British Poultry Science, ( ISI ), Volume (55), No (3), Year (2014-6) , Pages (298-304)

Title : ( Genetic parameters for feed efficiency and body weight traits in Japanese quail )

Authors: N. NASIRI FOOMANI, , Saeed Zerehdaran , M. AHANI AZARI , E. LOTFI ,

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1. The objectives of the present study were to estimate heritability and genetic correlations for feed efficiency and body weight in Japanese quail. 2. Recorded tratis during different weeks of the growing period were body weight (BW) from hatch to 35 d, feed intake (FI), feed conversion ratio (FCR) and residual feed intake (RFI) from hatch to 28 d of age. 3. Genetic parameters were estimated by restricted maximum likelihood method using ASREML software. The results showed that heritability estimates for BW ranged from 0.11 to 0.22 and maternal permanent environmental effect was the highest at hatch (0.45). FCR, RFI and FI showed moderate heritabilities ranging from 0.13 to 0.40. 5. Genetic correlations of BW28 with FI0-28 (0.88) and RFI0-28 (0.1) and genetic correlation of FI0-28 with FCR0-28 (0.13) and RFI0-28 (0.52) were positive. A negative genetic correlation was found between BW28 and FCR0-28 (-0.49). There was a high positive genetic correlation (0.67) between RFI0-28 and FCR0-28. 6. In conclusion, selection for increased BW and reduced FI in a selection index could be recommended to improve feed efficiency traits including FCR and RFI in Japanese quail.

Keywords

, genetic paratmeters, feed efficiency, Japaness
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@article{paperid:1041896,
author = {N. NASIRI FOOMANI, and Zerehdaran, Saeed and M. AHANI AZARI and E. LOTFI},
title = {Genetic parameters for feed efficiency and body weight traits in Japanese quail},
journal = {British Poultry Science},
year = {2014},
volume = {55},
number = {3},
month = {June},
issn = {0007-1668},
pages = {298--304},
numpages = {6},
keywords = {genetic paratmeters; feed efficiency; Japaness quail},
}

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%0 Journal Article
%T Genetic parameters for feed efficiency and body weight traits in Japanese quail
%A N. NASIRI FOOMANI,
%A Zerehdaran, Saeed
%A M. AHANI AZARI
%A E. LOTFI
%J British Poultry Science
%@ 0007-1668
%D 2014

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