【摘要】：為了探究乳酸菌素與包膜丁酸鈉共添加對(duì)仔豬腸道菌群、生產(chǎn)性能、腸道結(jié)構(gòu)及腹瀉情況的影響,將90頭體重7.53kg±0.49kg的28日齡斷奶仔豬隨機(jī)分為3組,A組為對(duì)照組,飼喂基礎(chǔ)日糧;B組為乳酸菌素組,飼喂基礎(chǔ)日糧+1.5g/kg乳酸菌素;C組為共添加組,飼喂基礎(chǔ)日糧+0.3g/kg包膜丁酸鈉1.5g/kg乳酸菌素,試驗(yàn)期28d。試驗(yàn)期間,檢測(cè)斷奶仔豬腸道中菌群種類及數(shù)量的變化,同時(shí)監(jiān)測(cè)并記錄各試驗(yàn)組仔豬的日采食量、日增重及仔豬的腹瀉情況。結(jié)果顯示,試驗(yàn)組仔豬腸道有害菌的含量與對(duì)照組相比明顯降低(P0.05);兩個(gè)試驗(yàn)組的平均日增重顯著高于對(duì)照組(P0.05),且呈現(xiàn)共添加組乳酸菌素組對(duì)照組的趨勢(shì);并且乳酸菌素組、共添組的料肉比均低于對(duì)照組且差異顯著(P0.05)。仔豬基礎(chǔ)日糧中同時(shí)添加乳酸菌素和包膜丁酸鈉后,腹瀉率與腹瀉指數(shù)分別降低42.72%與46.15%。觀察試驗(yàn)后仔豬腸道形態(tài),發(fā)現(xiàn)共添加組仔豬腸道形態(tài)更為完整,絨毛更長(zhǎng)更粗壯。表明仔豬基礎(chǔ)日糧中同時(shí)添加乳酸菌素與包膜丁酸鈉,能夠顯著提高仔豬的生產(chǎn)性能,保護(hù)腸道益生菌的含量,維持腸道完整形態(tài),并降低仔豬腹瀉率。
[Abstract]:In order to investigate the effects of lactobacillus and sodium butyrate on intestinal flora, production performance, intestinal structure and diarrhea of piglets, 90 weaned piglets with body weight of 7.53kg 鹵0.49kg were randomly divided into three groups, group A as control group. Basal diet; Group B was fed with 1.5g/kg lactic acid in basal diet and group C was fed with 0.3g/kg coated sodium butyrate 1.5g/kg lactic acid for 28 days. During the experiment, the species and quantity of bacteria in the intestinal tract of weaned piglets were detected, and the daily intake, daily gain and diarrhea of piglets in each group were monitored and recorded. The results showed that the content of harmful bacteria in the piglets of the experimental group was significantly lower than that of the control group (P0.05), the average daily gain of the two groups was significantly higher than that of the control group (P0.05), and the trend of the control group was the same as that of the lactic acid bacteriocin group. The ratio of feed to meat in lactic acid group was significantly lower than that in control group (P0.05). The diarrhea rate and diarrhea index decreased by 42.72% and 46.15%, respectively, when lactic acid and sodium butyrate were added to the basal diet of piglets. The intestinal morphology of piglets after the experiment was observed and it was found that the intestinal morphology of the piglets with the total addition group was more complete and the villi were longer and thicker. The results showed that the combination of lactic acid and sodium butyrate could significantly improve the performance of piglets, protect the content of intestinal probiotics, maintain the intact form of intestinal tract, and reduce the diarrhea rate of piglets.
【作者單位】： 吉林農(nóng)業(yè)科技學(xué)院;吉林省預(yù)防獸醫(yī)學(xué)重點(diǎn)實(shí)驗(yàn)室;吉林農(nóng)業(yè)大學(xué);
【基金】：吉林省教育廳科學(xué)技術(shù)研究項(xiàng)目(2015380) 吉林省科技發(fā)展計(jì)劃項(xiàng)目(20150623004TC)
【分類號(hào)】：S858.28

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