Respuesta productiva en primer alevinaje de trucha cabeza de acero (Oncorhynchus mykiss) de ovas premium con dos alimentos extruidos
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Authors
Sanchez Ferrer, Renato
Abstract
El objetivo fue evaluar la respuesta productiva de dos alimentos balanceados extruidos en la primera etapa de alevines de trucha cabeza de acero (Oncorhynchus mykiss). El experimento se realizó en los estanques de la ecloseria Vinchos, situado en el distrito de Canchayllo provincia de Jauja región Junin, perteneciente a la SAIS “Túpac Amaru” Ltda. N°1. Los alimentos balanceados utilizados en el experimento fueron: El alimento extruido la Molina (T1) que se realiza en la Planta de Alimentos Balanceados de la Universidad Nacional Agraria La Molina, y el alimento extruido Nicovita (T2) de la empresa Vitapro. La evaluación se realizó durante 64 días, para lo cual se utilizaron 85836 alevines de trucha cabeza de acero con peso promedio de 142 gr. Estos peces experimentales fueron distribuidos en dos tratamientos con tres repeticiones de 14306 peces cada uno. Los parámetros de evaluación fueron ganancia de biomasa, consumo de alimento, conversión alimentaria, sobrevivencia, tasa de crecimiento y costo por kilogramo ganado. El modelo estadístico empleado fue el Diseño Completamente al Azar (D.C.A.), se realizó el análisis de varianza y la prueba de Tukey para evaluar las diferencias entre los promedios de los tratamientos y para el parámetro sobrevivencia se utilizó chi-cuadrado. Los resultados obtenidos para los parámetros evaluados consumo de alimento, conversión alimenticia, sobrevivencia y costo de alimentación mostraron diferencias significativas (α<0.05); sin embargo, en los parámetros, ganancia de peso y tasa de crecimiento, solo se observa un mayor rendimiento numérico al tratamiento 2 (T2). En conclusión, los resultados obtenidos indican que se obtuvo una mejor respuesta productiva con el tratamiento 1 (T1) por obtener un mayor porcentaje de sobrevivencia y menor costo por kilogramo ganado en la primera etapa de alevines de trucha cabeza de acero.
The objective was to evaluate the productive response of two extruded balanced feeds in the first stage of steelhead trout fries (Oncorhynchus mykiss). The experiment was carried out in the ponds of the Vinchos hatchery, located in the district of Canchayllo, province of Jauja, region Junín, belonging to the SAIS “Túpac Amaru” Ltda. N°1. The balanced foods used in the experiment were: La Molina extruded food (T1) that is made in the Balanced Food Plant of the La Molina National Agrarian University, and Nicovita extruded food (T2) from the Vitapro S.A company. The evaluation was carried out during 64 days, for which 85,836 steelhead trout fingerlings with an average weight of 142 g were used. These experimental fish were distributed in two treatments with three repetitions of 14,306 fish each. The evaluation parameters were biomass gain, feed intake, feed conversion, survival, growth rate and cost per kilogram gained. The statistical model used was the Completely Random Design (D.C.A.), the analysis of variance and the Tukey test were performed to evaluate the differences between the means of the treatments and for the survival parameter, the chisquare was used. The results obtained for the evaluated parameters feed intake, feed conversion, survival and cost per kilogram gained showed significant differences (α<0.05); however, in the parameters, weight gain and growth rate, only a higher numerical performance is observed for treatment 2 (T2). In conclusion, the results obtained indicate that a better productive response was obtained with treatment 1 (T1) by obtaining a higher percentage of survival and lower cost per kilogram gained in the first stage of steelhead trout fries.
The objective was to evaluate the productive response of two extruded balanced feeds in the first stage of steelhead trout fries (Oncorhynchus mykiss). The experiment was carried out in the ponds of the Vinchos hatchery, located in the district of Canchayllo, province of Jauja, region Junín, belonging to the SAIS “Túpac Amaru” Ltda. N°1. The balanced foods used in the experiment were: La Molina extruded food (T1) that is made in the Balanced Food Plant of the La Molina National Agrarian University, and Nicovita extruded food (T2) from the Vitapro S.A company. The evaluation was carried out during 64 days, for which 85,836 steelhead trout fingerlings with an average weight of 142 g were used. These experimental fish were distributed in two treatments with three repetitions of 14,306 fish each. The evaluation parameters were biomass gain, feed intake, feed conversion, survival, growth rate and cost per kilogram gained. The statistical model used was the Completely Random Design (D.C.A.), the analysis of variance and the Tukey test were performed to evaluate the differences between the means of the treatments and for the survival parameter, the chisquare was used. The results obtained for the evaluated parameters feed intake, feed conversion, survival and cost per kilogram gained showed significant differences (α<0.05); however, in the parameters, weight gain and growth rate, only a higher numerical performance is observed for treatment 2 (T2). In conclusion, the results obtained indicate that a better productive response was obtained with treatment 1 (T1) by obtaining a higher percentage of survival and lower cost per kilogram gained in the first stage of steelhead trout fries.
Description
Universidad Nacional Agraria La Molina. Facultad de Zootecnia. Departamento Académico de Nutrición
Keywords
Trucha cabeza de acero
Citation
Date
2020
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