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, cilt.48, ss.261-269, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 48 Konu: 3
  • Basım Tarihi: 2005
  • Doi Numarası: 10.5194/aab-48-261-2005
  • Dergi Adı: ARCHIV FUR TIERZUCHT-ARCHIVES OF ANIMAL BREEDING
  • Sayfa Sayıları: ss.261-269

Özet

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.