放牧条件下皮×哈杂交F1代与哈萨克羊羔羊屠宰性能及体尺性状相关性分析OA

To evaluate the adaptability of Pi×Ha hybrid F1 lambs to local feeding conditions and their meat production performance,this study selected six healthy 6-month-old male Pi×Ha hybrid F1 lambs(F1 group)and six Kazakh sheep lambs(control group)to compare their body weight,body measurements,and slaughter performance indicators.The results showed that there were no significant differences between the two groups in terms of body weight and body measurements(P＞0.05).Slaughter performance analysis indicated that the F1 group had slightly higher carcass weight,dressing percentage,and lean meat percentage than the control group,but the differences were not statistically significant.Correlation analysis further revealed that chest girth and chest width were significantly positively correlated with dressing percentage.The results suggest that under the same feeding conditions,the F1 group has slightly better meat production performance than the Kazakh sheep,demonstrating a certain level of adaptability to the local grazing environment and potential for improvement,and that chest girth and chest width can serve as important body measurement indicators for predicting lamb dressing percentage.