纳米级液体复合维生素氨基酸对奶牛产奶量的影响

Effect of nanoscale liquid multivitamin- amino acids on milk yield of dairy cows

为了研究纳米级液体复合维生素氨基酸对奶牛产奶量的影响,试验选择体重、胎次、产奶量基本一致的奶牛30头,随机分为对照组和试验组,每组15头。对照组饲喂基础日粮,试验组在基础日粮中添加纳米级液体复合维生素氨基酸15 m L/头。结果表明:第12,42天试验组奶牛产奶量显著高于对照组(P<0.05)。说明添加纳米级液体复合维生素氨基酸能显著提高奶牛产奶量(P<0.05),且效果稳定。

To study the effect of nanoscale liquid multivitamin - amino acids on milk yield of dairy cows, thirty dairy cows with basically same body weight, parity and milk yield were selected and randomly divided into an experimental group and control group of 15 cows each. The con- trol group was fed basal diet, and the experimental group was fed based diet added with 15 mL per cow of nanoscale liquid multivitamin - amino acids. The results showed that the milk yield of the experimental group was significantly higher （ P 〈 0.05 ） than that of the control group from 12 d and 42 d. The results indicate that nanoscale liquid multivitamin - amino acids can significantly improve （ P 〈 0.05 ） the milk production, and its effect is stable.