Study on the effects of probiotic, Pediococcusacidilactici in the diet on some biological indices of Oscar Astronautsocellatus
Journal Title: International Research Journal of Applied and Basic Sciences - Year 2013, Vol 4, Issue 11
Abstract
A 126-day feeding trial was conducting on ornamental fish, Oscar (initial weight: 13.12 ± 1.34 g) to examine the effect of probiotic bacteria, Pediococcusacidilacticion the growth performance and innate immune response. The experimental diets were the consumed feed as control (C), C with fish-oil (O) or the probiotic and fish-oil (PA) and fed ad lib twice a day (n=3). The growth indices including specific growth rate (SGR), feed conversion ratio (FCR)) and immunological indices of fish fed the diets such as lysozyme activity, total immunoglobulin and alternative complement activity were measured. Fish fed the diet containing P.acidilactici (PA) displayed significantly (P<0.05) higher final weight (32.22 g), weight gain (54.14 %), SGR (2.15 %/day) and lower FCR (1.05) compared to those of other experimental diets. Total immunoglobulin (9.8 ?g/ml), lysozyme activity (3.5 ?g/ml) and alternative complement activity (2.1 U/ml) in the serum fish fed the diet PA were significantly (P<0.05) higher than those of fish fed the diets C (8.9 ?g/ml, 3.0 ?g/ml and 1.0 U/ml) and O (7.9 ?g/ml, 2.4 ?g/ml and 0.7 U/ml), respectively. The results showed the positive effects of Pediococcusacidilactici as a potent probiotic on growth performance and non-specific immune system of Oscar.
Authors and Affiliations
Omid Safari*| Department of Fishery, Faculty of Natural Resources and Environment, Ferdowsi University of Mashhad, Mashhad, Iran; omidsafari@um.ac.ir, MasoomehMehraban Sang Atash| Food Science and Technology Research Institute, ACECR, Mashhad Branch, Mashhad, Iran
Keywords
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