动物营养学报2019，Vol.31Issue(1)：469-476,8.DOI:10.3969/j.issn.1006-267x.2019.01.055
干酪乳杆菌对北京黑猪育肥阶段生长性能和肌肉营养成分含量的影响
Effects of Lactobacillus casei on Growth Performance and Muscle Nutritional Component Contents of Beijing Black Pigs during Fattening Stage
摘要
Abstract
This experiment was conducted to evaluate the effects of dietary Lactobacillus casei on growth performance and the contents of crude protein, intramuscular fat, amino acids and fatty acids in longissimus dorsi muscle of Beijing black pigs during fattening stage.A total of 120 healthy fattening Beijing black pigs with an average body weight of (62.77±0.59) kg were randomly allotted into 2 groups with 5 replicates per group and12 pigs per replicate (barrow and female in half) , comprising of control group and Lactobacillus casei group.The pigs in the control group were fed a basal diet (without antibiotics and Lactobacillus casei) , and the pigs in the Lactobacillus casei group were fed the basal diet supplemented with Lactobacillus casei (viable count was 2.0×109 CFU/kg diet) .The experiment lasted for 42 days.The results showed as follows:1) compared with the control group, the average daily gain was significantly increased by 8.02％ (P<0.05) and the feed/gain was significantly decreased by 7.20％ (P<0.05) in Lactobacillus casei group.2) Compared with the control group, the contents of crude protein, intramuscular fat, delicious amino acids, essential amino acids, total amino acids and unsaturated fatty acids in Lactobacillus casei group were increased, the content of saturated fatty acids was decreased, but there were no significant difference between control group and Lactobacillus casei group (P>0.05) .The results indicate that Lactobacillus casei supplementation has beneficial effects on the improvement of growth performance and feed conversion ratio in Beijing black pigs during fattening stage, but has no significant effect on the contents of muscle nutritional components.关键词
北京黑猪/干酪乳杆菌/生长性能/肌肉营养成分含量Key words
Beijing black pigs/Lactobacillus casei/growth performance/muscle nutritional component contents分类
农业科技引用本文复制引用
王四新,季海峰,王红卫,刘辉,石国华,张董燕,王晶,张伟,王雅民..干酪乳杆菌对北京黑猪育肥阶段生长性能和肌肉营养成分含量的影响[J].动物营养学报,2019,31(1):469-476,8.基金项目
北京市科技计划课题 (Z141100002614002) （Z141100002614002）
生猪产业技术体系北京市创新团队项目 (BAIC02-2018) （BAIC02-2018）
北京市农林科学院科技创新能力建设专项 (KJCX20161503) （KJCX20161503）
