日粮蛋白质水平对早期断奶藏羔羊尿沉渣的影响

发布时间：2018-07-20 13:22

【摘要】：试验旨在研究不同蛋白质水平日粮对早期断奶藏羔羊尿沉渣指标的影响。采用单因子随机试验设计,选取2月龄断奶、体重(20.80±2.75)kg的健康藏公羔羊90只,随机分为3组,每组30个重复,每个重复1只羊,分别饲喂蛋白质水平为10.8%(LP组)、12.0%(MP组)和13.2%(HP组)的日粮,试验期127d。结果显示,HP组中有3只羔羊膀胱、输尿管组织出现损伤,且1只有膀胱结石,LP、MP组羔羊均未出现尿路疾病致死症状,表明较低的蛋白质水平可以降低后期泌尿系统疾病的发病率,从而改善羔羊的健康。LP组白细胞和电导率数量波动较大,无管型,HP组尿沉渣指标均波动较大,白细胞,红细胞,结晶,类酵母菌数量均呈上升趋势,MP组尿沉渣波动较小,均在正常范围内,且无管型。在本试验条件下,日粮蛋白质水平对早期断奶藏羔羊的尿沉渣指标有显著影响,且日粮蛋白质水平为12.0%时,尿沉渣指标最优,死亡率最低,泌尿组织较完整,机体最健康,有利于生产。
[Abstract]:The purpose of this study was to study the effect of dietary protein level on urine sediment index of early weaning lambs. Using a single factor randomized trial design, 90 healthy Tibetan male lambs of 2 months old weaned with weight of (20.80 卤2.75) kg were randomly divided into 3 groups with 30 replicates in each group. The diets with protein level of 10.8% (LP group) 12.0% (MP group) and 13.2% (HP group) were fed for 127 days. The results showed that there were 3 lambs in HP group with ureteral tissue injury, and 1 lambs with only bladder stone and LPMP had no fatal symptoms of urinary tract disease, indicating that lower protein level could reduce the incidence of urinary tract diseases in later stage. In order to improve the health of lambs, the number of white blood cells and electrical conductivity fluctuated greatly, and the indexes of urinary sediment in the group of tube-free HP all fluctuated greatly. The number of white blood cells, erythrocytes, crystals and yeast in MP group showed an increasing trend. The fluctuation of urinary sediment in MP group was small. All in the normal range, and no tube type. Under the experimental conditions, dietary protein level had a significant effect on urine sediment index of early weaning lamb, and when dietary protein level was 12.0, urinary sediment index was the best, mortality was lowest, urinary tissue was intact and body was the healthiest. It is good for production.
【作者单位】：青海大学农牧学院;
【基金】：藏羊系列全价营养补饲料开发及示范推广项目(2015-NK-303) 智慧生态畜牧业贵南典型区技术集成与应用示范(2015-SF-A4-2) 2014年青海省科技厅重大专项藏羊高效养殖技术集成与示范推广(2014-NK-A6-2)
【分类号】：S826.5

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