The Reaction of Weight of Tan-Sheep to Grazing Intensity in Short Term

The research of effect of grazing intensity on weight, daily gain and production of per grassland was carried on losses plateau. The results as follows: with the grazing intensity in creasing, the trend of weight as follws: 240 sheep·d/hm\+2480 sheep·d/hm\+2·780 sheep·d/hm\+2, but, daily gain among three groups wasn't notability (P0.05). Daily gain was declined with the time of grazing lasted. Production of per grassland was notability (P0.01) among three groups, and production of 780 sheep·d/ha was highest, which was 76.3 kg/hm\+2·90d.