Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)

Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)

A feed trial conducted with juvenile yellowtail kingfish (Seriola lalandi) was designed to address the effect of dietary cholesterol content on growth performance and the cholesterol concentration in liver and muscle. For 60 days fish were fed four diets based on defatted fish meal, soy protein conc...

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Autores principales: Guerra-Olvera, Fernando M, Viana, María Teresa
Formato: info:eu-repo/semantics/article
Lenguaje:eng
Publicado: Iniversidad Autónoma de Baja California 2015
Acceso en línea:https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2514
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language eng
description A feed trial conducted with juvenile yellowtail kingfish (Seriola lalandi) was designed to address the effect of dietary cholesterol content on growth performance and the cholesterol concentration in liver and muscle. For 60 days fish were fed four diets based on defatted fish meal, soy protein concentrate, cholesterol-free fish oil, canola oil, and olive oil, with four different concentrations of cholesterol (treatments Ch0.0, Ch0.05, Ch0.12, and Ch0.19 containing 530, 2880, 4120, and 6170 mg kg–1 of crude fat, respectively). After 60 days, maximum weight gain was obtained with diet Ch0.05, and it was significantly higher than that obtained with diets Ch0.0 and Ch0.19, but not different from that obtained with Ch0.12. Cholesterol concentration in liver and muscle tissues was not affected by the diet, showing no significant differences among dietary treatments with levels reported as normal. Though cholesterol biosynthesis could not be measured in the present work, we discuss the possibility that fish are able to synthesize cholesterol when fed diets containing no or less cholesterol than required, but at the expense of energy consumption, limiting fish growth. We conclude that cholesterol content in aquafeeds affects fish growth when diets are formulated with vegetable ingredients, and the optimal content should be between 2880 and 4120 mg kg–1 of crude fat to avoid consequent cholesterol accumulation in liver or muscle tissues. 
format info:eu-repo/semantics/article
author Guerra-Olvera, Fernando M
Viana, María Teresa
spellingShingle Guerra-Olvera, Fernando M
Viana, María Teresa
Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
author_facet Guerra-Olvera, Fernando M
Viana, María Teresa
author_sort Guerra-Olvera, Fernando M
title Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
title_short Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
title_full Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
title_fullStr Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
title_full_unstemmed Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi)
title_sort effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (seriola lalandi)
publisher Iniversidad Autónoma de Baja California
publishDate 2015
url https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2514
_version_ 1792610214388695040
spelling repositorioinstitucional-20.500.12930-74862023-05-09T14:30:57Z Effect of dietary cholesterol content on growth and its accumulation in liver and muscle tissues of juvenile yellowtail kingfish (Seriola lalandi) Efecto del contenido de colesterol en las dietas y su acumulación en hígado y músculo en juveniles de jurel de Castilla (Seriola lalandi) Guerra-Olvera, Fernando M Viana, María Teresa A feed trial conducted with juvenile yellowtail kingfish (Seriola lalandi) was designed to address the effect of dietary cholesterol content on growth performance and the cholesterol concentration in liver and muscle. For 60 days fish were fed four diets based on defatted fish meal, soy protein concentrate, cholesterol-free fish oil, canola oil, and olive oil, with four different concentrations of cholesterol (treatments Ch0.0, Ch0.05, Ch0.12, and Ch0.19 containing 530, 2880, 4120, and 6170 mg kg–1 of crude fat, respectively). After 60 days, maximum weight gain was obtained with diet Ch0.05, and it was significantly higher than that obtained with diets Ch0.0 and Ch0.19, but not different from that obtained with Ch0.12. Cholesterol concentration in liver and muscle tissues was not affected by the diet, showing no significant differences among dietary treatments with levels reported as normal. Though cholesterol biosynthesis could not be measured in the present work, we discuss the possibility that fish are able to synthesize cholesterol when fed diets containing no or less cholesterol than required, but at the expense of energy consumption, limiting fish growth. We conclude that cholesterol content in aquafeeds affects fish growth when diets are formulated with vegetable ingredients, and the optimal content should be between 2880 and 4120 mg kg–1 of crude fat to avoid consequent cholesterol accumulation in liver or muscle tissues.  Un ensayo de alimentación realizado con juveniles de jurel de Castilla (Seriola lalandi) fue diseñado para evaluar el efecto de distintas concentraciones de colesterol en la dieta sobre el crecimiento de los peces y la acumulación de colesterol en hígado y músculo. Los juveniles de jurel de Castilla fueron alimentados durante 60 días con cuatro dietas que contenían cuatro niveles de colesterol (tratamientos Ch0.0, Ch0.05, Ch0.12 y Ch0.19 con 530, 2880, 4120 y 6170 mg kg–1 de grasa cruda, respectivamente). Las dietas se elaboraron con harina de pescado desgrasada, concentrado de proteína de soya, aceite de pescado sin colesterol, aceite de canola y aceite de oliva. Después de 60 días, el máximo aumento de peso se registró para los peces alimentados con la dieta Ch0.05, y fue significativamente mayor que el peso obtenido con las dietas Ch0.0 y Ch0.19, pero no diferente del obtenido con Ch0.12. La concentración de colesterol en los tejidos de hígado y músculo no se vio afectada por la dieta, puesto que no se observaron diferencias significativas entre los tratamientos con niveles reportados como normal. A pesar de no haber sido posible registrar cuantitativamente la biosíntesis del colesterol en el presente trabajo, se discute la posibilidad de que los peces son capaces de sintetizar el colesterol cuando su alimento lo carece o tiene niveles bajos, pero a expensas del consumo de energía, lo cual limita el crecimiento de los peces. Se concluye que el contenido de colesterol en los alimentos acuícolas formulados con ingredientes vegetales afecta el crecimiento de los peces, que el contenido óptimo es de 2880 a 4120 mg kg–1 de grasa cruda y que no tiene ningún efecto sobre la concentración de colesterol en el hígado o en los tejidos musculares. 2015-06-12 2021-06-03T03:55:26Z 2021-06-03T03:55:26Z info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article Artículo Arbitrado https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2514 10.7773/cm.v41i2.2514 https://hdl.handle.net/20.500.12930/7486 eng https://www.cienciasmarinas.com.mx/index.php/cmarinas/article/view/2514/1560 Copyright (c) 2015 Ciencias Marinas application/pdf Iniversidad Autónoma de Baja California Ciencias Marinas; Vol. 41 No. 2 (2015); 143-156 Ciencias Marinas; Vol. 41 Núm. 2 (2015); 143-156 2395-9053 0185-3880

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