Impact of low dietary carbohydrate diets on some nutritional and clinicopathological parameters of cat fish [clarious lazara] infected with saprolegnia parasitica and exposed to copper nitrite

ABSTRACT

The effect of low dietary carbohydrate diet on catfish infested with Saprolegnia parasitica and treated with copper nitrite was studied for three weeks. Results obtained showed, nonsignificant decrease in levels of Hb, PCV% and iron with nonsignificant increase of creatinine. Significantly, marked elevations were recorded for serum copper, sodium and cortisol during the three weeks of the experimental period, while insulin, potassium, urea, ALT and AST were increased significantly during only the first and second week of experimental period. It was concluded that copper nitrite as a treatment for saprolegnia infestation in catfish fed low dietary carbohydrate diet produced metabolic stress, cell damage with malfunction of the hemopoietic system