What Beef-on-Dairy Calves Bring With Them From the Dairy
I am currently feeding beef-on-dairy calves on a large commercial feedlot in Ireland, and the pens in front of me demonstrate a simple fact: the dairy’s breeding decision, not the buyer’s paperwork, determines what eventually shows up at the bunk.
The Holstein side contributes frame, organ mass and a later-maturing growth pattern. The beef sire should add muscling, carcass yield and earlier maturity, but how much it adds depends on the individual bull. A sire may have been chosen primarily for calving ease, short gestation, semen price or availability — not for what he will contribute to a carcass 15 months later.
A mixed-source group may include calves sired by Angus, Hereford, Limousin or even Charolais bulls. Even within Angus, sires can differ sharply in growth, muscling and maturity. Some calves inherit balanced terminal genetics. Others inherit little beyond an easy birth and a black hide; underneath, they remain strongly dairy-type.
By Ioannis Mavromichalis
September 04, 2026 06:00 AM
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