Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)
An. acad. bras. ciênc
;
89(3,supl): 2515-2523, 2017. tab
Artículo
en Inglés
| LILACS
| ID: biblio-886806
ABSTRACT
ABSTRACT Genetic parameters for reproductive traits in female Nile tilapia were estimated in this study using Bayesian inference method. The data set presented information from 451 Nile tilapia females that were evaluated at two different places in Maringá - Paraná - Brazil (hapas of 1 and 10 m³) and at one location in Alfenas - Minas Gerais - Brazil. A spawning examination was conducted once a week from October 2012 to March 2013 for a total of 23 weeks of evaluation. Single-trait analyses for spawning success, multiple spawning, spawning frequency, and volume of eggs/female were performed by using the software MTGSAM Threshold. The heritability estimates were 0.14, 0.16, 0.53, and 0.08 for spawning success, multiple spawning, spawning frequency and volume of eggs/female, respectively, indicating it is possible to achieve a substantial genetic gain using these reproductive traits as selection criteria.
Texto completo:
Disponible
Índice:
LILACS (Américas)
Asunto principal:
Oviposición
/
Reproducción
/
Carácter Cuantitativo Heredable
/
Cíclidos
/
Genitales Femeninos
Tipo de estudio:
Estudio pronóstico
Límite:
Animales
Idioma:
Inglés
Revista:
An. acad. bras. ciênc
Asunto de la revista:
Ciencia
Año:
2017
Tipo del documento:
Artículo
País de afiliación:
Brasil
Institución/País de afiliación:
Universidade Estadual "Júlio de Mesquita Filho"/BR
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