Evaluation of probiotic in broiler diets based on plant proteins
Abstract: Two thousands and seven hundreds one day old unsexed broiler chicks (1350 Avian 43 and 1350 Arbor Acres chicks) were used to study the effect of adding Micro-Bac-LA as a probiotic to plant protein diet (PPS) on the performance of broiler chicks as compared with either animal (AP) or plant (PP) protein alone. Each strain was divided into 3 dietary treatment groups (animal protein, plant protein and plant protein supplemented with Micro-Bac-LA) in 2 x 3 factorial arrangement. The birds of each group were equally divided into 3 replicates of 150 birds each. Fish meal and poultry by-product meal were used as animal protein sources, while soybean meal , full-fat soybean meal and corn gluten meal were applied as plant proteins. Micro-Bac-LA was added to plant protein diet at the recommended level, i .e, 0.05% of the diet. Birds were reared under similar conditions of management up to 7 weeks of age. Birds fed on Micro-Bac-LA supplemented diets recorded the best values of weight gain (P<0.001) and feed conversion throughout the experimental period. The results indicated that avian chicks recorded the best performance during the growing period at 4th week of age compared with Arbor Acres chicks. While during the finishing period at 7th week of age, Arbor Acres chicks recorded better (P<0.001) feed conversion values than Avian chicks. Data of dressing and giblets percentages showed no significant differences regarding to either type of dietary protein or chicks strain. Micro-Bac-LA supplementation significantly improved crude protein, ether extract and crude fiber digestibilities and nitrogen balance. Avian chicks recorded higher values of nutrients digestibility and nitrogen balance than Arbor Acres chicks except for EE. Addition of Micro-Bac-LA to plant protein diet resulted in higher relative economic efficiency value than those of either animal protein diet (AP) or plant protein without supplementation (PP).
Keywords: broiler. performance. animal protein. growth promoter, probiotic
Publication year 2001
Pages 957-965
Availability location معهد بحوث الانتاج الحيوانى-شارع نادى الصيد- الدقى- الجيزة
Availability number
Organization Name
serial title Egyptian Journal Nutrition and Feeds
Author(s) from ARC
External authors (outside ARC)
    اسامة محمد الحسينى جامعة القاهرة
    ممدوح عمر عبد السميع جامعة القاهرة
Agris Categories Animal feeding
AGROVOC
TERMS		 Animal protein. Broiler chickens. Performance testing. Plant protein. Probiotics.
Proposed Agrovoc growth promoter;
Publication Type Journal
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