甘南藏绵羊冷季补饲试验研究

冷季羊只体重下降乃至乏弱死亡是困扰高寒牧区草地畜牧业生产的主要问题之一,对高寒牧区藏羊进行90 d的保膘试验研究,结果表明:1岁试验组活重损失为3.40 kg,而对照组为5.23kg,试验组比对照组少减重1.83 kg,两者之间存在极显著差异(P<0.01);2岁试验组活重损失为4.34 kg,而对照组为7.23 kg,试验组比对照组少减重2.89 kg,两者之间存在极显著差异(P<0.01);3岁试验组活重损失为4.68 kg,而对照组为8.50 kg,试验组比对照组少减重3.82 kg,两者之间存在极显著差异(P<0.01);成年试验组活重损失为4.65 kg,而对照组为9.24 kg,试验组比对照组少减重4.59 kg,两者之间存在极显著差异(P<0.01)。

Study on Supplementary Feeding Experiment for Gannan Tibetan Sheepin Cold Season

Weight loss or weak death of sheep in Cold season is one of the main problems that prevent husbandry industry developing in alpine pasture.90 d fat keeping experiment showed that for 1-year-old experimental group body weight loss was 3.40kg,the loss of control group was 5.23kg,the loss of experimental group was less than control group with 1.83kg,the difference was significant（P 0.01）.For 2-year-old experimental group body weight loss was 4.34kg,the loss of control group was 7.23kg,the loss of experimental group was less than control group with 2.89kg,the difference was significant（P0.01）.For 3-year-old experimental group body weight loss was 4.68kg,the loss of control group was 8.50kg,the loss of experimental group was less than control group with 3.82kg,the difference was significant（P 0.01）.For adult experimental group body weight loss was 4.65kg,the loss of control group was 9.24kg,the loss of experimental group was less than control group with 4.59kg,the difference was significant（P 0.01）.