However , using tags improperly or using tags not designed for sheep may cause discomfort , largely due to excess weight of tags for other animals .
When performed at an early age , ear tagging seems to cause little or no discomfort to lambs .
Using tags improperly or using tags not designed for sheep may cause discomfort , largely due to excess weight of tags for other animals .
When performed at an early age , ear tagging seems to cause little or no discomfort to lambs .