不同导血水平对夏南牛生长发育的影响

Different Blood lead Levels of XiaNan Bovine Growth and Development of impact

本研究把夏南牛各代次、各年龄段牛与南阳牛之间体重做了比较分析;同时与原保留对比试验组的含夏洛来牛血50%和25%的两组横交牛进行比较,结果表明:新品种牛公牛的0、6、12、18月龄四个年龄段与南阳牛相比,体重差异均为极显著(P<0.01)。母牛在0、6、12、18、24、30、36月龄各年龄段与南阳牛相比,体重差异均为极显著(P<0.01);与两个对比试验组相比,0和6月龄时体重差异均为不显著(P>0.05)。

The weight of XiaNan Bovine in different generations and ages were compared with Nanyang Cattle and stabilized crossbreeding cattle which contain 50% and 25% Charolais blood respectively in this research. The result showed that the weight of bulls at the age of 0, 6, 12 and 18 months were higher than Nanyang cattle（ P 〈 0. 01）, while the weight of cows at the age of 0,6,12,18,24 and 30 months were higher than Nanyang cattle（ P 〈 0. 01）, compared with stabilized crossbreeding cattle, the cows at the age of 0 and 6 months had not significant effects on body weight（ P 〉0. 05）.