Barbieri A, Ono R K, Cursino L L, Farah M M, Pires M P, Bertipaglia T S, Pires A V, Cavani L, Carreño L O D, Fonseca R
São Paulo State University "Júlio de Mesquita Filho", Dracena, São Paulo, 17900-000, Brazil.
São Paulo State University "Júlio de Mesquita Filho", Jaboticabal, São Paulo, 14884-900, Brazil.
Poult Sci. 2015 Feb;94(2):169-71. doi: 10.3382/ps/peu062. Epub 2015 Jan 14.
The aim of this study was to estimate genetic parameters for BW in meat quail at different ages. A total of 24,382 weight records from 3,652 quail, born between 2009 and 2011, were evaluated. Weekly BW was measured from hatch until 42 d of age. The genetic parameters were estimated by the restricted maximum likelihood method using a multivariate animal model. Heritability of BW ranged from 0.03 to 0.23. Genetic correlations were mainly high and positive. Selection for BW at 28 d of age yielded good indirect genetic progress in BW at 42 d of age.
本研究的目的是估计肉鹌鹑不同年龄体重的遗传参数。对2009年至2011年间出生的3652只鹌鹑的24382条体重记录进行了评估。从出雏到42日龄每周测量体重。使用多变量动物模型通过限制最大似然法估计遗传参数。体重的遗传力范围为0.03至0.23。遗传相关性主要为高度正相关。在28日龄时选择体重，在42日龄时体重可获得良好的间接遗传进展。
