The average Hb content was in high level and there was a great variable range,which indicated that more concentrate should be given during pregnancy and lactation period otherwise the nutrition need of ewe can not be met.

• 平均红细胞数虽然维持在较高水平,但血红蛋白含量的变动范围较大。 在妊娠和哺乳期应当给以精料补充,否则可能难以满足母羊特定时期营养代谢的需求。