›› 2017, Vol. 44 ›› Issue (1): 94-99.doi: 10.16431/j.cnki.1671-7236.2017.01.013

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Effects of Lactobacillus Probiotics on Growth Performance,Nutrient Digestibility and Serum Biochemical Indexes in Arctic Foxes

ZHANG Ting, LIU Han-lu, XING Jing-ya, SI Hua-zhe, ZHONG Wei, YUE Zhi-gang, LI Guang-yu   

  1. State Key Laboratory of Special Economic Animal Molecular Biology, Institute of Special Animal and Plant Science, Chinese Academy of Agricultural Sciences, Changchun 130112, China
  • Received:2016-06-06 Online:2017-01-20 Published:2017-01-19

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

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