Twelve fat-rump sheep was divided randomly into 3 groups which consist of 4 each,and fed with 3 levels of metabolizable energy(120,100 and 80% of recomended content of NRC(1978)).

 
  • 選擇體重年齡相近,經(jīng)產(chǎn)大尾寒羊空懷母羊12只,隨機分成3組,每組4只,分別按NRC(1978)推薦綿羊維持代謝能需要量的120%25,100%25和80%25供給。
今日熱詞
目錄 附錄 查詞歷史
国内精品美女A∨在线播放xuan