Apparent digestibility of diets with palm kernel cake on the productive performance of the native species Cichlasoma festae in the breeding stage

Abstract

The objective was to evaluate the effect of diets based on palm kernel cake on yield, calculating the increase in weight (IP), relative weight increase (IPR), growth rate (TC), incremental growth rate, Feed conversion, dry matter (DM), protein (CP) and crude energy (EB), as well as the cost of this feed and the mortality of the native redfish in the rearing stage. The fish were fed four diets (0, 4, 8 and 12% of palm kernel) and four replicates per treatment, for 30 days, housed in 16 cages in a pond. The final weight (PF), IP, IPR, TC, TCI, CA, the digestibility coefficients MS, PB and EB, feed costs and mortality were determined. No significant differences were found in the PF, IP, IPR, TC and TCI of the old colorada, among the treatments T1, T2 and T3 of inclusion of the palm kernel cake; Only the diet with the highest percentage of inclusion (T4) showed worse results with respect to the T1 diet. AC had a higher value in the control diet compared to the T2 diet (p <0.05). T4 showed the worst feed conversion (p> 0.05). As the percentage of palmists increased, the cost of the diet decreased significantly. The inclusion in the diet of the red color of up to 8% of palm kernel did not affect the parameters of productive yield studied. And, in addition, the diet is significantly cheaper