Efecto de diferentes niveles de energía manteniendo constante la relación caloría: proteína en juveniles de Sábalo cola roja (Brycon erythropterum)
Authors
Taboada León, Juan
Abstract
El objetivo de esta investigación fue determinar el efecto de diferentes niveles de energía manteniendo constante la relación caloría:proteína de 10 kcal energía digestible (ED)/g proteína bruta (PB), en juveniles de sábalo cola roja (Brycon erythropterum). El experimento fue realizado en el Laboratorio de Investigación en Nutrición y Alimentación de Peces y Crustáceos (LINAPC), del Departamento Académico de Nutrición, de la Universidad Nacional Agraria La Molina (UNALM). Los animales fueron acondicionados y alimentados con una dieta comercial durante 15 días y luego, fueron suministradas las dietas evaluadas ad libitum 3 veces al día durante 35 días, se utilizaron 72 juveniles de sábalo cola roja. Los peces se obtuvieron de la Estación Acuícola “Amazonic Aquaculture Service” (AAS) en Iquitos. Los datos obtenidos fueron analizados mediante un diseño de bloques completamente al azar, siendo el criterio de bloque el tamaño de los peces (pequeño, mediano y grande); se utilizó la prueba de Duncan para evaluar las diferencias entre los promedios de los tratamientos. Los tratamientos fueron formulados con diferentes niveles de energía, 2.9, 3.1 y 3.3 Mcal de ED/Kg, respectivamente con una relación de 10 kcal ED/g PC; el alimento fue formulado por programación lineal al mínimo costo. Los animales fueron asignados en grupos de 8 según el peso en acuarios. Se registraron 5 periodos de 7 días cada uno, al final de cada periodo fue determinado el consumo de alimento. La ganancia de peso e incremento de talla fueron determinados al final de la investigación. El incremento de energía manteniendo constante la relación caloría:proteína no afectó el consumo de alimento, ganancia de peso, el incremento de talla, la conversión alimentaria, la tasa de crecimiento, la relación de eficiencia proteica y el costo de alimentación, sin embargo, la dieta con 3.3 Mcal ED/kg y 33% de PC promovió los mejores parámetros productivos y costo de alimentación en esta fase del pez.
The purpose of this investigaton was to determinate the effect of different energy levels maintaining constant calorie:protein ratio of 10 kcal digestible energy (DE)/g crude protein (CP), in sábalo cola roja juveniles (Brycon erythropterum). The experiment was performed at the Laboratory of Nutrition and Feeding of Fish and Crustaceans (LINAPC), Academic Department of Nutrition of Universidad Nacional Agraria La Molina. The animals were acclimated and fed with commercial diet during 15 days and after, test diets were administered ad libitum three times a day during 35 days, 72 sábalo cola roja juveniles were used. Fish were obtained from “Amazonic Aquaculture Service” (AAS) fish farm from Iquitos. Data were analized using randomized complete block design, with the standard block size of fishes (small, medium and large), Duncan´s test was used to evaluate differences between means of treatment. The treatments were formulated with differences levels of energy, 2.9, 3.1 and 3.3 Mcal of DE/Kg, respectively with calorie:protein ratio of 10 kcal DE/g PC; the feed was made by least-cost linear programming. Fish were assigned to groups of 8 according to weight and located in tanks. Five periods of seven days each were registered, at the end of each period the feed intake was determined. Weight gain and body size growth was determined at the end of the research. Increased energy mantaining constant calorie:protein ratio did not affect feed intake, weight gain, body size growth, feed conversion, growth rate, protein efficiency rate and feed cost, however, diets with 33% PB and 3.3 Mcal DE/ kg improved productive parameters and feed cost in this stage of fish.
The purpose of this investigaton was to determinate the effect of different energy levels maintaining constant calorie:protein ratio of 10 kcal digestible energy (DE)/g crude protein (CP), in sábalo cola roja juveniles (Brycon erythropterum). The experiment was performed at the Laboratory of Nutrition and Feeding of Fish and Crustaceans (LINAPC), Academic Department of Nutrition of Universidad Nacional Agraria La Molina. The animals were acclimated and fed with commercial diet during 15 days and after, test diets were administered ad libitum three times a day during 35 days, 72 sábalo cola roja juveniles were used. Fish were obtained from “Amazonic Aquaculture Service” (AAS) fish farm from Iquitos. Data were analized using randomized complete block design, with the standard block size of fishes (small, medium and large), Duncan´s test was used to evaluate differences between means of treatment. The treatments were formulated with differences levels of energy, 2.9, 3.1 and 3.3 Mcal of DE/Kg, respectively with calorie:protein ratio of 10 kcal DE/g PC; the feed was made by least-cost linear programming. Fish were assigned to groups of 8 according to weight and located in tanks. Five periods of seven days each were registered, at the end of each period the feed intake was determined. Weight gain and body size growth was determined at the end of the research. Increased energy mantaining constant calorie:protein ratio did not affect feed intake, weight gain, body size growth, feed conversion, growth rate, protein efficiency rate and feed cost, however, diets with 33% PB and 3.3 Mcal DE/ kg improved productive parameters and feed cost in this stage of fish.
Description
Universidad Nacional Agraria La Molina. Facultad de Zootecnia. Departamento Académico de Nutrición
Keywords
Sábalo Cola Roja, Especies, Necesidades de nutrientes, Proteínas, Dietas, Valor energético, Ganancia de peso, Ingestión de nutrientes, Eficiencia de conversión del pienso, Evaluación, Perú
Citation
Date
2021
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Excepto si se señala otra cosa, la licencia del ítem se describe como info:eu-repo/semantics/openAccess