陶藏杂一代羔羊与藏羔羊育肥效果比较研究

试验选择体重相近、健康良好的无角陶赛特羊与藏羊杂一代羔羊28只，藏羊羔羊15只进行育肥，测定其育肥效果。结果表明，试验组绝对增重、平均日增重和相对增重分别比对照组提高4．35kg、72．5g／d和23．87％，差异显著（P〈0．05）；试验组胴体重、屠宰率分别较对照组提高4．55kg和4．74％，差异显著（P〈0．05），试验组GR值和眼肌面积分别较对照组提高2．12cm。和0．7mm，但差异不显著（P〉0．05）；经济效益分析表明，育肥后杂一代羊较藏羊多收入174．0元／只。

Comparison of Fattening Effects on First Hybridized Generation of Poll Dorset Sheep and Tibetan Sheep

28 F1 Iambs of Poll Dorset sheep and Tibetan sheep which were similar in body weight and healthy and 15 Tibetan lambs were selected to measure the fattening effect. The results show that the absolute weight gain, daily weight gain and relative weight gain of the test groups respectively improved 4. 35kg, 72.5kg and 23.87% than that of the control group, with a significant difference （P〈0.05） ; the carcass weight and dressing weight of the test groups were improved 4.55kg and 4.74%, with a significant difference （P〈0.05） ; the GR value and eye muscle area of the test groups respectively raised 2.12 cm2 and 0.7 mm than that of the control, but the difference was insignificant （P〈0.05） ; the economic benefits analysis reveals that one fattening F1 lamb can gain extra 174 Yuan RMB than one Tibetan sheep.