Please use this identifier to cite or link to this item: http://cibnor.repositorioinstitucional.mx/jspui/handle/1001/741
Use of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae
RAFAEL MARTINEZ GARCIA
SUSANA CAMARILLO COOP
MARIO ALBERTO GALAVIZ ESPINOZA
Carlos Alfonso Frías Quintana
Carlos Alfonso Álvarez González
Dariel Tovar Ramírez
Emyr Saúl Peña Marín
Acceso Abierto
Atribución-NoComercial-SinDerivadas
DOI: 10.3390/fishes2010003
URL: http://www.mdpi.com/journal/fishes
ISSN: 2410-3888
growth, cannibalism, digestive enzymes, fish larvae, dietary carbohydrate, protein sparing
"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."
Multidisciplinary Digital Publishing Institute
2017
Artículo
Fishes
Inglés
COMPORTAMIENTO ANIMAL
Versión publicada
publishedVersion - Versión publicada
Appears in Collections:Artículos

Upload archives


File SizeFormat 
frias_c2017vol2(1).pdf1.6 MBAdobe PDFView/Open