饲料科学与技术 Feed science and technology

副干酪乳杆菌发酵饲料对生长猪生长性能、粪便菌群数量与挥发性脂肪酸含量以及血清生化和免疫指标的影响

  • 刘辉 ,
  • 季海峰 ,
  • 王四新 ,
  • 张董燕 ,
  • 王晶 ,
  • 张伟 ,
  • 王雅民
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  • 北京市农林科学院畜牧兽医研究所, 北京 100097
刘辉(1978-),男,山东济南人,副研究员,硕士,研究方向为动物营养与饲料。E-mail:liuh1860@sina.com

收稿日期: 2019-01-16

  网络出版日期: 2019-08-19

基金资助

生猪产业技术体系北京市创新团队建设项目(BAIC02-2018);北京市农林科学院青年科研基金(QNJJ201812);北京市农林科学院科技创新能力建设专项(KJCX20161503)

Effects of Lactobacillus paracasei-Fermented Feed on Growth Performance, Fecal Bacteria Populations and Volatile Fatty Acid Contents, and Serum Biochemical and Immune Indexes of Growing Pigs

  • LIU Hui ,
  • JI Haifeng ,
  • WANG Sixin ,
  • ZHANG Dongyan ,
  • WANG Jing ,
  • ZHANG Wei ,
  • WANG Yamin
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  • Institute of Animal Husbandry and Veterinary Medicine, Beijing Academy of Agriculture and Forestry Sciences, Beijing 100097, China

Received date: 2019-01-16

  Online published: 2019-08-19

摘要

本试验旨在研究副干酪乳杆菌发酵饲料对生长猪生长性能、粪便菌群数量与挥发性脂肪酸含量以及血清生化和免疫指标的影响。选取平均体重为(20.86±0.62)kg的健康"长×大"二元生长猪140头,随机分为2组(对照组和试验组),每组5个重复,每个重复14头。对照组生长猪饲喂基础饲粮,试验组生长猪饲喂由95%基础饲粮和5%副干酪乳杆菌发酵饲料组成的试验饲粮。预试期5 d,正试期31 d。结果显示:与对照组相比,1)试验组生长猪的末重和平均日增重分别提高了6.32%(P<0.05)和12.23%(P<0.05),料重比降低了8.58%(P<0.05);2)试验组生长猪粪便中乳酸菌的数量显著提高(P<0.05),大肠杆菌和金黄色葡萄球菌的数量显著降低(P<0.05);3)试验组生长猪粪便中乙酸、丁酸和总挥发性脂肪酸的含量分别提高了13.44%(P<0.05)、20.51%(P<0.05)和11.01%(P<0.05);4)试验组生长猪血清中总蛋白、球蛋白、免疫球蛋白G和免疫球蛋白A的含量分别提高了18.85%(P<0.05)、33.31%(P<0.05)、15.85%(P<0.05)和45.86%(P<0.05),血清中尿素氮和结合珠蛋白的含量分别降低了19.29%(P<0.05)和52.72%(P<0.05)。以上结果表明,在饲粮中添加副干酪乳杆菌发酵饲料可提高生长猪的生长性能,调节肠道菌群平衡,增强机体免疫功能并增加粪便中挥发性脂肪酸的含量。

本文引用格式

刘辉 , 季海峰 , 王四新 , 张董燕 , 王晶 , 张伟 , 王雅民 . 副干酪乳杆菌发酵饲料对生长猪生长性能、粪便菌群数量与挥发性脂肪酸含量以及血清生化和免疫指标的影响[J]. 动物营养学报, 2019 , 31(8) : 3747 -3754 . DOI: 10.3969/j.issn.1006-267x.2019.08.036

Abstract

This experiment was conducted to evaluate the effects of Lactobacillus paracasei-fermented feed on growth performance, fecal bacteria populations and volatile fatty acid contents, and serum biochemical and immune indexes of growing pigs. A total of 140 Landrace×Yorkshire crossbred growing pigs with an average body weight of (20.86±0.62) kg were divided into 2 groups:control group and experimental group. Each group had 5 replicates with 14 pigs per replicate. Pigs in the control group were fed a basal diet, and pigs in experimental group were fed an experimental diet which consisted of basal diet (95%) and Lactobacillus paracasei-fermented feed (5%). The pre-experimental period was 5 days, and the experimental period was 31 days. The results showed that, compared with the control group:1) the final weight and average daily gain were increased by 6.32% (P<0.05) and 12.23% (P<0.05), respectively, and the feed/gain was decreased by 8.58% (P<0.05) in the experimental group; 2) the population of fecal lactic acid bacteria was significantly increased (P<0.05), and the populations of Escherichia coli and Staphylococcus aureus were significantly decreased (P<0.05) in the experimental group; 3) the contents of acetic acid, butyric acid and total volatile fatty acid in feces in the experimental group were increased by 13.44% (P<0.05), 20.51% (P<0.05) and 11.01% (P<0.05), respectively; 4) the contents of serum total protein, globulin, immunoglobulin G and immunoglobulin A were increased by 18.85% (P<0.05), 33.31% (P<0.05), 15.85% (P<0.05) and 45.86% (P<0.05), and the contents of serum urea nitrogen and haptoglobin were decreased by 19.29% (P<0.05) and 52.72% (P<0.05) in the experimental group, respectively. The results indicate that Lactobacillus paracasei-fermented feed can improve the growth performance, regulate the intestinal microbial balance, enhance the immune function and increase the contents of volatile fatty acids in feces of growing pigs.

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