Poor conception rates in replacement heifers are often due to heifers being underweight by the start of the breeding season.

The task of achieving this target pre-breeding weight begins once a replacement heifer is born, until mating start date (MSD) when she reaches approximately 13 to 15 months-of-age.

As the future replacement heifers approach the stage of weaning, we must ensure that an adequate weaning plan is in place – to minimise any stress placed on the calves – as they make the switch from whole milk or milk replacer to solid feed.

Poor management of calves pre and post-weaning can result in poor potential growth rates, health issues and failure to reach heifer rearing weight targets.

Furthermore, once the calves are weaned and at grass, it is important that a consistent worming programme is put in place.