Effect of supplementary feeding on growth performance and ruminal fermentation in winter season grazing sheep
The experiment was conducted with twenty-four grazing sheep divided into 3 experimental groups on the basis of body weights, i.e control, optimal and non-optimal groups to study the effect of optimized supplementation on growth performance and rumen fermentation characteristics of grazing sheep in winter. The sheep in control were grazing only, whereas the grazing sheep in the optimal were supplemented with 250 g of an optimal forage mix and 404 g of concentrate (1) the animals in non-optimal were supplemented with 465 g of concentrate (2). Weight gain rate in the optimal increased by 1.2 and 15.3％ as compared to that of the non-optimal and control group, respectively. Ruminal fermentation parameters were not significantly different between the optimal and non-optimal groups, however, they were significantly improved compared to the control. These results indicated that optimized supplementation strategies in winter were beneficial for markedly improving growth performance and rumen fermentation characteristics of grazing sheep.
sheep grazing supplementary feeding growth performance fermentation characteristics
H.L.Hu D.X.Lu Y.Z.Liu
Inner Mongolian Agriculture University Inner Mongolian, 010018 Huhhot, P.R.China;Inner Mongolian Aca Inner Mongolian Academy of Animal Sciences Inner Mongolian 010030 Huhhot, PR.China
国际会议
The 7tb International Symposium on the Nutrition of Herbivores(ISNH-7)(第七届国际草食动物营养研讨会)
北京
英文
960-964
2007-09-16（万方平台首次上网日期，不代表论文的发表时间）