Effect of dietary antibiotic, probiotic and prebiotic as growth promoters, on growth performance, carcass characteristics and hematological indices of broiler chickens.
Effect of dietary antibiotic, probiotic and prebiotic as growth promoters, on growth performance, carcass characteristics and hematological indices of broiler chickens.
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DOI：
10.3923/pjbs.2009.52.57
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发表时间：
2009-01-01
期刊：
影响因子：
--
通讯作者：
Mamooee, M
中科院分区：
文献类型：
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作者：
Ashayerizadeh, A;Dabiri, N;Mamooee, M
本试验旨在比较抗生素（黄霉素）、益生菌（primalac）、益生元（Biolex-MB）以及益生菌和益生元混合物（primalac+Biolex-MB）作为日粮生长促进剂对肉鸡生长性能、胴体特性和血液学指标的影响。将 300 日龄的 Ross 308 肉鸡平均分配到 30 个地板栏内，饲养 42 天。基础日粮的制定涵盖了 NRC (1994) 对于开胃期（0-21 天）和生长期（22-42 天）的建议，并被视为对照日粮。通过在基础对照饮食中分别添加抗生素（黄霉素）、益生菌（primalac）、益生元（Biolex-MB）以及primalac加Biolex-MB的混合物来配制四种测试饮食。每个处理使用六次重复。本研究结果表明，所使用的所有生长促进剂均改善了Ross 308肉鸡的生长指数。饲喂添加 primalac 的日粮的肉鸡记录到了最高显着性 (p0.05) 值，同时饲喂饲喂日粮或添加 Biolex-MB 的日粮的鸡只显示出较低的值。胴体和分割比例遵循相同的趋势。包括胆固醇在内的血液学参数在饲喂对照或补充黄霉素的饲料组中记录为最高值（p>0.05），同时饲喂补充 primalac 加 Biolex-MB 的饲料组的值较低。甘油三酯和极低密度脂蛋白胆固醇（VLDL）在对照组和添加黄霉素组的饲料中记录为最高浓度，而在添加primalac的饲料中发现最低浓度。本研究结果表明，益生菌和益生元作为生长促进剂可以替代非抗生素饲料添加剂，避免其对消费者产生有害副作用，并改善肉鸡的生长指数。
This experiment was conducted for comparison the effects of antibiotic (flavomycin), probiotic (primalac), prebiotic (Biolex-MB) and mixture ofprobiotic and prebiotic (primalac plus Biolex-MB) as dietary growth promoter on growth performance, carcass characteristics and hematological indices of broiler chickens. Three hundred day old Ross 308 broilers were equally distributed into 30 floor pens and reared for 42 day. A basal diet was formulated covering the recommendations of NRC (1994) for starter (0-21 days) and grower (22-42 days) periods and considered as control diet. Four tested diets were formulated by supplemented the basal control diet with antibiotic (flavomycin), probiotic (primalac), prebiotic (Biolex-MB) and mixture ofprimalac plus Biolex-MB, respectively. Six replicates were used for each treatment. The results of present study showed that all growth promoters used was improved growth indices of Ross 308 broilers. The highest significant (p0.05) value of breast was recorded for broilers fed the diet supplemented with primalac, meanwhile the lower value were showed for birds fed either diet or diet supplemented with Biolex-MB. The percent of carcass and cuts followed the same trend. Hematological parameter including cholesterol was recorded the highest (p>0.05) values groups fed the diets either control or supplemented with flavomycin, meanwhile the lower value was showed for bird fed diet supplemented primalac plus Biolex-MB. Triglycerides and very low density lipoprotein cholesterol (VLDL) were recorded the highest concentration for bird fed both control and diet supplemented with flavomycin groups while least concentration was found for bird fed diet supplemented with primalac. The results of present study revealed that probiotic and prebiotic as growth promoters can use as alternatives non-antibiotic feed additives to their free harmful side effects on the consumers and to improve broiler chickens growth indices.