动物营养学报Issue(1)：247-255,9.DOI:10.3969/j.issn.1006-267x.2015.01.030
德氏乳杆菌对育肥猪生产性能、血脂指标及粪和组织中总胆固醇和总胆汁酸含量的影响
Effects of Lactobacillus delbrueckii on Performance, Serum Lipid Indexes, Total Cholesterol and Total Bile Acid Contents in Feces and Tissues of Fattening Pigs
摘要
Abstract
This experiment was conducted to study the effects of Lactobacillus delbrueckii on performance, ser-um lipid indexes, total cholesterol and total bile acid contents in feces and tissues of fattening pigs. A total of 120 healthy crossbred Duroc×(Landrace×Yorkshire) fattening pigs with the average body weight of (65.34± 3.64) kg were randomly divided into 2 groups with 6 replicates per group and 10 pigs per replicate ( half male and half female) . The control group was fed a basal diet without antibiotics, while the experimental group was fed the basal diet added with 0.1% Lactobacillus delbrueckii. The pre-test lasted for 7 days, and the experiment lasted for 42 days. On days 14, 28 and 42 of experiment, one pig ( each group included 3 male and 3 female pigs) was selected from each replicate to collect anterior vena cava blood, and in the period of day 12 to day 14, day 26 to day 28 and day 40 to day 42, fresh feces of each replicate was collected. At the end of experi-ment, one pig of each replicate whose weight was closed to the average body weight was selected to slaughter for isolating liver, longissimus muscle and myocardium. The results showed as follows:1) compared with the control group, there was no significant difference in average daily gain ( ADG ) , average daily feed intake ( ADFI) and the ratio of feed to gain ( F/G) ( P>0.05) , but the diarrhea rate and morbidity were reduced ex-tremely significantly or significantly in the experimental group ( P<0.01 or P<0.05) . 2) There was no signifi-cant difference in the contents of serum total cholesterol ( TC ) , triglyceride ( TG ) , low density lipoprotein-cholesterol ( LDL-C) , high density lipoprotein-cholesterol ( HDH-C) and the ratio of HDL-C to LDL-C be-tween the 2 groups on days 14, 28 and 42 ( P>0.05) , but the content of serum total bile acid was decreased significantly on days 14 and 42 ( P<0.05) . 3) During the period of day 12 to day 14, compared with the con-trol group, the fecal TBA content in the experimental group was significantly increased ( P<0.05) , but the fe-cal TC content was extremely significantly decreased ( P<0.01);from day 26 to day 28, the contents of fecal TBA and TC in the experimental group were not significantly different from those in the control group ( P>0.05); from day 40 to day 42, the fecal TBA content in the experimental group was significantly higher than that in the control group ( P<0.05) , but there was no significant difference in the fecal TC content between the 2 groups ( P>0.05) . 4) Compared with the control group, the TC content in liver, myocardium and longissi-mus muscle and the TBA content in liver in the experimental group had no significant differences (P>0.05). In conclusion, these results indicate that diet added with 0.1% Lactobacillus delbrueckii can improve the per-formance and serum lipid status, promote the fecal cholesterol and bile acid excretion of fattening pigs.关键词
德氏乳杆菌/育肥猪/血脂指标/胆固醇/胆汁酸Key words
Lactobacillus delbrueckii/fattening pigs/serum lipid indexes/cholesterol/bile acid分类
农业科技引用本文复制引用
李瑞,侯改凤,刘明,彭伟,黄兴国..德氏乳杆菌对育肥猪生产性能、血脂指标及粪和组织中总胆固醇和总胆汁酸含量的影响[J].动物营养学报,2015,(1):247-255,9.基金项目
国家自然科学基金项目(31272458) （31272458）
湖南省战略性新兴产业攻关项目“猪肉品质生物调控与绿色贮运技术研究及应用” （）
