摘要
Abstract
This study systematically evaluated the effects of sodium butyrate at different doses on the growth performance,muscle amino acid composition,and anti-inflammatory properties of weaned piglets.A total of 200 weaned piglets aged 28 days(8.50±0.50 kg)were randomly divided into 4 groups,each with 5 replicates of 10 piglets.The control group was fed a basal diet,while the experimental groups received diets supplemented with 250,500,and 1000 mg/kg sodium butyrate,respectively.The trial lasted for 42 days.The results showed that compared with the control group,the final body weights in the 500 mg/kg and 1000 mg/kg sodium butyrate groups significantly increased by 4.2％and 7.5％(P<0.05),respectively;the average daily gains significantly improved by 9.8％and 13.6％(P<0.05),respectively;and the feed-to-gain ratios significantly decreased by 6.7％and 9.2％(P<0.05),respectively.Serum inflammation indicators showed that the TNF-α levels in the 500 mg/kg and 1000 mg/kg groups significantly decreased by 23.0％and 27.1％(P<0.05),respectively;the IL-1β levels significantly declined by 20.1％and 25.5％(P<0.05),respectively;and the IL-10 levels significantly increased by 33.3％and 35.9％(P<0.05),respectively.Regarding muscle amino acid composition,the lysine content in the 500 mg/kg and 1000 mg/kg groups significantly increased by 8.3％and 13.5％(P<0.05),respectively;while the glutamate content significantly rose by 9.7％and 14.3％(P<0.05),respectively.In summary,dietary supplementation with 500-1000 mg/kg sodium butyrate can effectively improve the growth performance of weaned piglets,alleviate inflammatory responses,and optimize muscle quality,with the 1000 mg/kg dose providing the most comprehensive benefits.关键词
丁酸钠/断奶仔猪/生长性能/氨基酸组成/抗炎性能Key words
sodium butyrate/weaned piglets/growth performance/amino acid composition/anti-inflammatory performance分类
农业科技
