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The effects of dietary probiotic Bacilli ( Bacillus subtilis and Bacillus licheniformis ) on growth performance, feed efficiency, body composition and immune parameters of whiteleg shrimp ( Litopenaeus vannamei ) postlarvae
Author(s) -
Sadat Hoseini Madani Nasim,
Adorian Taida Juliana,
Ghafari Farsani Hamed,
Hoseinifar Seyed Hossein
Publication year - 2018
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1111/are.13648
Subject(s) - litopenaeus , bacilli , biology , probiotic , bacillus licheniformis , feed conversion ratio , bacillus subtilis , food science , microbiology and biotechnology , shrimp , weight gain , zoology , bacteria , body weight , ecology , endocrinology , genetics
The present study investigates the effects of dietary commercial Bacilli probiotic ( Bacillus subtilis and Bacillus licheniformis ) on the growth performance, feed efficiency, body composition and immune parameters of Litopenaeus vannamei . The L. vannamei postlarvae were supplied and acclimated (in 500‐L tanks) to laboratory conditions for 14 days. The shrimps were fed with diets containing 1 × 10 4 and 1 × 10 8 CFU/g probiotic Bacilli for 60 days. At the end of the feeding trial, growth performance parameters, body composition, serum biochemical parameters and the hemocytes count were evaluated. Shrimps fed diets supplemented with 1 × 10 4 and 1 × 10 8 CFU/g probiotic Bacilli showed improved weight gain, total length, specific growth rate, FCR and survival compared with the control group. The body composition studies revealed higher dry matter, crude protein and ash in shrimps fed with 1 × 10 4 and 1 × 10 8 CFU/g probiotic Bacilli . Also, dietary administration of 1 × 10 4 and 1 × 10 8 CFU/g probiotic Bacilli decreased serum glucose and cortisol levels. However, significantly increased total protein, lysozyme and hemocyte cell count were noticed in shrimps fed 1 × 10 4 and 1 × 10 8 CFU/g probiotic Bacilli . In general, the findings of this study proved that oral administration of 1 × 10 4 and 1 × 10 8 CFU/g commercial probiotic Bacilli improved growth performance, feed utilization and immune parameters in whiteleg shrimp ( Litopenaeus vannamei ).