Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)
An. acad. bras. ciênc
;
89(3,supl): 2515-2523, 2017. tab
Article
in English
| 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.
Full text:
Available
Index:
LILACS (Americas)
Main subject:
Oviposition
/
Reproduction
/
Quantitative Trait, Heritable
/
Cichlids
/
Genitalia, Female
Type of study:
Prognostic study
Limits:
Animals
Language:
English
Journal:
An. acad. bras. ciênc
Journal subject:
Science
Year:
2017
Type:
Article
Affiliation country:
Brazil
Institution/Affiliation country:
Universidade Estadual "Júlio de Mesquita Filho"/BR
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