›› 2018, Vol. 45 ›› Issue (7): 1849-1855.doi: 10.16431/j.cnki.1671-7236.2018.07.015

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Effects of Different Adding Amounts of Yeast-germanium Culture on Intestinal Flora, Immunity and Antioxidant Properties of Weaned Piglets

GAO Kai, LI Xiaodong, ZHANG Min, WANG Zhen, HAN Dongkui, BAI Xiaokai   

  1. Department of Animal Science, Yanbian University, Yanji 133002, China
  • Received:2017-11-02 Online:2018-07-20 Published:2018-07-20

Abstract:

This experiment was aimed to study the effects of different adding amounts of yeast-germanium culture on intestinal flora,immunity and antioxidant properties of weaned piglets.One hundred healthy piglets((6.0±0.5) kg) were randomly divided into 5 groups,with 5 replicates per group and 4 piglets per replicate.The control group was fed basal diet,and the content of yeast-germanium culture in basal diet of test Ⅰ,Ⅱ,Ⅲ and Ⅳ groups were 15,25,35 and 45 mg/kg,respectively.The prefeeding period was 7 days.The test period was 42 days,which was divided into 3 stages,14 days per stage.The number of Lactobacilli and Escherichia coli in intestinal tract of piglets at all stages was measured.The content of blood immunoglobulin and the related indexes of antioxidant activity were measured at the end of the test.The result shows that:Compared with the control group,in the first stage of the test,the number of Escherichia coli in all experimental groups were extremely significantly or significantly decreased (P<0.01; P<0.05),and the number of Lactobacilli in all experimental groups were extremely significantly or significantly increased (P<0.01; P<0.05).The serum IgG levels in groups Ⅲ and Ⅳ were extremely significantly increased (P<0.01).For serum MDA content,group Ⅱ was significantly decreased (P<0.05),groups Ⅲ and Ⅳ were extremely significantly decreased (P<0.01).For serum GSH-Px,SOD and T-AOC,group Ⅱ was significantly increased (P<0.05),groups Ⅲ and Ⅳ were extremely significantly increased (P<0.01).In summary,the yeast-germanium culture could effectively improve the intestinal flora environment and improve the immunity and antioxidant properties of piglets.Based on the consideration of economic cost,it was suggested that the concentration of yeast-germanium culture in weaned piglets diet was 35 mg/kg.

Key words: yeast-germanium culture; weaned piglets; intestinal flora; immunity; antioxidant properties

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