aerosol; egg hens; infectious bronchitis
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I've gone native and now keep three egg-laying hens in my backyard.
我已经彻底变成了本地人，在后院里养了三只下蛋的鸡。
They have been know to breed at younger ages but egg binding in hens can occur if this happens.
他们已经知道，滋生在年龄更小，但具有约束力的鸡蛋在蛋鸡可以发生，如果发生这种情况。
The typical cage in today's egg factory holds four or five hens on a 12- by 18-inch floor area.
在今天的鸡蛋工厂，一个典型的笼子大概在十二到十八英寸的面积中养了大约四或五只母鸡。
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