摘要
采用对照试验设计,在北京一奶牛场选择40头奶牛,研究赐力健对奶牛生产性能、免疫力、抗热应激能力和受胎率的影响。结果表明:赐力健可以提高产奶量、增强抗热应激能力、降低体细胞数,明显提高受胎率,对提高免疫球蛋白含量没有作用。
A contrast design experiment was conducted to investigate the effects of powermix on milk production, immunity, ability to heat stress and pregnancy rate of dairy cows. Fourty dairy cows were selected from a dairy farm in Beijing.The results showed that powermix could increase milk production, improve the ability to heat stress, decrease somatic cell count（SCC）, increase pregnancy rate significantly, and there is no effect on increase content of immunoglobulin.
出处
《中国奶牛》
2009年第12期31-34,共4页
China Dairy Cattle
