Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile

Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile

ABSTRACT. Ractopamine is a drug used as an additive in animal production to improve growth, body composition, and production efficiency, although its use in fish is still poorly known. This study aimed to evaluate ractopamine hydrochloride (RAC) effects at increasing levels (0, 10, 20, and 40 mg kg&#8722;1) in Nile tilapia (Oreochromis niloticus) diets during 40 days by considering growth performance, body composition, and muscle fiber morphometry. One hundred and twelve fish (mean initial weight 518.63 ± 5.49 g) were housed in 16 circular tanks (450 L), following a completed randomized design with four treatments and four replicates. Body composition was significantly affected (P < 0.05), and the content of lipids in fish fillets dropped 26.7% (20 mg kg&#8722;1 RAC) and 26.1% (40 mg kg&#8722;1 RAC), as well as the amount of unsaturated fatty acids C14:0 and C18:0 in fish fillets (P < 0.05) by treatment with 10 mg kg&#8722;1 of RAC. Results demonstrate that fish fed 20 mg kg&#8722;1 RAC for 40 days changed Nile tilapia fillet chemical composition, decreasing lipid levels, altering the fatty acid profile, and increasing protein levels. RAC did not affect any productive performance parameters evaluated for muscle fiber morphometry.

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Main Authors: Dias Trombeta,Thiago, Uribe Tapia,Eduardo, Olivetti de Mattos,Bruno, Tatiane Pereira,Raquel, Dallago,Bruno, Silva Leal,Renato, Crovatto Veras,Galileu, Wacyk,Jurij
Format: Digital revista
Language:English
Published: Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar 2023
Online Access:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2023000200210
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spelling oai:scielo:S0718-560X20230002002102023-05-22Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profileDias Trombeta,ThiagoUribe Tapia,EduardoOlivetti de Mattos,BrunoTatiane Pereira,RaquelDallago,BrunoSilva Leal,RenatoCrovatto Veras,GalileuWacyk,Jurij Oreochromis niloticus &#946;-adrenergic lipolysis muscle fiber protein deposition lipid oxidation ABSTRACT. Ractopamine is a drug used as an additive in animal production to improve growth, body composition, and production efficiency, although its use in fish is still poorly known. This study aimed to evaluate ractopamine hydrochloride (RAC) effects at increasing levels (0, 10, 20, and 40 mg kg&#8722;1) in Nile tilapia (Oreochromis niloticus) diets during 40 days by considering growth performance, body composition, and muscle fiber morphometry. One hundred and twelve fish (mean initial weight 518.63 ± 5.49 g) were housed in 16 circular tanks (450 L), following a completed randomized design with four treatments and four replicates. Body composition was significantly affected (P < 0.05), and the content of lipids in fish fillets dropped 26.7% (20 mg kg&#8722;1 RAC) and 26.1% (40 mg kg&#8722;1 RAC), as well as the amount of unsaturated fatty acids C14:0 and C18:0 in fish fillets (P < 0.05) by treatment with 10 mg kg&#8722;1 of RAC. Results demonstrate that fish fed 20 mg kg&#8722;1 RAC for 40 days changed Nile tilapia fillet chemical composition, decreasing lipid levels, altering the fatty acid profile, and increasing protein levels. RAC did not affect any productive performance parameters evaluated for muscle fiber morphometry.info:eu-repo/semantics/openAccessPontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del MarLatin american journal of aquatic research v.51 n.2 20232023-05-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2023000200210en10.3856/vol51-issue2-fulltext-2969
institution SCIELO
collection OJS
country Chile
countrycode CL
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access En linea
databasecode rev-scielo-cl
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region America del Sur
libraryname SciELO
language English
format Digital
author Dias Trombeta,Thiago
Uribe Tapia,Eduardo
Olivetti de Mattos,Bruno
Tatiane Pereira,Raquel
Dallago,Bruno
Silva Leal,Renato
Crovatto Veras,Galileu
Wacyk,Jurij
spellingShingle Dias Trombeta,Thiago
Uribe Tapia,Eduardo
Olivetti de Mattos,Bruno
Tatiane Pereira,Raquel
Dallago,Bruno
Silva Leal,Renato
Crovatto Veras,Galileu
Wacyk,Jurij
Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
author_facet Dias Trombeta,Thiago
Uribe Tapia,Eduardo
Olivetti de Mattos,Bruno
Tatiane Pereira,Raquel
Dallago,Bruno
Silva Leal,Renato
Crovatto Veras,Galileu
Wacyk,Jurij
author_sort Dias Trombeta,Thiago
title Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
title_short Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
title_full Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
title_fullStr Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
title_full_unstemmed Ractopamine supplementation in diets for Nile tilapia (Oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
title_sort ractopamine supplementation in diets for nile tilapia (oreochromis niloticus) at grow-out phase: effect on body composition and fatty acid profile
description ABSTRACT. Ractopamine is a drug used as an additive in animal production to improve growth, body composition, and production efficiency, although its use in fish is still poorly known. This study aimed to evaluate ractopamine hydrochloride (RAC) effects at increasing levels (0, 10, 20, and 40 mg kg&#8722;1) in Nile tilapia (Oreochromis niloticus) diets during 40 days by considering growth performance, body composition, and muscle fiber morphometry. One hundred and twelve fish (mean initial weight 518.63 ± 5.49 g) were housed in 16 circular tanks (450 L), following a completed randomized design with four treatments and four replicates. Body composition was significantly affected (P < 0.05), and the content of lipids in fish fillets dropped 26.7% (20 mg kg&#8722;1 RAC) and 26.1% (40 mg kg&#8722;1 RAC), as well as the amount of unsaturated fatty acids C14:0 and C18:0 in fish fillets (P < 0.05) by treatment with 10 mg kg&#8722;1 of RAC. Results demonstrate that fish fed 20 mg kg&#8722;1 RAC for 40 days changed Nile tilapia fillet chemical composition, decreasing lipid levels, altering the fatty acid profile, and increasing protein levels. RAC did not affect any productive performance parameters evaluated for muscle fiber morphometry.
publisher Pontificia Universidad Católica de Valparaíso. Facultad de Recursos Naturales. Escuela de Ciencias del Mar
publishDate 2023
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-560X2023000200210
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