鄂尔多斯细毛羊后备母羊牧草采食量测定

Determination of Feed Intake of Reserved Ewes of Erdos Fine Wool Sheep in Four Seasons under Grazing

为了探讨鄂尔多斯细毛羊后备母羊四季放牧采食情况,试验采用饱和烷烃法对鄂尔多斯细毛羊四季放牧采食量进行了测定。结果表明:鄂尔多斯细毛羊后备母羊春、夏、秋、冬四季放牧日采食量分别为(2.69±0.28)kg、(1.67±0.22)kg、(1.70±0.30)kg、(0.85±0.17)kg。其中后备母羊以春季采食量最高,显著高于(P<0.05)夏季和秋季,春、夏、秋三季均极显著高于冬季(P<0.01)。在放牧条件下,后备母羊应根据草场营养供给情况在冬季进行适当补饲。

In order to explore the feed intake of reserved ewes of Ordos fine wool sheep in four sea-sons, the test adopted saturated alkane method to determine the Ordos fine wool sheep grazing intake in the four seasons. The results show that the Ordos fine wool sheep reserved ewes＇ grazing intake in spring, summer, autumn and winter were 2. 69±0. 28 k g , 1. 67±0. 22 k g ,1.70 ±0. 30 k g ,0. 85± 0. 17kg respec-tively. The reserved ewes＇ intake in spring is the highest among the four seasons, significantly （P 〈0. 05） higher than that in summer and autumn, and that in spring, summer and autumn were significantly higher than that in winter（P 〈0. 01）. Under grazing, the Ordos fine wool sheep reserved ewes should be supple-mented feedstuff in winter according to the situation of pasture and nutrition.