Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)

Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)

Abstract The aim of this study was to evaluate the growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum). The experiment involved 388 fish (weight: 65.38 ± 20.00 g; age: 217 days), consisting of 252 fish from seven selectively bred families (18 fish per family) and 18 non-selectively bred fish (control group). Groups were placed in two 800-m² tanks. Biometric measurements were taken on nine occasions at 30-day intervals, for a period of 254 days. Weight and morphometric traits were evaluated. To describe the tambaqui growth behavior, we adopted the Gompertz nonlinear regression model. Greater growth (p < 0.05) was observed in selectively bred families compared with control group. Four families stood out with higher (p < 0.05) asymptotic values for weight (F1: 2448.7 g; F7: 2284.7 g; F5 2180.1 g; F4: 2080.5 g; and control: 1808.4 g) and other morphometric traits. None of the selectively bred families (except F5) had a higher growth rate and age at inflection point than the fish from control group. In conclusion, selectively bred and non-selectively bred fish present distinct growth curves, but some families have greatly superior growth.

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Main Authors: MARCOS,REBECA, RIBEIRO,RICARDO P., ABREU,JANESSA S. DE, FORNARI,DARCI C., OLIVEIRA,CARLOS A.L. DE, STREIT JR,DANILO P., BARROS,CAIO M.C.A. DE, LOPERA-BARRERO,NELSON M., CORRÊA FILHO,RUY A.C., POVH,JAYME A.
Format: Digital revista
Language:English
Published: Academia Brasileira de Ciências 2020
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000501012
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spelling oai:scielo:S0001-376520200005010122020-10-20Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)MARCOS,REBECARIBEIRO,RICARDO P.ABREU,JANESSA S. DEFORNARI,DARCI C.OLIVEIRA,CARLOS A.L. DESTREIT JR,DANILO P.BARROS,CAIO M.C.A. DELOPERA-BARRERO,NELSON M.CORRÊA FILHO,RUY A.C.POVH,JAYME A. Aquaculture asymptotic value fish of the Amazon basin selective breeding of tropical fish zootechnical performance Abstract The aim of this study was to evaluate the growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum). The experiment involved 388 fish (weight: 65.38 ± 20.00 g; age: 217 days), consisting of 252 fish from seven selectively bred families (18 fish per family) and 18 non-selectively bred fish (control group). Groups were placed in two 800-m² tanks. Biometric measurements were taken on nine occasions at 30-day intervals, for a period of 254 days. Weight and morphometric traits were evaluated. To describe the tambaqui growth behavior, we adopted the Gompertz nonlinear regression model. Greater growth (p < 0.05) was observed in selectively bred families compared with control group. Four families stood out with higher (p < 0.05) asymptotic values for weight (F1: 2448.7 g; F7: 2284.7 g; F5 2180.1 g; F4: 2080.5 g; and control: 1808.4 g) and other morphometric traits. None of the selectively bred families (except F5) had a higher growth rate and age at inflection point than the fish from control group. In conclusion, selectively bred and non-selectively bred fish present distinct growth curves, but some families have greatly superior growth.info:eu-repo/semantics/openAccessAcademia Brasileira de CiênciasAnais da Academia Brasileira de Ciências v.92 n.3 20202020-01-01info:eu-repo/semantics/articletext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000501012en10.1590/0001-3765202020190099
institution SCIELO
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language English
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author MARCOS,REBECA
RIBEIRO,RICARDO P.
ABREU,JANESSA S. DE
FORNARI,DARCI C.
OLIVEIRA,CARLOS A.L. DE
STREIT JR,DANILO P.
BARROS,CAIO M.C.A. DE
LOPERA-BARRERO,NELSON M.
CORRÊA FILHO,RUY A.C.
POVH,JAYME A.
spellingShingle MARCOS,REBECA
RIBEIRO,RICARDO P.
ABREU,JANESSA S. DE
FORNARI,DARCI C.
OLIVEIRA,CARLOS A.L. DE
STREIT JR,DANILO P.
BARROS,CAIO M.C.A. DE
LOPERA-BARRERO,NELSON M.
CORRÊA FILHO,RUY A.C.
POVH,JAYME A.
Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
author_facet MARCOS,REBECA
RIBEIRO,RICARDO P.
ABREU,JANESSA S. DE
FORNARI,DARCI C.
OLIVEIRA,CARLOS A.L. DE
STREIT JR,DANILO P.
BARROS,CAIO M.C.A. DE
LOPERA-BARRERO,NELSON M.
CORRÊA FILHO,RUY A.C.
POVH,JAYME A.
author_sort MARCOS,REBECA
title Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
title_short Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
title_full Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
title_fullStr Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
title_full_unstemmed Growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum)
title_sort growth curve of selectively bred and non-selectively bred tambaqui (colossoma macropomum)
description Abstract The aim of this study was to evaluate the growth curve of selectively bred and non-selectively bred tambaqui (Colossoma macropomum). The experiment involved 388 fish (weight: 65.38 ± 20.00 g; age: 217 days), consisting of 252 fish from seven selectively bred families (18 fish per family) and 18 non-selectively bred fish (control group). Groups were placed in two 800-m² tanks. Biometric measurements were taken on nine occasions at 30-day intervals, for a period of 254 days. Weight and morphometric traits were evaluated. To describe the tambaqui growth behavior, we adopted the Gompertz nonlinear regression model. Greater growth (p < 0.05) was observed in selectively bred families compared with control group. Four families stood out with higher (p < 0.05) asymptotic values for weight (F1: 2448.7 g; F7: 2284.7 g; F5 2180.1 g; F4: 2080.5 g; and control: 1808.4 g) and other morphometric traits. None of the selectively bred families (except F5) had a higher growth rate and age at inflection point than the fish from control group. In conclusion, selectively bred and non-selectively bred fish present distinct growth curves, but some families have greatly superior growth.
publisher Academia Brasileira de Ciências
publishDate 2020
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652020000501012
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