It was found that lamb DLG correlated with their intakes positively(r = 0.72) and the critical period of reducing DLG for grazing lambs would be in late September.

• 而3月龄断奶羔羊受其影响较小(P>0.；05)。 放牧羔羊的日增重、在放牧初期与羔羊采食量呈显著正相关(r=0