As many beef farmers have moved away from bull-beef production, many are now choosing to start castrating males – calves/weanlings – and opt for a steer finishing system instead.

Currently the number of young bulls slaughtered in 2021 is reaching 37,691 head, which in comparison to 2020, is behind by 14,424 bulls.

As the spring advances, we will see autumn-born bull weanlings gaining more strength and age – therefore the decision to castrate them should be made sooner rather than later.

If an animal goes over the six-month age bracket, by law, a local anaesthetic must be administered by a vet.

The timing for castration on farms can vary depending on farmers’ opinions. In research carried out at Teagasc Grange, it indicates that bulls will grow faster than the castrated males – with the liveweight advantage being largely lost once the bulls are castrated.

There are three methods for castration:

  • Using a burdizzo;
  • Banding;
  • Testes removal via surgery.

A burdizzo is used to crush the spermatic cord and surrounding vessels, which has the same result as banding.

Banding (usually used when castrating younger calves) cuts the blood supply to the testes and scrotum, which eventually dries up and falls off.

Farmers have a third option which is to employ a vet to surgically remove the testes.

For advice and tips, Teagasc has recommended the following when it comes to castrating males this spring.

Tips for carrying out castration:

  • Ensure the animals are properly restrained;
  • Ensure both testicles have descended;
  • Ensure all the equipment is clean to reduce the risk of infection;
  • Ensure the equipment is in good working condition;
  • Calves should be vaccinated for tetanus at least one month before castration and the booster should be given on the day of castration;
  • Only use rings up to eight days-of-age without an anaesthetic;
  • Use a non-steroidal anti-inflammatory at castration for quicker recovery;
  • Check calves four weeks later to ensure that the testes are not growing.