I don't know very many people that raise shorthorns, but the ones that I do know tend to feed them more like pets than "cows".
I think a whole of high birthweight issues has to do with feeding the cows too much when they are pregnant. I think that is just as big of a factor as genetics, especially combined with cows that are too small to begin with.
We have larger-framed cows than a typical "club calf" operation, but we haven't seen calving problems even when using black bulls known for high birth weights. But our cows run on native pasture year round with supplemental feeding of corn cake during the winter (about 4 lbs per cow a day). They aren't getting anything but grass during the spring and summer when they are in the second and third trimesters.
The only time I've used a shorthorn bull was on a couple of colored crossbred cows with a Shortie called Lights Out who is supposedly horrible on birth weight. With only a sample size of two, the cows have spit them out just fine and haven't been any larger than anything else we use - AI or natural. Maybe we've just been lucky.
I think a whole of high birthweight issues has to do with feeding the cows too much when they are pregnant. I think that is just as big of a factor as genetics, especially combined with cows that are too small to begin with.
We have larger-framed cows than a typical "club calf" operation, but we haven't seen calving problems even when using black bulls known for high birth weights. But our cows run on native pasture year round with supplemental feeding of corn cake during the winter (about 4 lbs per cow a day). They aren't getting anything but grass during the spring and summer when they are in the second and third trimesters.
The only time I've used a shorthorn bull was on a couple of colored crossbred cows with a Shortie called Lights Out who is supposedly horrible on birth weight. With only a sample size of two, the cows have spit them out just fine and haven't been any larger than anything else we use - AI or natural. Maybe we've just been lucky.