Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)

The aim of this study was to determine the influence of lipid level in formulated feeds on growth, survival, hepatosomatic index (HSI) and proximate composition of liver and muscle in Brazilian codling. Three different experimental diets (40% crude protein) were made using 3%, 6% and 10% of fish oil...

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Autores principales: Bolasina, S.N., Fenucci, J.L.
Formato: JOUR
Lenguaje:English
Materias:
Diet formulation
Hepatosomatic index
Nutrition
body size
diet
fish
growth rate
lipid
nutrition
survival
Brazil
South America
Urophycis brasiliensis
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_07173326_v42_n1_p23_Bolasina
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_07173326_v42_n1_p23_Bolasina
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spelling todo:paper_07173326_v42_n1_p23_Bolasina2023-10-03T15:36:20Z Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858) Bolasina, S.N. Fenucci, J.L. Diet formulation Hepatosomatic index Nutrition body size diet fish growth rate lipid nutrition survival Brazil South America Urophycis brasiliensis The aim of this study was to determine the influence of lipid level in formulated feeds on growth, survival, hepatosomatic index (HSI) and proximate composition of liver and muscle in Brazilian codling. Three different experimental diets (40% crude protein) were made using 3%, 6% and 10% of fish oil, obtaining 5%, 8% and 11% of crude lipid, respectively. Daily feeding rate was kept at 3% of fish body weight. At the end of the 40 day trial, the fish were weighed and samples from muscle and liver were taken. The highest weight gain was obtained at the lowest dietary lipid level. The lowest survival rate and greater HSI was found in the group fed with the highest lipid level. Significant differences (P<0.05) in terms of growth, survival and hepatosomatic index were observed between the groups. The group with higher lipid levels showed larger pale livers. Liver protein, lipid and water content in this group were significantly different (P<0.05) to those of fish fed the other diets. Muscle protein content was significantly lower (P<0.05) in fish fed the highest lipid level compared with the other treatments. No significant differences (P<0.05) in ash content in both organs and in lipid and water content in the muscle were found among treatments. It is concluded that the more suitable dietary lipid levels for Brazilian codling growth and survival might be around 5%. JOUR English info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_07173326_v42_n1_p23_Bolasina
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language English
orig_language_str_mv English
topic Diet formulation
Hepatosomatic index
Nutrition
body size
diet
fish
growth rate
lipid
nutrition
survival
Brazil
South America
Urophycis brasiliensis
spellingShingle Diet formulation
Hepatosomatic index
Nutrition
body size
diet
fish
growth rate
lipid
nutrition
survival
Brazil
South America
Urophycis brasiliensis
Bolasina, S.N.
Fenucci, J.L.
Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
topic_facet Diet formulation
Hepatosomatic index
Nutrition
body size
diet
fish
growth rate
lipid
nutrition
survival
Brazil
South America
Urophycis brasiliensis
description The aim of this study was to determine the influence of lipid level in formulated feeds on growth, survival, hepatosomatic index (HSI) and proximate composition of liver and muscle in Brazilian codling. Three different experimental diets (40% crude protein) were made using 3%, 6% and 10% of fish oil, obtaining 5%, 8% and 11% of crude lipid, respectively. Daily feeding rate was kept at 3% of fish body weight. At the end of the 40 day trial, the fish were weighed and samples from muscle and liver were taken. The highest weight gain was obtained at the lowest dietary lipid level. The lowest survival rate and greater HSI was found in the group fed with the highest lipid level. Significant differences (P<0.05) in terms of growth, survival and hepatosomatic index were observed between the groups. The group with higher lipid levels showed larger pale livers. Liver protein, lipid and water content in this group were significantly different (P<0.05) to those of fish fed the other diets. Muscle protein content was significantly lower (P<0.05) in fish fed the highest lipid level compared with the other treatments. No significant differences (P<0.05) in ash content in both organs and in lipid and water content in the muscle were found among treatments. It is concluded that the more suitable dietary lipid levels for Brazilian codling growth and survival might be around 5%.
format JOUR
author Bolasina, S.N.
Fenucci, J.L.
author_facet Bolasina, S.N.
Fenucci, J.L.
author_sort Bolasina, S.N.
title Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
title_short Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
title_full Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
title_fullStr Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
title_full_unstemmed Effects of dietary lipid level on growth, survival and body composition of Brazilian codling (Urophycis brasiliensis Kaup, 1858)
title_sort effects of dietary lipid level on growth, survival and body composition of brazilian codling (urophycis brasiliensis kaup, 1858)
url http://hdl.handle.net/20.500.12110/paper_07173326_v42_n1_p23_Bolasina
work_keys_str_mv AT bolasinasn effectsofdietarylipidlevelongrowthsurvivalandbodycompositionofbraziliancodlingurophycisbrasiliensiskaup1858
AT fenuccijl effectsofdietarylipidlevelongrowthsurvivalandbodycompositionofbraziliancodlingurophycisbrasiliensiskaup1858
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