| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000435891 |
| ISSN: | 0001-3765 |
| Authors: | Marcos, Rebeca1 Ribeiro, Ricardo P2 Abreu, Janessa S. de1 Fornari, Darci C3 Oliveira, Carlos A.L. de2 Streit-Junior, Danilo P4 Barros, Caio M.C.A. de1 Lopera Barrero, Nelson M5 Correa Filho, Ruy A.C6 Povh, Jayme A6 |
| Institutions: | 1Universidade Federal de Mato Grosso, Faculdade de Agronomia e Zootecnia, Cuiaba, Mato Grosso. Brasil 2Universidade Estadual de Maringa, Departamento de Zootecnia, Maringa, Parana. Brasil 3Auburn University, Aquaculture and Aquatic Sciences Program, Auburn, Alabama. Estados Unidos de América 4Universidade Federal do Rio Grande do Sul, Faculdade de Agronomia, Porto Alegre, Rio Grande do Sul. Brasil 5Universidade Estadual de Londrina, Departamento de Zootecnia, Londrina, Parana. Brasil 6Universidade Federal de Mato Grosso do Sul, Faculdade de Medicina Veterinaria e Zootecnia, Campo Grande, Mato Grosso do Sul. Brasil |
| Year: | 2020 |
| Volumen: | 92 |
| Number: | 3 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Aplicado, descriptivo |
| English 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 |
| Disciplines: | Medicina veterinaria y zootecnia |
| Keyword: | Peces, Zootecnia, Cultivo de peces, Cría selectiva, Curvas de crecimiento, Colossoma macropomum |
| Keyword: | Fish, Animal husbandry, Fish culture, Selective breeding, Colossoma macropomum |
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