Abrupt changes in cow diets can be fatal if not handled properly.
This year it seems that some farmers have gotten off to a bad start transitioning cattle from pasture onto winter crops such as fodder beet.
Mark Bryan from VetSouth joins the team to ensure farmers have the correct knowledge at this important time of year.
Mr Bryan shares the known warning signs, his best tips for avoiding high stress, and of course, his thoughts on the move for phased eradication of M bovis.
Watch the full interview with Mark Bryan above.