Effect of sodium butyrate on slaughter performance, serum indexes and intestinal barrier of rabbits

JOURNAL OF ANIMAL PHYSIOLOGY AND ANIMAL NUTRITION(2022)

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摘要
The purpose of this study was to investigate the effect of sodium butyrate on slaughter performance, serum indexes and the intestinal barrier in rabbits. Six hundred healthy weaned rabbits were randomly divided into three groups (5 replicates per group, 40 rabbits per replicate): control (fed a basal diet), sodium butyrate (fed a basal diet containing 0.5% sodium butyrate) and antibiotic (fed a basal diet containing 0.004% antibiotic). The trial lasted 35 days, including 7 days of pretesting and 28 days of formal testing. The results showed that dietary sodium butyrate supplementation increased the full-bore weight, the half-bore weight and the half-bore rate of rabbits. Meanwhile, the content of aspartate aminotransferase (AST) in serum was increased in rabbits fed the sodium butyrate diet. According to the intestinal barrier, after adding sodium butyrate to feed, the tight junction function of the rabbit intestine is enhanced, and the intestinal microbial composition is also improved. To sum up, after sodium butyrate was added to feed instead of antibiotics, slaughter performance was significantly enhanced, serum indexes were improved, and intestinal barrier function was also enhanced. Therefore, sodium butyrate can be added to feed as an additive and can replace antibiotics.
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关键词
blood indexes, intestinal barrier, rabbits, slaughter performance
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