不同丁酸梭状芽胞杆菌添加水平对断奶仔猪血清生化指标的影响

Effect of Different Adding Levels Clostridium butyricumon Serum Biochemical Indexes of Weaned Piglets

探讨不同丁酸梭状芽胞杆菌添加水平对断奶仔猪血清生化指标的影响。选用120头日龄约为28d±2d、平均体重相近(6.31kg±0.24kg)的三元杂交(杜×大×长)断奶仔猪,按完全随机分组法分成4个组,每组设3个重复组,每个重复10头。采用单因子试验设计,Ⅰ组为空白对照组,饲喂基础饲粮;Ⅱ、Ⅲ、Ⅳ组分别饲喂含有丁酸梭状芽胞杆菌4×107、8×107、1.6×108 cfu/kg的饲粮,试验共6周。结果表明,随着丁酸梭状芽胞杆菌添加水平的提高,仔猪血清总蛋白、白蛋白、白蛋白与球蛋白之比(白/球)增加显著(P<0.05),血清谷草转氨酶、尿素氮水平和谷丙转氨酶水平显著降低(P<0.05),血清碱性磷酸酶水平无显著差异(P>0.05),但具有降低的趋势,血清球蛋白水平无显著差异(P>0.05),但具有增加的趋势。因此,从血清生化指标方面考虑,饲粮中丁酸梭状芽胞杆菌的最适宜添加量为1.6×108 cfu/kg。

This article discussed the effect of Clostridium butyricum for serum biochemical indexes of weaned piglets through different adding levels. Choosing 120 hybrid weaned piglets of 28 d±2 d and weight nearly the same（＆ 31 kg±0.24 kg） were divided into 4 groups at random,those piglets were fed with the daily feed containing Clostridium butyricum levels of 0,4 × 10^7 cfu/kg,8 × 10^7 cfu/kg, 1.6 × 10^8 cfu/kg in the experiments for 6 weeks. The results showed as follows：With the increase of Clostridium butyricum level,serum total protein, albumin, the ratio of albumin to globulin increased significantly（P〈0.05）;As- partate aminotransferase（AST）,urea nitrogen （BUN） and cereal third transaminase（ALT） decreased sig nificantly（P〈0.05） ;The level of serum alkaline phosphatase showed no significant effect（P〉0.05）, but had the trend of reduction; The level of serum globulin showed no significant effect（P〉0.05） ,but had the trend of increase. Therefore, from the serum biochemical indexes the optimum adding amount of Clostridia butyricum is 1.6 × 10^8 cfu/kg.