China Animal Husbandry and Veterinary Medicine ›› 2021, Vol. 48 ›› Issue (11): 3985-3995.doi: 10.16431/j.cnki.1671-7236.2021.11.008

• Animal Nutrition and Feed Science • Previous Articles     Next Articles

Effects of Fermented Shiitake Residues on Growth Performance, Colonic Volatile Fatty Acids Contents and Microbial Structure in Weaned Piglet

PENG Qiaoli1, QI Qien1, ZHOU Guoyong2, TANG Min3, CHEN Dongling3, LIU Shen1, ZHANG Huihua1   

  1. 1. School of Life Science and Engineering, Foshan University, Foshan 528225, China;
    2. Yuehao Biotechnology Co., Ltd., Guangzhou 510700, China;
    3. Guangdong No. 1 Food Co., Ltd., Zhanjiang 524000, China
  • Received:2021-05-24 Online:2021-11-20 Published:2021-11-01

Abstract: This study was carried out to investigate the effects of fermented shiitake residues (FSR) on growth performance, intestinal digestive enzyme activities, colonic volatile fatty acid contents and microbial structure in weaned piglets. A total of 100 weaned piglets (Small ear flower pigs×Duroc pigs, 50 males and 50 females) were allocated to two treatment groups with five replicates of ten pigs each. The piglets in control group were fed with the basal diet without FSR, while in experimental group were fed with the basal diet supplemented with 5% FSR. The experiment lasted for 33 days. At the end of the experiment, 6 piglets (half male and half female) were selected from each treatment and slaughtered for sampling. The growth performance, duodenal mucosal digestive enzyme activity, relative expression of jejunal tight junction protein (TJP) mRNA, colonic volatile fatty acid content and intestinal microbial structure in weaned piglets were detected. The results showed that compared with control group, in experiment group, the final weight and average daily gain (ADG) were significantly increased, and the F/G was significantly decreased (P<0.05), the activities of trypsin and β-amylase were significantly increased (P<0.05), the levels of propionic acid, butyric acid, isobutyric acid and isovaleric acid in colonic were significantly increased (P<0.05), the relative abundance of Fibrobacteres and Streptococcus in colonic were significantly increased (P<0.01;P<0.05). The expression of TJP1 and TJP2 genes between the two groups was not significant difference (P>0.05). In conclusion, dietary supplementation with 5% FSR enhanced growth performance, improved intestinal digestive enzyme activities and production of volatile fatty acids and favorably modulated intestinal microbiota composition in weaned piglets.

Key words: weaned piglet; fermented shiitake residue; intestinal health; growth performance; intestinal microbiota structure

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