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.: Home > Animal Science Papers and Reports > 2008 > Volume 26 Number 1 > Anna Wolc1**, El؟bieta Barczak1, Stanis³aw Wê؟yk2, Jakub Badowski3, Halina Bieliٌska3, Tomasz Szwaczkowski1

Genetic evaluation of production and reproduction traits in two selected lines of geese under multitrait animal model

Anna Wolc1**, El؟bieta Barczak1, Stanis³aw Wê؟yk2, Jakub Badowski3, Halina Bieliٌska3, Tomasz Szwaczkowski1
1 Department of Genetics and Animal Breeding, Agricultural University of Poznaٌ, Wo³yٌska 33, 60-637 Poznaٌ, Poland 2 National Research Institute of Animal Production, Krakowska 1, 32-083 Balice, Poland 3 National Research-Breeding Goose Centre, Experimental Station Ko³uda Wielka of the National Research Institute of Animal Production, 88-160 Janikowo, Poland
Abstract :

Heritability of and genetic correlations among production and reproduction traits as well as
genetic trends over eight years of selection were estimated in W11 (maternal) and W33 (paternal)
lines of geese. Considered was body weight on week 8 (BW8) and week 11 (BW11), number of
eggs produced (EP), egg weight (EW), percentage of fertility (PFE), and percentage of hatchability
from eggs fertilized (PHC). Multitrait animal model was applied. Moderate to high heritability
estimates were obtained for BW8, BW11 and EP in both lines while lower for PFE and PHC. Highest genetic correlations were estimated between PFE and PHC and between the body weight traits. No clear genetic trends for any trait were identified. Generally, unfavourable relationships between productive and reproductive traits have been confirmed.

Keywords :
heritability / genetic correlations / genetic trends / geese / multitrait animal model

Date Deposited : 06 Aug 2011 11:01

Last Modified : 06 Aug 2011 11:01

Official URL: http://www.ighz.edu.pl/

Volume 26, Number 1, - 2008

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