固态发酵醋糟饲料对育肥猪生长性能、养分表观消化率、血清指标及粪便中挥发性脂肪酸含量的影响

本试验旨在研究固态发酵醋糟饲料(SFVD)对育肥猪生长性能、养分表观消化率、血清指标及粪便中挥发性脂肪酸(VFA)含量的影响。选择体况相近(59.04±0.33)kg]的健康“杜×长×大”三元杂交生长育肥猪60头,随机分为2个组,每组3个重复,每个重复10头猪。对照组饲喂基础饲粮+150 mg/kg土霉素钙,试验组饲喂基础饲粮+5%的SFVD。预试期6 d,正试期35 d。结果表明:与对照组相比,基础饲粮中添加5%的SFVD对育肥猪平均日采食量(ADFI)具有一定的促进趋势(P=0.056);显著降低了育肥猪饲粮中干物质(DM)、粗蛋白质(CP)、有机物(OM)和总能(GE)的表观消化率(P<0.05),对粗脂肪(EE)表观消化率有一定的促进趋势(P=0.052);显著提高了育肥猪血清谷草转氨酶(AST)和谷胱甘肽过氧化物酶(GSH-Px)活性(P<0.05),血清高密度脂蛋白(HDL)和免疫球蛋白A(IgA)含量也呈现出一定的升高趋势(P=0.055和P=0.077);显著提高了育肥猪粪便中丙酸含量(P<0.05),粪便中甲酸和总挥发性脂肪酸(TVFA)含量也呈现出一定的升高趋势(P=0.071和P=0.054)。由此可见,基础饲粮中添加5%的SFVD对育肥猪生长性能、肠道健康及免疫性能的提高具有潜在的促进作用。

Effects Solid State Fermentation Vinegar Dregs on Growth Performance,Nutrient Apparent Digestibilities,Serum Indexes and Faecal Volatile Fatty Acids Content of Finishing Pigs

This experiment was conducted to investigate the effects solid-state fermentation vinegar dregs(SFVD)on growth performance,nutrient apparent digestibilities,serum indexes and faecal volatile fatty acids content of finishing pigs.Sixty healthy"Duroc×Landrace×Yorkshire"finishing pigs with similar body condition(59.04±0.33)kg]were randomly divided into 2 groups with 3 replicates per group and 10 pigs per replicate.Pigs in the control group were fed the basal diet+150 mg/kg oxytetracycline calcium,and the others in the experimental group were fed the basal diet+5%SFVD.The pre-experimental period lasted for 6 days,and the experimental period lasted for 35 days.The results showed that compared with the control group,the basal diet supplemented with 5%SFVD had a tendency of promotion on the average daily feed intake(ADFI)of finishing pigs(P=0.056);significantly decreased the apparent digestibilities of dry matter(DM),crude protein(CP),organic matter(OM)and gross energy(GE)of finishing pigs(P<0.05),and had a tendency of promotion on the ether extract apparent digestibility(P=0.052);significantly increased the activities of aspartate aminotransferase(AST)and glutathione peroxidase(GSH-Px)in serum of finishing pigs(P<0.05),and the contents of high density lipoprotein(HDL)and immunoglobulin A(IgA)in serum were showed an increasing trend(P=0.055 and P=0.077);significantly increased the faecal propionic acid content of finishing pigs(P<0.05),and the contents of formic acid and total volatile fatty acid(TVFA)in faeces were showed an increasing trend(P=0.071 and P=0.054).In conclusion,the basal diet supplemented with 5%SFVD has potential promoting effects on growth performance,intestinal health and immunity of finishing pigs.