不同杂交组合肉羊生产性能和胴体性状的研究

Study of Production Performance and Carcass Traits for Different Cross Combination in Meat Sheep

本试验以无角道塞特、萨福克、德国美利奴为父本与夏寒F1代、夏寒F2代分别进行杂交,共分6个杂交组合,每个杂交组合20只母羊,每组分为4个重复,每个重复5只羊,同组各重复之间体重差异不显著。杂交后代集中育肥3个月,6月龄时进行屠宰,对各组羊生产性能、胴体性状进行测定。结果表明:整体来看各组羊与夏寒F2代杂交好于与夏寒F1代杂交,日增重德夏寒最高,料重比德夏寒最低,体型指标德夏寒最高,萨夏寒组最低,差异不显著(P>0.05)。净肉重各组羊与夏寒F1代杂交稍大于与夏寒F2代杂交后代,代间差异显著(P<0.05),胴体产肉率差异不显著(P>0.05),肉骨比差异显著(P<0.05),眼肌面积F1代与F2代差异不显著(P>0.05),F1代间及F2代间差异极显著(P<0.01),且以道夏寒最高,萨夏寒次之,德夏寒最低。结论:德夏寒杂交羊生长快、肉用体型好;道夏寒杂交羊产肉力高、肉质优。

The trial of Dorset, Suffolk, Germany slaves crossing the beautiful summer and winter FI, F2 cold summer were hybridized is divided into six crosses, each crosses 20 ewes, each divided into four repeat, every repeat has five sheep. And there was no significant among groups weight. The focus group sheep fattening three months and slaughtered for testing when they are six months old .Test of the group sheep production performance, carcass traits. The results showed： Overall F2 hybrid sheep better than FI, and the average daily gain to the highest Dexia cold, feed than cold Dexia, which is the lowest figure in both indicators is F1 or F2 cold Dexia Group is the highest Saft is the lowest group, but the difference was not statistically significant. Dressing weight slightly larger than F1 F2, inter-generational difference was significant. Carcass meat production rate of six groups no significant difference, Meaty Bone than six groups, there were significant differences. Ocular area F1 and F2 no significant difference, between F1 and F2 difference were significantly and Harcourt Road to maximum cold cold times Sachs, Dexia cold minimum Conclusion： Germany slaves sheep faster than the growth of other sheep, meat type, and Dorset sheep have the high production of meat.