It's really not the age so much as the size of the steer. Depending on what you're feeding, it could be from 16 months to 24. My grass fed calves usually got to a couple of years, just to get the size I want. Sorry I don't have anymore info than that.
given the oppurtunity, a cow will always take the wrong gate...Baxter Black www.newdaydexters.com
Irish Dexter Cattle for sale..............
We always slaughter our Jersey steers between 18-24 months of age. Going by weight not age.
We only butchered one before that time. He was an 8 month steer who was still nursing his dam. He was as big as her, so in the freezer he went.
This is a couple weeks before we processed the steer...he was more than half the weight of his Mum, a 3/4 Guernsey Angus X. He was 750# and is very tender and tasty. He was 1/2 Jersey, and had that temperament. He was 10.5 mo. old and had been gaining average 3# per day over the course of his life.