饲粮添加苹果果胶寡糖对育肥后期猪胴体性状、肉品质和结肠主要菌群的影响

发布时间：2018-11-05 16:13

【摘要】：本研究旨在探讨饲料添加苹果果胶寡糖(APOS)对育肥后期猪胴体性状、肉品质和结肠主要菌群的影响。试验选取36头平均体重约为80 kg健康"杜×长×大"去势公猪,按照体重相近的原则随机分为3个处理,每个处理6个重复,每个重复2头猪。各处理分别饲喂在基础饲粮中添加0、200和400 mg/kg APOS的饲粮,试验期为28 d。结果表明,饲粮添加APOS未显著影响育肥猪生长性能(P0.05);饲粮添加APOS不同程度地提高了育肥猪的眼肌面积(P0.05)和肌内脂肪含量(P=0.07),不同程度地降低了育肥猪的肌肉滴水损失(P=0.06)和蒸煮损失(P0.05);另外,饲粮添加APOS还提高了育肥猪结肠食糜中总菌的数量(P=0.07),且显著提高了结肠食糜中挥发性脂肪酸的含量(P0.05)。综上所述,在饲粮中添加200或400 mg/kg APOS对育肥猪生长性能无影响,但可在不同程度上改善育肥猪胴体性状和肉品质,并调节了结肠主要菌群和挥发性脂肪酸产生。
[Abstract]:The purpose of this study was to investigate the effects of apple pectin oligosaccharide (APOS) on carcass traits, meat quality and colonic microflora of later finishing pigs. 36 ovariectomized boars with an average body weight of about 80 kg were randomly divided into 3 treatments, 6 replicates per treatment and 2 pigs per replica according to the principle of similar body weight. Each treatment was fed with 0200 and 400 mg/kg APOS diet respectively, and the experiment period was 28 days. The results showed that the growth performance of fattening pigs was not significantly affected by dietary addition of APOS (P0.05). Dietary APOS increased eye muscle area (P0.05) and intramuscular fat content (P0.07), decreased muscle drip loss (P0.06) and cooking loss (P0.05). In addition, dietary addition of APOS also increased the total bacteria count in colonic chyme (P0. 07), and significantly increased the content of volatile fatty acids in colonic chyme (P0.05). To sum up, adding 200 or 400 mg/kg APOS to diet had no effect on growth performance of fattening pigs, but could improve carcass traits and meat quality of fattening pigs in varying degrees, and regulate the production of main colonic flora and volatile fatty acids.
【作者单位】：四川农业大学动物营养研究所动物抗病营养教育部重点实验室;中国农业科学院饲料研究所;
【基金】：四川省科技支撑项目(2013NZ0056) 现代农业产业技术体系(CARS-36)
【分类号】：S828.5

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