动物营养学报Issue(3)：870-877,8.DOI:10.3969/j.issn.1006-267x.2015.03.026
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
Effects of Fermented Feed without Antibiotic on Growth Performance, Intestinal Flora and Nutrient Apparent Digestibility of Growing-Finishing Pigs
摘要
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 flavomy-coin 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 sig-nificantly lower than that in control group ( P<0.05) . 3) In the duodenum, the logarithmic values of Lactoba-cillus 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 signifi-cantly higher than that in control group ( P<0.05) . In conclusion, the fermented feed without antibiotic can im-prove the growth performance, regulate the balance of intestinal flora and enhance digestive ability of growing-finishing pigs.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Key words
fermented feed without antibiotic/growing-finishing pigs/growth performance/intestinal flora/digestive ability分类
农业科技引用本文复制引用
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,(3):870-877,8.基金项目
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) （2011NK2013）
湖南省自然科学基金(14JJ4070) （14JJ4070）
湖南省2014年战略性新兴产业科技攻关项目(2014GK1054) （2014GK1054）
