China Animal Husbandry and Veterinary Medicine ›› 2023, Vol. 50 ›› Issue (1): 115-124.doi: 10.16431/j.cnki.1671-7236.2023.01.012

• Nutrition and Feed • Previous Articles     Next Articles

Effects of Dietary Fermented Soybean Meal Replacement on Growth Performance, Digestive Enzyme,and Microbita Composition in Weaned Piglets

WANG Yuan1,2, WANG Wenwen1,2, AN Xiaoping1,2, QI Jingwei1,2   

  1. 1. College of Animal Science, Inner Mongolia Agricultural University, Hohhot 010018, China;
    2. Inner Mongolia Herbivorous Livestock Feed Engineering and Technology Research Center, Hohhot 010018, China
  • Received:2022-06-16 Online:2023-01-05 Published:2023-01-04

Abstract: 【Objective】 This study aimed to investigate the effects of dietary fermented soybean meal (FSBM) replacement on growth performance, digestive enzyme activity, and microbita composition in weaned piglets.【Method】 Forty-eight crossbred piglets (Duroc×Landrace×Large White, 6.88 kg±0.13 kg, 21 days±2 days of age) were allotted into 2 groups (control group and FSBM group) with 4 replicates per group and 6 piglets per replicate.Piglets in control group were fed a basal diet, and experimental diet was formulated with 6% FSBM at the expense of soybean meal in basal diet.The experiment lasted for 20 days.The daily feed intake and body weight were recorded.On 21th day of the experiment, 2 piglets were randomly selected from each replicate and slaughtered.The ileal digesta was collected to measure digestive enzyme activity and microbita composition, and the correlations between the relative abundances of OTUs and the digestive enzyme activity were analyzed.【Result】 ① Feeding FSBM significantly enhanced final body weight and average daily gain (ADG) while reduced feed/gain (F/G) of piglets (P<0.05).② The activities of trypsin and amylase in ileal digesta of piglets were increased by treatment with FSBM (P<0.05).③ Dietary FSBM replacement significantly improved the relative abundance of Bacteroidetes, Anaerovibrio, Prevotellaceae_NK3B31_group, Ruminococcaceae_UCG-005, Prevotella_2, Megasphaera, Parabacteroides, Solobacterium, Lachnospiraceae_UCG-004 in ileal digesta of piglets, while the relative abundance of Streptococcus was decreased (P<0.05).④ The trypsin activity was positively correlated with relative abundance of Oscillospira and Ruminococcaceae_UCG-005 (P<0.05), while was negatively correlated with that of Subdoligranulum and Sutterella (P<0.05).The amylase activity was positively correlated with relative abundance of Prevotellaceae_UCG003 and Faecalibacterium (P<0.05), while was negatively correlated with that of Succinivibrio and Romboutsia (P<0.05).The activities of lipase was negatively correlated with Citrobacter relative abundance (P<0.05).【Conclusion】 Dietary FSBM replacement could regulate structure of ileal microbiota composition, increase the activities of trypsin and amylase, and improve growth performance of weaned piglets.

Key words: fermented soybean meal; weaned piglets; gut microbiota; growth performance; digestive enzyme

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