Welfare implications of identification of cattle by ear tags.

@article{Johnston1996WelfareIO,
  title={Welfare implications of identification of cattle by ear tags.},
  author={Andrew McDonald Johnston and Dafydd Sion Edwards},
  journal={The Veterinary record},
  year={1996},
  volume={138 25},
  pages={
          612-4
        }
}
The damage caused by ear tags used for identification was studied by examining the ears of normal beef cattle and cull cows after slaughter, and by comparing the effects of metal and polyurethane ear tags in calves which had been double-tagged in the same ear. Metal tags were associated with more damage to the ears than polyurethane tags, the difference being most marked in the young calves, in which slight changes were found in 36.6 per cent and severe changes in 9.8 per cent of ears. There… CONTINUE READING

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