Effects of age, parity, season of calving, and sire on milk yield of Carora cows in Venezuela.

@article{Morales1989EffectsOA,
  title={Effects of age, parity, season of calving, and sire on milk yield of Carora cows in Venezuela.},
  author={Freya Morales and Robert W. Blake and T L Stanton and Minsoo Hahn},
  journal={Journal of dairy science},
  year={1989},
  volume={72 8},
  pages={2161-9}
}
Age-parity-season of calving, mature equivalent factors were developed for the Carora breed of Venezuela from more than 13,000 244-d milk yield records from the Venezuelan milk recording program from 1975 to 1986. Age-parity-season interactions with parity-age were most important for young cows and seasonal effects most important for old cows. Multiplicative factors were verified as useful to adjust milk yields of Carora and Brown Swiss crossbred cows. Repeatabilities for mature equivalent… CONTINUE READING