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Genetic parameter estimates for birth and weaning weights in Raeini goats

Author

Listed:
  • M. Gholizadeh

    (Department of Animal Science, Sari University of Agriculture and Natural Resources, Sari, Iran
    young Researchers Club, Islamic Azad University, Islamshahr Branch, Teheran, Iran)

  • G. Rahimi Mianji

    (Department of Animal Science, Sari University of Agriculture and Natural Resources, Sari, Iran)

  • M. Hashemi

    (Department of Animal Science, Aburaihan College of Agricultural Science, Tehran University, Tehran, Iran)

  • H. Hafezian

    (Department of Animal Science, Sari University of Agriculture and Natural Resources, Sari, Iran)

Abstract

The aim of the present study was to estimate variance components and genetic parameters for birth and weaning weights in Raeini goats. The data were collected from the Breeding Centre of Raeini (BCR) cashmere goats in Kerman province of Iran from 1986 to 2008. Random effects included direct and maternal additive genetic effects, maternal permanent environmental effects with direct-maternal genetic covariance and random residual effects. Variance and covariance components and genetic parameters were estimated using the DFREML program by fitting six single-trait animal models. Depending on the model, hd2 varied from 0.057 to 0.323 for birth weight and from 0.043 to 0.229 for weaning weight. Estimates of m2 ranged from 0.016 to 0.289 for birth weight and from 0.01 to 0.184 for weaning weight. The maternal permanent environmental effect was significant for both traits and ignoring maternal effects in the model caused the overestimation of direct heritability.

Suggested Citation

  • M. Gholizadeh & G. Rahimi Mianji & M. Hashemi & H. Hafezian, 2010. "Genetic parameter estimates for birth and weaning weights in Raeini goats," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 55(1), pages 30-36.
    • Handle: RePEc:caa:jnlcjs:v:55:y:2010:i:1:id:1703-cjas
    DOI: 10.17221/1703-CJAS
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    References listed on IDEAS

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    1. J. Přibyl & J. Přibylová & H. Krejčová & N. Mielenz, 2008. "Comparison of different traits to evaluate the growth of bulls," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(7), pages 273-283.
    2. J. Přibyl & H. Krejčová & J. Přibylova & I. Misztal & S. Tsuruta & N. Mielenz, 2008. "Models for evaluation of growth of performance tested bulls," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(2), pages 45-54.
    3. H. Krejčová & J. Přibyl & J. Přibylová & M. Štípková & N. Mielenz, 2008. "Genetic evaluation of daily gains of dual-purpose bulls using a random regression model," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 53(6), pages 227-237.
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