Suitability was evaluated on the basis of digestibility, feed conversion ratio, condition factor and maximum growth rate.
The effects (p < 0.05) for the means of final weight, weight gain, apparent feed conversion and condition factor were observed for the analysis of productive performance.
The condition factor, apparent feed conversion, survival, and gonadosomatic and hepatosomatic indexes of the females were not influenced (P > 0.05) by the diets.
Final biomass, final individual weight, condition factor (CF), feed conversion ratio (FCR) and spleen-somatic index (SSI) were not significantly affected by nitrate exposure within the concentration range tested.
The focus of this study was to evaluate the effect of lysine on the productive (weight and length gain, apparent feed conversion, specific growth rate and condition factor) and reproductive performance of Rhamdia voulezi males confined in net cages during the first reproductive cycle.
Diets were fed for 8 weeks and at the end of the trial no statistical differences among treatments were observed for growth, survival, weight gain, specific growth rate, protein efficiency ratio, feed conversion ratio, survival, hepatosomatic index, or condition factor.
Differences in environmental impact in a LCA can be explained mainly by three factors: enteric CH4 emissions, feed conversion efficiencies and reproduction rates [4].
Thus, the economic advantage constituted by the improved feed conversion efficiency of the pelleted diet is clearly a factor which breeders will want to take into account.
Because cromolyn administration also improved the efficiency of feed conversion, the enhancement in BW gain is attributable to factors other than solely increased feed consumption.
The PBR is optimized by theoretical prediction of the conversion factor x as a function of the molecular feed, volume and reaction rate.
