Open AccessEffects of dietary inactivated Pediococcus pentosaceus on growth performance, feed utilization and blood characteristics of red sea bream, Pagrus major juvenile
Author(s) -
Dawood M.A.O.,
Koshio S.,
Ishikawa M.,
Yokoyama S.
Publication year - 2016
Publication title -
aquaculture nutrition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.941
H-Index - 79
eISSN - 1365-2095
pISSN - 1353-5773
DOI - 10.1111/anu.12314
Subject(s) - pagrus major , biology , lysozyme , protein efficiency ratio , zoology , weight gain , food science , feed conversion ratio , pagrus , probiotic , mucus , fishery , body weight , fish <actinopterygii> , biochemistry , bacteria , ecology , endocrinology , genetics
A feeding trial was carried out to determine effects of dietary supplements of inactivated P ediococcus pentosaceus ( PP ) on growth, feed utilization and blood characteristics of red sea bream. Five diets containing different concentrations [0 ( PP 0), 1.6 × 10 10 ( PPI ), 1.6 × 10 11 ( PPII ), 1.6 × 10 12 ( PPIII ) and 3.2 × 10 12 ( PPIV ) cells g −1 ] of PP were fed to fish for 56 days. At the end of the feeding trial, the obtained results revealed a significant increase ( P < 0.05) in weight gain, specific growth rate and skin mucus secretion in all PP ‐supplemented groups when compared with control group. Moreover, fish fed PPIII and PPIV diets resulted in significantly higher final body weight, feed efficiency ratio and bactericidal activity than those of fish fed PP 0 diet ( P < 0.05). Further, fish fed the PPIII diet also had a higher feed intake, protein efficiency retention, haematocrit, mucus lysozyme activity ( LA ), plasma and serum proteins than those of PP 0 fed group ( P < 0.05). Similarly, fish fed PPIV diet resulted in a significant increase in serum LA , peroxidase activity and tolerance against low‐salinity stress test ( P < 0.05). Considering these promising results, we suggest that the supplementation of PP Prep improves growth and health conditions of Pagrus major .