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Use of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae

dc.creatorCARLOS ALFONSO FRIAS QUINTANA
dc.creatorCARLOS ALFONSO ALVAREZ GONZALEZ
dc.creatorDARIEL TOVAR RAMIREZ
dc.creatorRAFAEL MARTINEZ GARCIA
dc.creatorSUSANA CAMARILLO COOP
dc.creatorEMYR SAUL PEÑA MARIN
dc.creatorMARIO ALBERTO GALAVIZ ESPINOZA
dc.date2017
dc.identifierhttp://cibnor.repositorioinstitucional.mx/jspui/handle/1001/741
dc.identifier.urihttp://dspace.cibnor.mx:8080/handle/123456789/1446
dc.description"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."
dc.formatapplication/pdf
dc.languageeng
dc.publisherMultidisciplinary Digital Publishing Institute
dc.relationinfo:eu-repo/semantics/reference/DOI/DOI: 10.3390/fishes2010003
dc.relationinfo:eu-repo/semantics/reference/URL/URL: http://www.mdpi.com/journal/fishes
dc.relationinfo:eu-repo/semantics/reference/ISSN/ISSN: 2410-3888
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rightshttp://creativecommons.org/licenses/by-nc-nd/4.0
dc.sourceFishes
dc.subjectinfo:eu-repo/classification/AUTOR/growth, cannibalism, digestive enzymes, fish larvae, dietary carbohydrate, protein sparing
dc.subjectinfo:eu-repo/classification/cti/2
dc.subjectinfo:eu-repo/classification/cti/24
dc.subjectinfo:eu-repo/classification/cti/2401
dc.subjectinfo:eu-repo/classification/cti/240102
dc.titleUse of Potato Starch in Diets of Tropical Gar (Atractosteus tropicus, Gill 1863) Larvae
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion


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