摘要
选用48头28日龄体重为(7.56±0.36)kg的杜×长×大断奶仔猪,随机分为A、B、C组,分别饲喂基础饲粮、基础饲粮+1 000 mg/kg粉剂丁酸钠、基础饲粮+300 mg/kg的包膜丁酸钠,研究不同剂型丁酸钠对断奶仔猪生长性能和血液生化指标的影响。结果表明:与A组相比,丁酸钠对断奶仔猪日均采食量有一定的影响,添加包膜丁酸钠显著降低了(7.30%)断奶仔猪15～28日龄的料重比(p<0.05);日粮中添加丁酸钠可以降低仔猪的腹泻率,与A组相比,试验组分别降低了腹泻指数22.55%和40.19%(p<0.05);但是丁酸钠对血清总蛋白和尿氮等影响不明显。丁酸钠能够提高断奶仔猪的采食量及饲料转化率,改善生产性能,降低腹泻率;包膜丁酸钠效果优于粉剂丁酸钠。
In order to study the effects of different dosage forms sodium butyrate on growth performances and serum bio-chemical parameters of weaned piglets, forty-eight 28-day-old weaned piglets, cross bred by Duroc xLandrace x Yorkshire, with an average initial weight of 7.56＋0.36 kg were randomly divided into A group, B group and C group. A group was fed with basal diet; B and C group were fed with basal diet＋1000 mg/kg of powder sodium butyrate and basal diet＋300 mg/kg of coated sodium butyrate. The results showed that in comparison with A group, sodium butyrate had some influences on average daily feed intake of weaned piglets, coated sodium butyrate significantly decreased （7.30%） the feed gain ratio （P〈O.05） of 15~28-day-old weaned piglets. Adding sodium butyrate to basal diet can reduce the diarrhea rate of piglets; in comparison with group A, diarrheal index in B group and C group was reduced by 22.55% and 40.19%, respectively （P〈0.05）. However, sodium butyrate had no obvious effect on serum total protein and urinary nitrogen. In a conclusion, the sodium butyrate can increase the feed intake and feed conversion rates of weaned piglets to improve production performance, reduce diarrhea rate; the effects of coated sodium butyrate were better than those of powder sodium butyrate.
出处
《湖南农业科学》
2011年第8期162-164,168,共4页
Hunan Agricultural Sciences
关键词
丁酸钠
断奶仔猪
生长性能
血清指标
sodium butyrate
weaned piglets
growth performance
serum parameters
