动物营养学报 >

2015 , Vol. 27 >Issue 3: 870 - 877

DOI: https://doi.org/10.3969/j.issn.1006-267x.2015.03.026

研究简报 Short Communications

无抗发酵饲料对生长育肥猪生长性能、肠道菌群和养分表观消化率的影响

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  • 1. 湖南省微生物研究院, 长沙 410009;
    2. 饲用微生态制剂湖南省工程实验室, 长沙 410009;
    3. 湖南生物机电职业技术学院, 长沙 410127;
    4. 湖南省农用微生物应用 工程技术研究中心, 长沙 410009
周映华(1972—),女,湖南湘阴人,高级工程师,研究方向为动物营养和动物微生物。E-mail:zhouyinhuahn@126.com

收稿日期: 2014-10-21

  网络出版日期: 2015-03-18

基金资助

湖南省科技厅重点项目"无抗发酵饲料添加剂的研究与开发"(2011NK2013);湖南省自然科学基金(14JJ4070);湖南省2014年战略性新兴产业科技攻关项目(2014GK1054)

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Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora and Nutrient Apparent Digestibility of Growing-Finishing Pigs

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  • 1. Hunan Institute of Microbiology, Changsha 410009, China;
    2. Hunan Engineering Laboratory of Microecology Preparation, Changsha 410009, China;
    3. Hunan Biological and Electromechanical Polytechnic, Changsha 410127, China;
    4. Hunan Research Center of Agricultural Microorganism Engineering Technology, Changsha 410009, China

Received date: 2014-10-21

  Online published: 2015-03-18

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摘要

本试验旨在研究无抗发酵饲料对生长育肥猪生长性能、肠道菌群和养分表观消化率的影响。选择18 kg左右断奶仔猪60头,随机分为2个组,每组3个重复,每个重复10头猪。对照组饲喂含抗生素基础饲粮(每千克含黄霉素5 mg),试验组饲喂80%基础饲粮和20%的无抗发酵饲料组成的试验饲粮。试验期154 d。结果表明:1)试验组的末重、平均日增重和平均日采食量都显著高于对照组(P<0.05),而料重比则显著低于对照组(P<0.05)。2)试验组中期和后期的乳酸菌数量的对数值显著高于对照组(P<0.05),而试验组中期和后期的大肠杆菌和沙门氏菌数量的对数值显著低于对照组(P<0.05)。3)在十二指肠肠段,试验组肠道食糜中的乳酸菌和大肠杆菌数量的对数值显著高于对照组(P<0.05)。4)在十二指肠肠段,试验组肠道每克和每平方厘米黏膜的乳酸菌数量的对数值显著高于对照组(P<0.05);试验组肠道每克黏膜的大肠杆菌数量的对数值显著高于对照组(P<0.05)。在空肠肠段,试验组肠道每克和每平方厘米黏膜的乳酸菌数量的对数值显著高于对照组(P<0.05)。5)试验组的粗蛋白质和粗纤维的表观消化率显著高于对照组(P<0.05)。由此可见,无抗发酵饲料能提高生长育肥猪的生长性能,改善肠道微生物平衡,增强消化能力。

关键词： 无抗发酵饲料; 生长肥育猪; 生长性能; 肠道菌群; 消化能力

本文引用格式

周映华, 胡新旭, 卞巧, 刘惠知, 王升平, 高书锋, 周小玲, 张德元, 郭照辉 . 无抗发酵饲料对生长育肥猪生长性能、肠道菌群和养分表观消化率的影响[J]. 动物营养学报, 2015 , 27(3) : 870 -877 . DOI: 10.3969/j.issn.1006-267x.2015.03.026

Abstract

This experiment was conducted to study the effects of fermented feed without antibiotic on growth performance, intestinal flora and nutrient apparent digestibility of growing-finishing pigs. Sixty weaner piglets with similar body weight of 18 kg were selected and randomly allotted into 2 groups with 3 replicates per group and 10 pigs per replicate. Pigs in the control group were fed the basal diet with antibiotics (contained flavomycoin 5 mg/kg), and the others in the experimental groups were fed the experimental diet which contained 80% basal diet and 20% fermented feed without antibiotic. The experiment lasted for 154 days. The results showed as follows: 1) the final weight, average daily gain and average daily feed intake in experimental group were significantly higher than those in control group (P<0.05), but the ratio of feed to gain was significantly lower than that in control group (P<0.05). 2) The logarithmic value of Lactobacillus number at mid-period and late-period in experimental group was significantly higher than that in control group (P<0.05), but the logarithmic values of Escherichia coli and Salmonella number at mid-period and late-period in experimental group were significantly lower than that in control group (P<0.05). 3)In the duodenum, the logarithmic values of Lactobacillus and Escherichia coli number of chyme in experimental group were significantly higher than that in control group (P<0.05). 4) In the duodenum, the logarithmic value of Lactobacillus number per gram and per square centimeter of mucosa in experimental group was significantly higher than that in control group (P<0.05), the logarithmic value of Escherichia coli per gram of mucosa in experimental group was significantly higher than that in control group (P<0.05). In the jejunum, the logarithmic value of Lactobacillus number per gram and per square centimeter of mucosa in experimental group was significantly higher than that in control group (P<0.05). 5) The nutrient apparent digestibility of crude protein and crude fiber in experimental group was significantly higher than that in control group (P<0.05). In conclusion, the fermented feed without antibiotic can improve the growth performance, regulate the balance of intestinal flora and enhance digestive ability of growing-finishing pigs.

Key words： fermented feed without antibiotic; growing-finishing pigs; growth performance; intestinal flora; digestive ability

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