Genetic parameter of birth and weaning weights for Friesian calves by using an animal model

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Atil H. , KHATTAB A., BADAWY L.

ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING, vol.48, no.3, pp.261-269, 2005 (Journal Indexed in SCI) identifier identifier

  • Publication Type: Article / Article
  • Volume: 48 Issue: 3
  • Publication Date: 2005
  • Doi Number: 10.5194/aab-48-261-2005
  • Title of Journal : ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING
  • Page Numbers: pp.261-269

Abstract

Birth and weaning weights of 556 Friesian calves by 41 sires out of 3 18 different dams over a 11 years period were obtained from a herd of Friesian in Sakha Experimental Farm, Ministry of Agriculture. Egypt were used. The records were analyzed by Multiple Trait Likelihood Method (MTDFREML) by using a repeatability animal model (BOLDMAN et al., 1995). Convergence was attained after 699 iterations, The Fixed effects included in die model were season and year of calving, parity and sex and the random effects were direct and maternal genetic, permanent maternal environmental and error.