This calf was born yesterday and, sadly, survived only a few minutes, leaving his poor mother exhausted. Having sat her up, Wayne and Zoe are giving her a dose of sugars, calcium and mineral salts to give her a boost after her ordeal. Big calves tend to cause a lot of calving trouble and are also often stillborn. We’ve had a few this year, which I think is partly due to the wonderful condition of the cows.
We do actively try to keep the size of calves manageable in other ways. When we are selecting bulls for our herd, we look for those who have a record of easy calvings (though not too easy in case we end up breeding cows with hopelessly tiny pelvises) and those of medium stature. We don’t want to breed giants and internationally, Holsteins have been getting bigger and bigger.
As well as the calving ease, our desire for medium-sized cows is about fitness. Most of the semen originates from lines bred in America and Europe, where cows live in barns most of the time and walk very little while, here in Australia, our cows live out in the paddocks all year round.
I think they have better lives as a result but the downside (if you can call it that) is that they must be fit enough to walk from the paddock to the dairy and back twice a day. Massive bodies are hard on feet and legs.