12月龄藏羊补饲育肥效果分析

Analysis of Supplementary Feeding Effects on 12-Month-OldTibetan Sheep Growth

摘要:

为确立放牧藏羊有效补饲时间,于2022年10月1日至2022年12月31日(试验一),2023年1月1日至2023年3月31日(试验二)开展不同时段补饲试验。试验一结果表明：试验组羊在90 d试验期中总增重4.50 kg,平均日增重50 g,对照组总增重-3.12 kg,平均日增重-34.4 g,差异极显著 (P <0.01)。试验二结果表明：试验组羊在90 d试验期中总增重3.9 kg,平均日增重43.33 g,对照组总增重-3.59 kg,平均日增重-39.88 g,差异极显著 (P <0.01)。说明： “放牧+有效补饲”生产模式是甘南高寒牧区草原畜牧业从“靠天养畜”向“科学牧养”转型发展,产业提质增效的有效途径。

Abstract:

To determine the optimal supplementary feeding time for grazing Tibetan sheep, feeding experiments were conducted during two different periods: from October 1, 2022, to December 31, 2022 (Experiment 1), and from January 1, 2023, to March 31, 2023 (Experiment 2). The results of Experiment 1 showed that the experimental group of sheep gained a total weight of 4.50 kg over the 90-day trial period, with an average daily gain of 50 g, while the control group had a total weight loss of -3.12 kg, with an average daily loss of -34.4 g. The difference was highly significant (P < 0.01). Experiment 2 revealed that the experimental group of sheep gained a total weight of 3.9 kg over the 90-day trial period, with an average daily gain of 43.33 g, whereas the control group had a total weight loss of-3.59