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Contribution to some aspects of the digestive tract anatomy and food evacuation of the Pacific fat sleeper Dormitator latrifrons

dc.contributoren-US
dc.creatorAréchiga-Palomera, Martín A.
dc.creatorNolasco-Soria, Héctor
dc.creatorCarrillo-Farnés, Olimpia
dc.creatorNieves-Rodríguez, Karen N.
dc.creatorVega-Villasante, Fernando
dc.date2023-08-31
dc.date.accessioned2024-05-02T20:44:50Z
dc.date.available2024-05-02T20:44:50Z
dc.identifierhttps://www.lajar.cl/index.php/rlajar/article/view/vol51-issue4-fulltext-3038
dc.identifier10.3856/vol51-issue4-fulltext-3038
dc.identifier.urihttps://revistaschilenas.uchile.cl/handle/2250/242625
dc.descriptionThe development of feeding protocols and the study of gastric evacuation or passage of food through the digestive tract is essential to generate information on the digestive physiology of organisms, as they help to quantify the daily ration to avoid any poor diet. In this sense, the present work aims to demonstrate some basic aspects of the fish Dormitator latifrons digestive physiology by evaluating the transit of food through the intestinal tract as a function of time. In a completely randomized standard design, juveniles of D. latifrons were fed ad libitum with commercial pellets. Five conditioned organisms were sacrificed every hour after a single feeding. The food bolus was collected at each sampling point, using polynomial regression models to analyze the passage of food through time in the digestive tract. The passage of food showed a nonlinear behavior in time, being the simple exponential decay model of two parameters (R2 = 0.630; P < 0.0001) the best to explain the evacuation of food through the digestive tract. This knowledge will generate better feeding protocols for this species with commercial importance and aquaculture potential.en-US
dc.formatapplication/pdf
dc.languageeng
dc.publisherPontificia Universidad Católica de Valparaísoen-US
dc.relationhttps://www.lajar.cl/index.php/rlajar/article/view/vol51-issue4-fulltext-3038/1755
dc.relationhttps://www.lajar.cl/index.php/rlajar/article/downloadSuppFile/vol51-issue4-fulltext-3038/2472
dc.rightsCopyright (c) 2023 Latin American Journal of Aquatic Researchen-US
dc.sourceLatin American Journal of Aquatic Research; Vol 51, No 4 (2023); 521-529en-US
dc.sourcePlataforma para envío de artículos - Latin American Journal of Aquatic Research; Vol 51, No 4 (2023); 521-529es-ES
dc.source0718-560X
dc.source0718-560X
dc.subjectDormitator latifrons; native fish species; passage of food; gastric evacuation; feeding protocols; gut motility, passage rateen-US
dc.titleContribution to some aspects of the digestive tract anatomy and food evacuation of the Pacific fat sleeper Dormitator latrifronsen-US
dc.typeinfo:eu-repo/semantics/article
dc.typeinfo:eu-repo/semantics/publishedVersion
dc.typeen-US
dc.typees-ES


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