Estimation of genetic parameters for weight and length gains in tambaqui (Colossoma macropomum).
Braz J Biol
; 83: e277423, 2023.
Article
en En
| MEDLINE
| ID: mdl-38126642
ABSTRACT
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.
Texto completo:
1
Banco de datos:
MEDLINE
Asunto principal:
Characiformes
Límite:
Animals
Idioma:
En
Revista:
Braz J Biol
Asunto de la revista:
BIOLOGIA
Año:
2023
Tipo del documento:
Article
País de afiliación:
Brasil