微生物发酵马铃薯部分代替精饲料对奶水牛泌乳性能和血液生化指标的影响

Effects of Partial Replacement of Concentrate Feed by Microbial Fermented Potato on Lactation Performance and Blood Biochemical Indices of Dairy Buffalo

采用单因素分析法,选择63头体况良好、5~8胎、平均日泌乳量(7.47±2.44)kg的健康产奶中后期奶水牛,研究利用微生物发酵马铃薯饲料部分代替精饲料对育成奶水牛生长发育和血液生化指标的影响。结果表明,试验期间各组泌乳量比试验前均有所下降(P>0.05),水牛奶中乳蛋白质率、乳脂肪率、乳总固形物率和乳糖率差异均不显著(P>0.05),血液中总蛋白、尿素氮、空腹葡萄糖均无显著差异(P>0.05);在该试验中相同的投入产出最高的是对照组(1∶2.48)。用微生物发酵马铃薯替代精料饲喂奶水牛对其泌乳性能乳品质及血液生化指标均无显著影响,经济效益也不理想。

By using single factor analysis method,63 healthy buffaloes in middle and later stage of milk production which were in good condition,5-8 parities,with average daily milk yield of(7.47±2.44)kg were randomly divided into 3 treatments to study the effects of microbial fermented potato feed instead of concentrate feed on the growth and development and blood biochemical indices of dairy buffaloes.The results showed that the milk yield of each group during the experiment was lower than that before the experiment(P>0.05).There was no significant difference in milk protein rate,milk fat rate,total milk solids rate and lactose rate in buffalo milk(P>0.05).There was no significant difference in blood total protein content,urea nitrogen content and fasting glucose content(P>0.05),which in control group were the highest at the same input-output ratio in this experiment(1∶2.48).Feeding milk buffalo with fermented potato instead of concentrate had no significant effect on its lactation performance,milk quality and blood biochemical indices,and its economic benefit was not ideal.