饲粮磷水平对育成期崂山奶山羊生长性能、血清生化指标和磷排泄的影响

发布时间：2018-04-19 10:55

本文选题：育成期 + 崂山奶山羊　；参考：《动物营养学报》2017年07期

【摘要】：本试验旨在研究饲粮磷水平对育成期崂山奶山羊生长性能、血清生化指标和磷排泄的影响。选择体重为(21.07±0.30)kg的育成期崂山奶山羊公羊30只,采用单因素试验设计,随机分成3组,每组10个重复,每个重复1只羊。各组饲喂能量和蛋白质水平基本一致,磷水平分别为0.25%、0.35%和0.45%的饲粮。试验期105 d,其中预试期15 d,正试期90 d。结果表明:1)饲粮磷水平对育成期崂山奶山羊干物质采食量无显著影响(P0.05)。饲粮磷水平对7、8、9月龄崂山奶山羊体重及平均日增重均无显著影响(P0.05)。2)饲粮磷水平对育成期崂山奶山羊血清钙、磷、尿素氮含量及碱性磷酸酶活性均无显著影响(P0.05)。3)在采食磷、粪磷、尿磷、磷总排泄量、沉积磷方面,0.45%组极显著高于0.25%组和0.35%组(P0.01),0.35%组极显著高于0.25%组(P0.01)。由此可见,饲粮磷水平对育成期崂山奶山羊干物质采食量、体重、血清生化指标均无显著影响,但饲粮磷水平为0.25%时可以显著降低粪磷、尿磷的排泄量,减少环境污染。在本试验条件下,育成期崂山奶山羊公羊饲粮磷水平以0.25%为宜。
[Abstract]:This experiment was conducted to study the effects of dietary phosphorus level on the incubation period of Laoshan dairy goat growth performance, serum biochemical effects and phosphorus excretion. Body weight (21.07 + 0.30) kg incubation period of Laoshan dairy goat ram 30, using the single factor experiment design, were randomly divided into 3 groups, with 10 replicates, each replicate 1 sheep were fed with protein and energy levels are basically the same, phosphorus levels were 0.25%, 0.35% and 0.45% of the diet. The experimental period of 105 D, the pre experimental period of 15 d, 90 D. official test results show that: 1) of dietary phosphorus level on incubation period of Laoshan dairy goats dry matter intake had no significant effect (P0.05). The effects of dietary phosphorus levels on the 7,8,9 month old Laoshan dairy goats weight and average daily gain were not significantly affected (P0.05).2) of dietary phosphorus level on incubation period of Laoshan dairy goat serum calcium, phosphorus, have no significant effect on nitrogen content and alkaline phosphatase activity of urea (P0.05).3) in feed phosphorus. P Urine phosphorus, total phosphorus, phosphorus excretion, deposition, the 0.45% groups were significantly higher than the 0.25% group and 0.35% group (P0.01), the 0.35% groups were significantly higher than the 0.25% group (P0.01). Thus, the weight of dietary phosphorus level on the incubation period of dry matter intake, Laoshan dairy goat, have no significant effect on serum biochemical indexes however, dietary phosphorus level is 0.25% can significantly reduce fecal phosphorus excretion, urine phosphorus, and reduce environmental pollution. Under the experimental conditions, incubation period of Laoshan dairy goat dietary phosphorus level in 0.25% is appropriate.

【作者单位】：青岛农业大学动物科技学院;青岛市畜牧兽医研究所;
【基金】：基金项目:山东省现代农业产业技术体系羊产业创新团队(SDAIT-10-04)
【分类号】：S827.5

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