It depends on what breed of beef cattle you are asking about.
Sixty to 70 pounds is the average birth weight for a calf, but it varies based on size, breed, gender of the calf, health of the mother and the length of the gestation period.
81000000000000000 kg at birth
Bison cows primarily give birth to one calf a year.
A Pied calf may weigh around 100 lbs at birth.
A young bison or buffalo is called a calf
80-100# is a reasonable range for an Ayrshire calf.
A calf.
There could very well be. Charolais are notorious for siring large calves, and as such this could prove to be a really big problem for a bison momma. Bison are naturally adapted to give birth to small calves and to give birth quickly. If the bison cow cannot give birth to such a large calf, then she will be in serious trouble.
40 pound
A reasonable range is 80-100# at birth.
Around 50 to 60 lbs.
calf
Calf. The same terms that apply to cattle generally apply to bison.
They are referred to as 'calves'. Or singular 'calf's. I hope this helped.