Lipid requirement of bay snook (Petenia splendida Günther, 1862) juveniles
-
Published:2020-09-01
Issue:4
Volume:48
Page:674-685
-
ISSN:0718-560X
-
Container-title:Latin American Journal of Aquatic Research
-
language:
-
Short-container-title:Lat. Am. J. Aquat. Res.
Author:
Rodríguez-Estrada Uriel,Méndez-Marín Otilio,Pérez-Morales Alfredo,Martínez-García Rafael,Peña-Marín Emyr,Civera-Cerecedo Roberto,Goytortua-Bores, E. Ernesto,Martínez-Yáñez Rosario,Alvarez-González Carlos A.
Abstract
This research study is focused on the lipid requirements of Petenia splendida (0.65 ± 0.19 g) juveniles. Fish were fed with trout commercial diet (Silver Cup™ - 45% protein and 16% lipids), as control diet - CD (which is usually used to feed this species at commercial scale), and four isoproteic (45% crude protein) diet formulated with different lipid levels (5, 10, 15 and 20%). Diets were administered for 60 days by triplicate per treatment. Our results showed that fish fed with 10, 15 and 20% lipid levels were significantly higher (P < 0.05) in average weight and total length. Same treatments were significantly lower (P < 0.05) in terms of FCR compared to those shown in 5% and CD. However, fish fed 20% lipid level, showed a significant decrease in WG and a significant (P < 0.05) increase in FCR compared to those shown in 15% lipid level. Fish fed with 15% showed the highest weight gain and the lowest FCR compared with the rest of the treatments. Lipid efficiency ratio (LER) showed significant (P < 0.05) differences among experimental groups. Compared to other diets containing lipid levels (5, 10, and 20%) fish fed 15% diet recorded the lowest protein and lipid content in whole body. Additionally, based on second order polynomial regression analysis of WG, it was demonstrated that 16.2% lipid provides an optimal growth for P. splendida.
Publisher
Pontificia Universidad Catolica de Valparaiso
Subject
Aquatic Science,Oceanography
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献