Comparison between the effects of two multi-strain probiotics and antibiotic on growth performance, carcass characterist
Journal Title: Scientific Journal of Animal Science - Year 2014, Vol 3, Issue 4
Abstract
This experiment was conducted to evaluate the effect of two types of probiotic and antibiotic virginiamycin on performance, carcass characteristics, gastrointestinal microbial population and hematological indices of broiler chickens. Based a randomized completely design, three hundred day old Ross 308 broilers were reared for 42 day under 4 experimental treatments including a corn-soy basal diet as control treatment which was supplemented with antibiotic, fermented probiotic and commercial probiotic (Bipluse-2B®). Five replicate were assigned to each dietary treatment. The results indicated that the use of antibiotic improved body weight gain and feed conversion ratio as compared to control and commercial probiotic treatments (P<0.05). Also, the use of fermented probiotic relatively improved body weight gain and feed conversion ratio as compared to control. Adding commercial probiotic to the basal diet increased the relative weight of gizzard than fermented probiotic and reduced the relative weight of abdominal fat pad than antibiotic treatment (P<0.05). Fermented probiotic supplementation significantly lowered the pH of ileum than those control and antibiotic treatments. Antibiotic virginiamycin and fermented probiotic were effective to reduce ileum coliforms population when compared to control and commercial probiotic treatments (P<0.05). The use of commercial probiotic reduced the blood concentration of cholesterol when compared to control birds The serum concentration of triglyceride and VLDL in birds under fermented probiotic significantly was lower compared to antibiotic treatment. According to the results of experiment, especially for body weight gain, Adding fermented probiotic in broiler chickens diet could be introduced as an effective alternative for antibiotics.
Authors and Affiliations
O. Ashayerizadeh*| Department of Animal and Poultry Nutrition., B. Dastar| Department of Animal and Poultry Nutrition., F. Samadi| Department of Animal and Poultry Physiology., M. Khomeiri| Department of Food Science and Technology., A. Yamchi| Department of Plant Breeding and Biotechnology., S. Zerehdaran| Department of Genetics and Animal Breeding, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Golestan, Iran.
Keywords
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- EP ID EP686
- DOI 10.14196/sjas.v3i4.1290
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