陶赛特羊与青海半细毛羊杂交试验

试验在高寒牧区天然草地放牧条件下 ,测定陶×半细杂交一代羊出生到 4月龄和 6月龄的生长发育指标 ,结果表明 :在青海高原严酷的生态环境条件下 ,杂交一代羔羊生长发育快于青海半细毛羊 ,4月龄活重为 2 2 .73kg ,6月龄活重为 2 7.96kg ,分别比青海半细毛羔羊提高 3 .0 2kg、3 .64kg(P <0 .0 1)。体长、体高、胸围、胸宽、管围和尻宽显著高于青海半细毛羔羊 (P <0 .0 1)

Crossing Experiment between Dorset Down and Qinghai Senifine-wood sheep

Under grazing Condition in native grassland of paramo pastoral area,the growth and derelopment indexes were determeined in first filial generation of Dorset down and Qinghai semifine wool sheep at the age of 4 and 6 months The results showed trat under the Condition of serious ecological environment in Qinghai Platean,the growth and develepment of fivsit filial generation larnb were faster than that of Qinghai Semifine wool sheep,liveweight at the age of 4 months was 22.73kg,that of age of 6 months was 27.96kg,improved 3.02kg and 3.64kg more than that of Qinghai Semi wool sheep,resp.(P<0.01).The indexes such as body tength,withere height,chest girth,chest width,cannon circumferend and thurl widtn was signifieantly more than those in the lamb of Qinghai semi wool sheep(P<0.01).