您要查找的是不是：
- parent breeding layer 蛋种鸡
- The positive rates of CIA in grandparent breeding stocks, parent breeding stocks and current breeding stocks investigated were 50. 0%, 80. 0% and 93. 7% respectively. 其被检祖代场、父母代场、商品代场CIA阳性率分别为50.;0%25、80
- Immune experiment of parental breeding birds and commercial chickling were studied in this experiment. 摘要试验对患沙门氏菌病的父母代种鸡和商品代雏鸡进行了免疫试验研究。
- Additional, fugacious or parental breeding manner is abhorrent, educational way is simple, rough, the child forms clear dispute idea hard. 另外，父母教养态度无常或不一致，教育方式简单、粗暴，孩子难以形成明确的是非观念。
- The court is acting in loco parent. 正以家长地位行为的法院。
- The islanders are a strong breed of people. 这些岛上的居民是一种体格强壮的人。
- Of this breed we can make short shrift. 这个品种，我们能很快解决。
- Being a parent can be hard work. 当父母可是件辛苦的事。
- Spaniel is a breed of dog with large ears. 西班牙猎狗是一种长着大耳朵的猎狗。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
- Greed is the parent of many evils. 贪婪是万恶之根源。
- Wild animals don't breed well in captivity. 野生动物圈养时不好繁殖。
- The firm will be incorporated with the parent company. 这家公司马上就要同总公司合并。
- The inner layer of the wall of a spore. 孢子内壁孢子壁的内层
- Birth is much, but breeding is more. 出身重要，教养更重要。
- There is a fine layer of dust on the desk. 桌子上有一层薄薄的尘土。
- Mr Johnson's has decided to merge with the parent firm. 约翰逊先生的公司已决定和母公司合并。
- Many animal breed in the spring. 很多野兽在春天繁殖。
- The family must come together for the parent silver wedding. 全家必须团聚，以庆祝父母的银婚。
- Random mating within a breeding population. 自由交配在一个育种群中自由交配
