• Medicine
  • Published 2010

The impact of genetic selection for increased milk yield on the welfare of dairy cows.

@inproceedings{Oltenacu2010TheIO,
  title={The impact of genetic selection for increased milk yield on the welfare of dairy cows.},
  author={Pascal A. Oltenacu and Donald M. Broom},
  year={2010}
}
Milk yield per cow has more than doubled in the previous 40 years and many cows now produce more than 20,000 kg of milk per lactation. The increase in production should be viewed with concern because: i) the increase in milk yield has been accompanied by declining fertility, increasing leg and metabolic problems and declining longevity; ii) there are unfavourable genetic correlations between milk yield and fertility, mastitis and other production diseases, indicating that deterioration in… CONTINUE READING

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