Efecto de la alimentación semiorgánica (hortalizas + concentrado) sobre productividad y calidad de la carne en truchas Arcoíris (Oncorhynchus mykiss)

Abstract

The intensive feeding and nutrition of trout has not complied with certain quality parameters such as taste of the final product; on the other hand, it is necessary to look for alternatives that allow optimizing production costs, the objective of this study is to know the effect of semi-organic feeding (vegetables + balanced feed) on factors such as weight (g), size (cm), color (Roche scale), production costs (USD/kg), canal yield (%) and weight of digestive organs (g). In addition, a tasting was carried out to evaluate using a hedonic scale of five levels odor, color, flavor, and texture. Three treatments were used, one per pool, each with 667 fry divided as follows: first treatment: (control) conventional feed (Gysis Excreting), second treatment: with low inclusion of vegetables (alevins 10%, juvenile 25% and fattening 50%) and third treatment: with high inclusion of vegetables (alevins 25%, juvenile 45% and fattening 75%). The data obtained were analyzed with descriptive statistics: mean, median, geometric median, and variance. Numerically, the second treatment shows the best results, both for weight, for size, and for organoleptic characteristics. When comparing the productive values with reference tables, it was possible to verify that they are within the expected range. In addition, an economic analysis was performed to evaluate the profitability of the enterprise, indicating a value greater than one, making the investment feasible