Abstract: A study was conducted to assess the influence of certain genetic and non-genetic factors on the birth weight and to estimate the genetic and phenotypic parameters of birth weight in crossbred calves raised under organized farm conditions. The data on performance record of 713 calves born over a period of 11 years from 1995-2005 at Cattle Breeding Farm, Thumburmuzhy, Kerala was statistically analyzed using the mixed model least square and Maximum likelihood computer program PC-2 of Harvey. The least square mean for birth weight of calves was found to be 27.83±0.48 kg. The male calves (28.50 kg) were found to be heavier than the female calves (27.16 kg).