甘加羊种质特性分析及利用

Analysis and Utilization of Germplasm Characteristics of Ganjia Sheep

摘要:

本试验对甘加羊的生理性指标、生产性能、羊毛品质、繁殖性能进行了系统的研究分析。结果表明甘加羊对高寒缺氧特殊环境有良好的适应能力,心肺器官功能较强,呼吸、脉搏频率较快,成年公羊平均体重为56.80 kg、体高为74.65 cm、体长80.35 cm,成年母羊平均体重46.62 kg,体高71.96 cm、体长79.34 cm、成年公羊平均产毛量为1.38 kg,成年母羊平均产毛量为1.13 kg；成年公羊毛辫长平均为30.26 cm,成年母羊平均为29.18 cm；成年公羊净毛率平均为66.37%,成年母羊平均为68.69%。甘加羊在终年放牧的条件下,成年公羊宰前体重为47.70 kg,胴体重为24.03 kg,屠宰率为50.38%,净肉率为33.6%。成年母羊宰前体重为42.6 kg,胴体重为20.85 kg,屠宰率为48.86±3.10%,净肉率为32.95%。通过对各项生产性能的分析,表明甘加羊具有优良遗传特性。

Abstract:

The physiological indexes,production performance,wool quality and reproductive performance of Ganjia sheep were systematically studied and analyzed in this experiment.The results showed that Ganjia sheep had a good adaptability to the special environment of high cold and hypoxia.The function of heart and lung was stronger,and the frequency of respiration and pulse was faster.The average body weight,height and length of adult ram were 56.80 kg,74.65 cm and 80.35 cm respectively,the average body weight of adult ewes is 46.62 kg,the average body height is 71.96 cm,the average body length is 79.34 cm,the average wool yield of adult rams is 1.38 kg,the average wool yield of adult ewes is 1.13 kg,and the average length of Braid of adult rams is 30.26 cm,the average of adult ewes was 29.18 cm,the average net wool rate of adult rams was 66.37%,and that of adult ewes was 68.69%.Under the condition of yearround grazing,the body weight before slaughter and carcass weight of Ganjia sheep were 47.70 kg,24.03 kg,the slaughter rate was 50.38% and the net meat rate was 33.6%.The body weight before slaughter and carcass weight of adult ewes were 42.6 kg and 20.85 kg,respectively.The dressing rate was 48.86±3.10% and the net meat rate was 32.95%.The analysis of production performance showed that Ganjia sheep had good genetic characteristics.