lithuanian farmer
Well-known member
An example of a calf out of bluex cow. Sired by double muscled breed bull - Parthenaise. Liveweight/ carcass weight - 66%. Born very small and plain. Looked nothing too exceptional as a calf as well.



Double muscling has quite a few different gene varriants, which are common for individual breeds. Not all varriants increase trouble at calving. Also noticed that the same varriant can work differently in different breeds. For example, belgian blue and parthenaise can have the same nt821 varriation, but calving easy in not the same. Alot depends what kind of double muscle genes are in a bull and in a cow. You can safely work with double muscling, but you need some general knowledge about it and know the animals you work with.
Belgian blues can be easy calving as well and just like any breed there are some lines safe at calving, average and some cow killers.



Double muscling has quite a few different gene varriants, which are common for individual breeds. Not all varriants increase trouble at calving. Also noticed that the same varriant can work differently in different breeds. For example, belgian blue and parthenaise can have the same nt821 varriation, but calving easy in not the same. Alot depends what kind of double muscle genes are in a bull and in a cow. You can safely work with double muscling, but you need some general knowledge about it and know the animals you work with.
Belgian blues can be easy calving as well and just like any breed there are some lines safe at calving, average and some cow killers.






