Table 1 Effect of overgrazing on the growth and immune organ indexes of sheep

153 ± 13^a

126 ± 9^b

0.042

22.8 ± 1.2^a

20.0 ± 1.2^b

0.047

0.43 ± 0.02^a

0.34 ± 0.03^b

0.004

3.36 ± 0.11^a

2.98 ± 0.03^b

0.010