Data/hora: 16/06/2024 17:46:46

Biblioteca(s): | Embrapa Pesca e Aquicultura.
Data corrente: | 17/01/2024
Data da última atualização: | 17/01/2024
Autoria: | SILVA, G. F.; SHIOTSUKI, L.; DIAS, L. T.; TEIXEIRA, R. A.
Afiliação: | G. F. SILVA, UNIVERSIDADE FEDERAL DO PARANÁ; LUCIANA SHIOTSUKI, CNPASA; L. T. DIAS, UNIVERSIDADE FEDERAL DO PARANÁ; R. A. TEIXEIRA, UNIVERSIDADE FEDERAL DO PARANÁ.
Título: | Estimation of genetic parameters for weight and length gains in tambaqui (Colossoma macropomum).
Ano de publicação: | 2023
Fonte/Imprenta: | Brazilian Journal of Biology, v. 83, e277423, 2023.
ISSN: | 1678-4375
DOI: | https://doi.org/ 10.1590/1519-6984.277423
Idioma: | Inglês
Conteúdo: | The goal of this study was to determine the genetic parameters for growth traits in tambaqui (Colossoma macropomum) fish of similar age and weight. The data set included monthly measurements of body weight and length from120 fish for a year (1,440 measurements). The study found that weight gain had a heritability estimate of 0.01, while length gain had a heritability estimate of 0.27. There was a high positive correlation (0.84) between weight and length gains. The genetic variance and heritability of body weight decreased with age. This study suggests that breeding programs should select for body weight and weight gain to promote genetic gain in tambaqui. Selecting younger animals can also help reduce costs while still achieving genetic gains.
Thesagro: | Colossoma Macropomum; Crescimento; Genética Animal; Peixe; Seleção Genética; Tambaqui.
Thesaurus Nal: | Fish; Genetic correlation; Heritability.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
URL: | http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1160900/1/bjb-2023.pdf
Registro original: | Embrapa Pesca e Aquicultura (CNPASA)
Exemplares: | CNPASA - (1313-1) - UPC - AP - DD - 2023 -  - 2023 - DIS