Open AccessEfficacy of Lactobacillus plantarum and Saccharomyces cerevisiae on growth improvement of hybrid Nile and Rufiji tilapia populations
Author(s) -
Levinus Leonard Mapenzi,
Matern S. P. Mtolera,
D.J. de Koning,
Aviti J. Mmochi
Publication year - 2021
Publication title -
western indian ocean journal of marine science
Language(s) - English
Resource type - Journals
ISSN - 0856-860X
DOI - 10.4314/wiojms.v20i1.4
Subject(s) - lactobacillus plantarum , nile tilapia , oreochromis , probiotic , biology , feed conversion ratio , zoology , food science , aquaculture , weight gain , salinity , fishery , microbiology and biotechnology , veterinary medicine , fish <actinopterygii> , lactic acid , body weight , ecology , bacteria , medicine , genetics , endocrinology
An investigation of the role of Lactobacillus plantarum and Saccharomyces cerevisiae on growth performance of hybrids from Oreochromis niloticus and Oreochromis urolepis urolepis was carried out in plastic tanks at 10 fish/m3 density and a salinity of 25 units. The probiotic treatments were 2, 4 and 6 g/kg feed while the control feed did not include any probiotics. Growth parameters were measured fortnightly and water quality parameters monitored every day. Survival rate and water quality factors revealed non-significant variations (p > 0.05). Final weight differed significantly among the treatments (p 0.05) between the control and 2 g/kg treatments. However, the 4 and 6 g/ kg feed treatments showed significant differences (p 0.05) among the treatments. Results of this study indicate that increasing the quantity of commercial probiotics in feeds improved growth rates. Condition factor observed in the treatments could be due to the role of the tested probiotics in improving the water quality of tanks. Therefore, probiotics could potentially be used to enhance coastal aquaculture development.