摘要
本文以新疆呼图壁种牛场牧二场1984-2005年21年间(1995年资料由于遗失未统计在内)414头次西门塔尔牛的生产记录基础,利用SPSS(13.0)单因素方差分析过程,分析了不同产犊间隔之间305d奶产量的影响,结果表明:各水平间305d的产奶量的差异不显著(P>0.05),随着产犊间隔(310～460d)的延长,呼图壁种牛场牧二场泌乳西门塔尔牛305d的产奶量呈现下降趋势,其中产犊间隔在310～340h305d产奶量最高,而产犊间隔在431～460h最低。因此,合理的调控产犊间隔有利于提高牛群的产奶量。
According to 414 calving internal milk production records of Simmental cattle from second ranch in Hutubi herd farm between 1984 and 2005, and the effect of different calving intervals on 305-day milk yield were analyzed by One-way ANOVA. The results are summarized as follows： and the difference between other calving intervals were not significant （P〉0.05）. With the growth of calving interval, milk production was increased continuously, the cows calving interval in 310-340 day has the highest 305-day milk yield, and 431-460 day has the lowest 305-day milk yield. Therefore, the appropriate calving interval is favorable to increase the milk yield of cattle.
出处
《草食家畜》
2009年第3期59-61,共3页
Grass-Feeding Livestock
基金
新疆维吾尔自治区科技重大专项项目(编号:200731134)资助
