Efficacy of varying inclusion levels of oxalic acid on growth performance, carcass composition of Oreochromis niloticus and challenge test with Escherichia coli

The study investigated the efficacy of varying inclusion levels of oxalic acid on growth performance, carcass composition of Oreochromis niloticus and challenge test with Escherichia coli. O. niloticus of mean weight 7.00g ± 0.04 were fed with varying oxalic acid supplemented diets for 90 days. At the expiration of the feeding trials significant variations was recorded on growth performance indices and carcass composition of fish. The best growth was recorded in OAC4 which also had best protein retention. The culture water parameters (DO2, temperature, pH) were with the required limits. The study demonstrated that oxalic acid at 1.5% was able to improve growth and had highest survival in challenge test with E. coli.

Keywords

Oxalic acid; growth performance; carcass composition; Oreochromis niloticus

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Abstracto

Efficacy of varying inclusion levels of oxalic acid on growth performance, carcass composition of Oreochromis niloticus and challenge test with Escherichia coli