Right after birth, or as soon as the calf is out of the birth canal.
Breed her and see if she settles long enough to birth a calf.
That depends on the breed and birthweight of the calf. Every calf is different, and have different lengths. On average, though, a calf may be about three to four feet long from the tip of the nose to the tip of the tail.
As long as the cow thinks it is necessary to hide that calf. Usually a cow will hide her calf for a week or two after birth until the calf is strong enough to be up, running and playing with the other calves.
It takes 12 months for a dolphin to give birth to another dolphin (calf).
Never. Chimpanzees can not give birth to young cows (a calf).
A Pied calf may weigh around 100 lbs at birth.
The cow gave birth to a small male calf. We called the calf Sunday.
The offspring of a cow is referred to as a calf. A heifer calf is a female calf, a bull calf is an intact male calf, and a steer calf is a castrated male calf (castrated after birth).
They gave birth to a calf and the farmer let them and their calves into the so-called calf pasture.
A young female calf from birth until she has had a calf of her own is called a heifer
Then that calf (and the cow) is in a lot of trouble, and you need to assist that cow right away. The calf needs to be pushed back in in order to get the other leg into the birth canal. The head is probably turned back as well (if the calf is coming front-first), and also needs to be straightened out before you pull out the calf. Of course, pushing a calf back into the uterus is easier said than done!
80-100# is a reasonable range for an Ayrshire calf.