Critical water quality parameters and certain non specific immune parameters of Clarias gariepinus juveniles raised in bioflocs system with cassava flour and rice bran as carbon sources

Abstract

This study was conducted to examine effects of bioflocs culture on critical water parameters and certain non specific immune parameters in C. gariepinus juveniles. This experiment was conducted for 72 days, in 9 separate tanks with an aerated blower. Bioflocs culture had two different sources of carbon addition. This research consists of three treatments, carbon sources were added at CN ratio of 15:1. Results showed no significant difference in dissolved oxygen, pH, and temperature in all treatments. However, conductivity, Total dissolved solids and salinity showed significant difference across all treatment groups. Total ammonia nitrogen, nitrate and nitrite showed significant difference between control and bioflocs treatments. Blood parameters examined were serum lysozyme, myeloperoxidase activity, neutrophils, lymphocytes and monocytes percentage. Serum lysozyme and myeloperoxidase showed significant difference across treatments while neutrophils percentage showed significant difference between bioflocs culture and control experiment. Lymphocytes and monocytes showed no significant difference.