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Artículo

Effect of different diets on digestive enzyme activities, in vitro digestibility, and midgut gland structure in juvenile crayfish, Cherax quadricarinatus

Sacristán, Hernán JavierIcon ; Fernandez Gimenez, Analia VeronicaIcon ; Chaulet, AnoukIcon ; Tadic, Luis Marcelo Franco; Fenucci, Jorge LinoIcon ; Lopez, Laura SusanaIcon
Fecha de publicación: 17/10/2016
Editorial: Wiley Blackwell Publishing, Inc
Revista: Acta Zoologica
ISSN: 0001-7272
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Otras Ciencias Biológicas

Resumen

This study investigated the effects of food quality on digestive enzyme activities, in vitro protein digestibility and histological traits of the midgut gland in juvenile crayfish Cherax quadricarinatus. Animals of a wide weight range were fed different diets: two commercial diets with high or low lipid content (high lipid and low lipid, respectively) and were compared with a reference diet (RF) previously formulated for this species. Proteinase, lipase and amylase activities were significantly influenced by diet and weight. Specific trypsin activity was significantly higher for crayfish fed with the HL diet. Trypsin activity depended on diet and weight. Protein digestibility showed that HL was the most digestible diet and RF the least. The weight of the animals did not affect protein digestibility. Structural disorganization, hypertrophy of B-cells and presence of large vacuoles in R-cells were mainly observed in juveniles fed with HL, indicative of malnutrition. Thus, our data suggest that the HL diet would not be the most appropriate for C. quadricarinatus, while RF diet would be more convenient for culture of this species.
Palabras clave: Cherax Quadricarinatus , Digestive Enzymes , Feed Formulations , In Vitro Protein Digestibility , Midgut Gland
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info:eu-repo/semantics/openAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/49574
DOI: http://dx.doi.org/10.1111/azo.12134
URL: https://onlinelibrary.wiley.com/doi/abs/10.1111/azo.12134
Colecciones
Articulos(IIMYC)
Articulos de INSTITUTO DE INVESTIGACIONES MARINAS Y COSTERAS
Citación
Sacristán, Hernán Javier; Fernandez Gimenez, Analia Veronica; Chaulet, Anouk; Tadic, Luis Marcelo Franco; Fenucci, Jorge Lino; et al.; Effect of different diets on digestive enzyme activities, in vitro digestibility, and midgut gland structure in juvenile crayfish, Cherax quadricarinatus; Wiley Blackwell Publishing, Inc; Acta Zoologica; 97; 4; 17-10-2016; 407-418
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