Genetic parameters in female reproductive traits of Nile tilapia (Oreochromis niloticus)

被引：6

作者：

Yoshida, Grazyella M. ^{[1
]}

De Oliveira, Carlos A. L. ^{[2
]}

Kunita, Natali M. ^{[2
]}

Rizzato, Gabriel S. ^{[2
]}

Ribeiro, Ricardo P.

机构：

[1] Univ Estadual Julio de Mesquita Filho, Dept Zootecnia, UNESP, Programa Posgrad Genet & Melhoramento Anim,FCAV, Via Acesso Prof Paulo Donato Castellane S-N, BR-14884900 Jaboticabal, SP, Brazil

[2] Dept Zootecnia, Programa Posgrad Zootecnia, Av Colombo 5790, BR-87020900 Maringa, Parana, Brazil

来源：

ANAIS DA ACADEMIA BRASILEIRA DE CIENCIAS | 2017年 / 89卷 / 03期

关键词：

Bayesian Inference; heritability; Oreochromis niloticus; repeatability; spawning; BODY-WEIGHT; BAYESIAN-ANALYSIS; SEED PRODUCTION; CULTURE PERIOD; RAINBOW-TROUT; LATE MATURITY; GIFT STRAIN; PERFORMANCE; GROWTH; HERITABILITY;

D O I：

10.1590/0001-3765201720160063

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

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 Maringa - Parana - Brazil (hapas of 1 and 10 m 3) 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.

引用

页码：2515 / 2523

页数：9

共 37 条

[1] Nile tilapia (Oreochromis niloticus) seed production in irrigated rice-fields in Northwest Bangladesh-an approach appropriate for poorer farmers? [J].