杜泊羊与小尾寒羊杂交后代屠宰性能和肉品质的研究

本研究旨在通过对屠宰性能、肌肉化学成分的检测，探讨杜泊羊与小尾寒羊杂交对后代屠宰性能及肉品质的影响，为选育优质肉羊品种提供理论依据。结果表明：从屠宰性能来看，杜寒F1和杜寒F2均继承了杜泊羊的优点，对小尾寒羊产肉率低的缺点有较大改善；从总体肉品质来看，杜寒F1和杜寒F2均继承了杜泊羊产肉多、肉质鲜美的优点，并且在肉色、嫩度、熟肉率、滴水损失、含钙量方面均优于小尾寒羊和杜泊羊。杜寒F2的肌肉嫩度、肉色指标均优于杜泊羊、小尾寒羊及F1代。

Investigation of slaughter performance and meat quality of hybrid offspring between Dorper sheep and Small Tailed Han sheep

The aim of this research is to explore the influence of hybrid offspring between Dor-per sheep and Small Tailed Han sheep on the slaughtering performance and mutton flavor by the de-tecting the slaughter characteristics and chemical composition of muscle, in order to provide a theoretical basis for the breeding selection of sheep.The results showed that： ① For the slaugh-ter performance, D-H F1 and D-H F2 have inherited the advantages of Dorper sheep, greatly improv-ing the low rate of meat production of Small Tailed Han sheep. ② For the overview of meat quali-ty, D-H F1and D-H F2 have inherited the advantages from Dorper sheep with high production and high quality of meat. And flesh, tenderness, cooking loss, drip loss, calcium concentration are all bet-ter than Small Tailed Han sheep and Dorper sheep. The muscle tenderness, flesh color indicators of D-H F2 are better than Dorper sheep, Small Tailed Han sheep and D-H F1.