Archives Animal Breeding
Archives Animal Breeding
Archives Animal Breeding
Articles | Volume 59, issue 1
Articles | Volume 59, issue 1
Arch. Anim. Breed., 59, 9–17, 2016
https://doi.org/10.5194/aab-59-9-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Arch. Anim. Breed., 59, 9–17, 2016
https://doi.org/10.5194/aab-59-9-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 59, issue 1

Original study 15 Jan 2016

Original study | 15 Jan 2016

Sex influence on genetic expressions of early growth in Afshari lambs

F. Ghafouri-Kesbi and D. R. Notter

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Subject: Quantitative genetics and estimation of breeding value | Animal: Sheep
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Cited articles

Al-Bial, A., Singh, J., Singh, D. P., and Niwas, R.: Environmental and genetic factors on growth traits of Black Bangal sheep in Yemen, The Bioscan., 7, 185–188, 2012.
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Sexual dimorphism for growth-related traits in Afshari lambs was studied. Greater estimates of residual and maternal variances in male lambs together with interactions between sex of lamb with effects of birth year and birth type suggested greater environmental sensitivity of male lambs compared to female lambs. However, cross-sex genetic correlations were positively high, suggesting no need or opportunity for sex-specific selection to create or modify sexual-size dimorphism in sheep.
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