Mensuration of Productive Performance for Dorper sheep,Small-tail Han Sheep and Their Grossbred F_1

The experiment measured the productive performance for Dorper sheep,Small-tail Han sheep and their crossbred F_1.The results indicated that the birth weight of increased 22.27% and 34.03% than Dorper sheep and Small-tail Han Sheep respectively(P0.01).During 0-60days the average daily gain weight of the crossbred F_1 increased 117g than Small-tail Han Sheep(P0.01).The chest girth of the crossbred F_1 enhanced 0.13cm and 2.75cm than Dorper sheep and Small-tail Han Sheep from 0-12months respectively(P0.05).Lambing rate of non-multifarious ewes enhanced 36.32% than that of Dorper sheep.Slaughtering percentage of 5-month the crossbred F_1 was 2.6% higher than that of Small-tail Han Sheep,and net meat rate was enhanced 10.93% than that of Small-tail Han Sheep.