Título
Use of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae
Autor
CARLOS ALFONSO FRIAS QUINTANA
CARLOS ALFONSO ALVAREZ GONZALEZ
DARIEL TOVAR RAMIREZ
RAFAEL MARTINEZ GARCIA
SUSANA CAMARILLO COOP
EMYR SAUL PEÑA MARIN
MARIO ALBERTO GALAVIZ ESPINOZA
Nivel de Acceso
Acceso Abierto
Referencia de publicación
doi: DOI: 10.3390/fishes2010003
URL/URL: http://www.mdpi.com/journal/fishes
ISSN/ISSN: 2410-3888
Materias
Resumen o descripción
"Tropical gar, Atractosteus tropicus, is a carnivorous fish species from Southern México with high value and acceptance in local markets. Therefore, the present study aims to spare proteins in diets for larviculture of this species. An experiment was performed using three different experimental diets with increasing carbohydrate levels based on potato starch (S) and decreasing protein content (P) and total energy: 16% S (16% S–44% P), 22% S (22% S–40% P) and 28% S (28% S–36% P). Tropical gar larvae (five days post-hatching, 2.1 mm
average notochordal length) were assessed for growth, survival, degree of cannibalism, and digestive enzyme activities for 30 days. Highest growth and survival (24%), as well as the lowest cannibalism (33%), was seen in larvae fed the 28% S diet, and these larvae
also had the highest lipase, amylase and glucosidase activities (0.28, 0.56 and 0.11 units, respectively). Protease activity (alkaline protease, trypsin, chymotrypsin, and leucine aminopeptidase) was higher in the larvae fed the 22% S diet than in those given the 16% S and 28% S diets. In conclusion, dietary inclusion of potato starch at 28% S enhanced growth, survival and some digestive enzyme activities, and decreased cannibalism in the larval gar. Potato starch could replace dietary protein as a major source of energy for A. tropicus larvae, thereby reducing the cost of diets."
Editor
Multidisciplinary Digital Publishing Institute
Fecha de publicación
2017
Tipo de publicación
Artículo
Versión de la publicación
Versión publicada
Recurso de información
Formato
application/pdf
Fuente
Fishes
Idioma
Inglés
Repositorio Orígen
Repositorio Institucional CIBNOR
Descargas
469