乳酸菌微生态制剂对冬毛期北极狐生长性能、营养物质消化率及血清生化指标的影响

doi:10.16431/j.cnki.1671-7236.2017.01.013

摘要/Abstract

摘要：

试验旨在研究乳酸菌微生态制剂对冬毛期北极狐生长性能、营养物质消化率及血清生化指标的影响。选取135日龄、体重相近的健康雌性北极狐40只，随机分为4组，每组10个重复，每个重复1只。Ⅰ组饲喂基础日粮；Ⅱ组饲喂基础日粮+0.02%硫酸黏杆菌素；Ⅲ组饲喂基础日粮+1 mL乳酸菌微生态制剂（乳酸菌活菌数为3×10⁹ CFU/mL）；Ⅳ组饲喂基础日粮+10 mL乳酸菌微生态制剂。结果显示：与对照组相比，添加乳酸菌微生态制剂可显著提高冬毛期北极狐平均日增重（P<0.05），并显著降低料重比（P<0.05）；可显著提高冬毛期北极狐粗脂肪和总能表观消化率（P<0.05）；添加高水平乳酸菌微生态制剂可显著降低冬毛期北极狐血清总胆固醇水平（P<0.05）。此外，抗生素组北极狐血清谷丙转氨酶水平极显著高于其他各组（P<0.01），谷草转氨酶水平显著高于对照组（P<0.05）。综上所述，在本试验条件下，当北极狐日采食活乳酸菌数达到3×10⁹ CFU/mL时即可促进其生长，粗脂肪和总能表观消化率显著提高；当北极狐日采食活乳酸菌数达到3×10¹⁰ CFU/mL时，血清总胆固醇水平显著降低；长期添加硫酸黏杆菌素可能造成北极狐肝脏损伤。

关键词: 北极狐; 乳酸菌; 生长性能; 营养物质消化率; 血清生化指标

Abstract:

This experiment was conducted to study the effects of Lactobacillus probiotics on growth performance,nutrient digestibility and serum biochemical indexes in arctic foxes during the winter fur-growing period. Forty 135-day-old female arctic foxes with a similar body weight were randomly divided into 4 groups with 10 replicates per group and 1 fox per replicate. The foxes in control group were fed basal diets,while that of groups Ⅱ,Ⅲ and Ⅳ were fed basal diet+0.02% colistin sulfate, basal diet+1 mL Lactobacillus probiotics (active Lactobacillus was 3×10⁹ CFU/mL) and basal diet+10 mL Lactobacillus probiotics,respectively. The results showed that:Compared to the control group,the addition of Lactobacillus probiotics significantly increased the average daily gain (P<0.05) and significantly decreased the F/G of arctic foxes during the winter fur-growing period (P<0.05).The apparent digestibility of EE and GE were significantly increased when arctic foxes fed diet supplemented with Lactobacillus probiotics (P<0.05).Supplementation of high level Lactobacillus probiotics could significantly decrease serum total cholesterol (P<0.05). Additionally,serum alanine aminotransferase concentration of group Ⅱ was extremely significantly higher than that of the other three treatments (P<0.01). Moreover,the serum aspartate aminotransferase concentration was significantly higher than the control group (P<0.05). In conclusion,the addition of Lactobacillus probiotics had beneficial effects on growth performance and apparent digestibility of EE and GE when arctic foxes got 3×10⁹ CFU/mL active Lactobacillus from the probiotics per day. The total cholesterol in serum was significantly decreased when arctic foxes get 3×10¹⁰ CFU/mL active Lactobacillus from the probiotics per day. It might cause the liver damage when arctic fox got colistin sulfate for a long time.

Key words: arctic fox; Lactobacillus; growth performance; nutrient digestibility; serum biochemical indexes

中图分类号:

S816.7

张婷, 刘晗璐, 邢敬亚, 司华哲, 钟伟, 岳志刚, 李光玉. 乳酸菌微生态制剂对冬毛期北极狐生长性能、营养物质消化率及血清生化指标的影响[J]. 《中国畜牧兽医》, 2017, 44(1): 94-99.

ZHANG Ting, LIU Han-lu, XING Jing-ya, SI Hua-zhe, ZHONG Wei, YUE Zhi-gang, LI Guang-yu. Effects of Lactobacillus Probiotics on Growth Performance,Nutrient Digestibility and Serum Biochemical Indexes in Arctic Foxes[J]. , 2017, 44(1): 94-99.

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