本文關(guān)鍵詞： 益生菌 肉雞 生產(chǎn)性能 免疫功能 腸道菌群　出處：《家畜生態(tài)學(xué)報(bào)》2016年11期 　論文類型：期刊論文

【摘要】：為探討不同益生菌制劑對肉雞生長性能、免疫功能和腸道菌群的影響。選用1日齡AA肉仔雞400只,隨機(jī)分為4組。對照組A飼喂基礎(chǔ)日糧,B、C、D試驗(yàn)組在基礎(chǔ)日糧中按照1mL/kg比例分別添加乳酸菌、丁酸菌和復(fù)合菌制劑,預(yù)試期5d,正試期35d,測定各組生產(chǎn)性能、免疫功能和腸道菌群數(shù)量。結(jié)果表明:(1)D組可提高日增重和降低料重比(P0.05),B、C組在后期(26~40日齡)降低料重比(P0.05);(2)在26日齡和40日齡,B、D組能提高免疫器官指數(shù)(P0.05),C組在40日齡可提高脾臟指數(shù)和法氏囊指數(shù)(P0.05);(3)D組抗體效價(jià)最高,在26、40日齡顯著高于A組(P0.05);4)不同益生菌均可增加盲腸內(nèi)乳酸菌的數(shù)量(P0.05),降低盲腸內(nèi)大腸桿菌的數(shù)量(P0.05)。由試驗(yàn)可知,日糧中添加乳酸菌、丁酸菌和復(fù)合菌均可促進(jìn)肉雞的生產(chǎn)性能,增強(qiáng)免疫功能,改善腸道菌群,其中復(fù)合菌優(yōu)于乳酸菌,復(fù)合菌協(xié)同共生、優(yōu)勢互補(bǔ),應(yīng)用效果比單一菌劑更顯著。
[Abstract]:In order to study the effects of different probiotics on growth performance, immune function and intestinal flora of broilers, 400 AA broilers of 1 day old were randomly divided into 4 groups. In group D, lactic acid bacteria, butyric acid bacteria and compound bacteria were added to the basal diet according to the ratio of 1 mL / kg. The pretest period was 5 days and the positive trial period was 35 days. The production performance of each group was measured. The results showed that group D could increase daily gain and decrease feed weight ratio (P0.05B). In group C, the ratio of feed to weight was decreased by P0.05U at the later stage of 26m 40 days. (2) at the age of 26 days and 40 days, the immune organ index could be increased in group B (P 0.05) and the index of spleen and bursa of bursa (P 0.05) in group C (group C) at the age of 40 days. The titer of antibody in group D was the highest, which was significantly higher than that in group A at 2640 days. 4) different probiotics could increase the number of lactic acid bacteria in cecum and decrease the number of Escherichia coli in cecum. Both butyric acid bacteria and compound bacteria could promote the performance of broiler, enhance immune function and improve intestinal flora, among which compound bacteria were superior to lactic acid bacteria, the compound bacteria were symbiotic and complementary, and the application effect was more remarkable than that of single bacteria.
【作者單位】： 楊凌職業(yè)技術(shù)學(xué)院;
【基金】：陜西省教育廳專項(xiàng)科研計(jì)劃項(xiàng)目(15JK1844)
【分類號】：S831.5
【正文快照】： 在養(yǎng)雞生產(chǎn)中為了預(yù)防疾病的發(fā)生,普遍大量使用抗生素等藥物,濫用藥物引起畜禽抗病力下降,并產(chǎn)生耐藥性和藥物殘留,這不僅影響了家禽產(chǎn)品的質(zhì)量,且殘留有抗生素的產(chǎn)品對人體健康具有潛在性危害[1],這些副作用越來越被認(rèn)識和肯定。許多國家已經(jīng)禁止或限制某些抗生素的使用[2]。

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