Compared with the open pattern,raising density is ncreased,producution of layers is improved,body weight of broilers is gained,mortality is reduced and feed efficiency is enhanced as well.

 
  • 与敞开式相比较,增加了实验密度,蛋鸡提高了产蛋量,肉鸡增加了个体重,鸡只死亡率下降,饲料得益率提高。
今日热词
目录 附录 查词历史