EVALUATION OF BIOGEN AND YEASTURE PROBIOTICS ON GROWTH PERFORMANCE AND IMMUNE RESPONSE OF NILE TILAPIA | ||||
| Kafrelsheikh Veterinary Medical Journal | ||||
| Article 4, Volume 9, Issue 1, April 2011, Page 54-70 PDF (604.5 K) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/kvmj.2011.113530 | ||||
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| Authors | ||||
| A.H. Sherif* 1; O.A. Saker2; M.E. Sharawy3 | ||||
| 1Department of fish disease, Animal health research institute. Kafr El- Sheikh provincial lab, agriculture research center. | ||||
| 2Department of biochemistry, Animal health research institute. Kafr El- Sheikh | ||||
| 3Department of animal production, Faculty of agriculture, Kafr El- Sheikh University. | ||||
| Abstract | ||||
| Growing concern for the high consumption of antibiotics in aquaculture has initiated a search for alternative methods of disease control by improving resistance against infectious disease which can be achieved by using of probiotics. The objective of the present study was to evaluate the influence of some feed additives (Yeasture and Biogen) on the immune response of O.niloticus. The experimental fish were divided into five groups, the first group was served as control fed on probiotic – free diet, the second and third groups were fed on diet supplemented with Yeasture (1 and 3 g/kg feed) and the fourth and fifth groups were fed on diet supplemented with Biogen (1 and 3 g/kg feed). After 70 days of feeding, the results indicated that, the fish groups which received diet supplemented with probiotics revealed highly significant growth performance and significant increase in immune response as detected in challenge test as probiotic fed fish groups showed high resistance to the challenged pathogenic microorganisms. | ||||
| Keywords | ||||
| probiotics; Oreochromis niloticus; growth performance; liver enzymes and challenge test | ||||
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