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微生态添加剂对肉仔鸡生长性能及肠道微生物平衡的影响

作  者:
李丹丹;杨彩梅;曾新福
单  位:
浙江惠嘉生物科技有限公司
关键词:
微生态添加剂;肉仔鸡;生长性能;肠道菌群
摘  要:
试验以1日龄艾维茵肉仔鸡(公母各半)540只为研究对象,研究一种新型微生态添加剂(肠乐欣2000C)对肉仔鸡生长性能和肠道微生物菌群的影响。试验分为空白对照组(基础日粮组)、抗生素对照组(基础日粮+10%硫酸粘菌素预混剂100g)、低剂量肠乐欣组(1.0×109cfu·kg-1饲料)、中剂量肠乐欣组(2.0×109cfu·kg-1饲料)、高剂量肠乐欣组(3.0×109cfu·kg-1饲料)5组,试验分0~21、22~42和43~49日龄3个阶段。试验结果表明,肠乐欣2000C可以提高1~49日龄肉仔鸡的日增重,并改善饲料利用效率,其适宜添加量为1.0~2.0×109cfu·kg-1;同时,适量的肠乐欣2000C可显著提高肉仔鸡盲肠内容物中乳酸杆菌的数量(P<0.05),显著降低粪样中大肠杆菌的数量(P<0.05)。
译  名:
Effect of Probiotics Additives on Growth Performance and Intestinal Flora Balance of Broiler Chickens
作  者:
LI Dandan, YANG Caimei, ZENG Xinfu ( Zhejiang Future Bio-technology Co., Ltd., Hangzhou 310030, China)
关键词:
probiotics additives; broiler chicken; growth performance; intestinal flora
摘  要:
This experiment is aimed to study the effect of a new-type probiotics (CLX2000C) on growth performance and intestinal flora, with 540 one-day old Avain broiler chickens(half male half female) as experimental objects. These animals were divided into five groups randomly: control group (basal diet), antibiotic group (basal diet+ 10% Colistin sulfate premix 100 g), low dosage CLX2000C group(1.0×109 cfu·kg-1 feed), medium dosage CLX 2000C group(2.0×109 cfu·kg-1 feed) , high dosage CLX2000C group(2.0×109 cfu·kg-1 feed). Total experiment phase was divided into three phase: 0-21 d, 22-42 d, 43-49 d. The result showed that CLX2000C could effectively elevate daily gain of the test chickens of 1-49 days age, and effectively improve feed efficiency; the best addition dosage is 1.0×109-2.0×109 cfu·kg-1; at the same time, proper amount of CLX2000C could effectively improve the amount of lactobacillus and decrease escherichia coli level(P<0.05).

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