A cow can lactate for as long as a couple years if she is still being milked, or if her calf hasn't been weaned (or she hasn't weaned her calf). However a cow is most productive during her first 3 to 4 months of lactation after parturition.
As long as the milk is straight from the cow, not the stuff that has been modified by humans (i.e., milk that has undergone pasteurization). Calves are best put with a nurse cow than if they were bottle fed.
Calves suckle from their mother's udder, which is the organ where milk is generated and obtained by the calf or the milk machine (if the cow's a dairy cow).
Dairy cattle are usually able to produce milk for about 7-9 years, this may vary between each cow. Many factors are present to determine how long a cow can produce milk such as, genetic structure, longevity, birth weights of calves born by the cow, and conformation.
Cows produce calves. Calves, like all other baby mammals, rely on their mother's milk for nutrition. Thus, in order to satisfy this need, cows need to produce milk for their calves.
A cow will start to develop milk secretion cells about 6 months into pregnancy, however, she will start to let her milk down into the milk cisterns and into the teats about two days before she is ready to calve.
Usually one calf per cow. Occasionally one cow may have enough milk to feed two calves, but dairy nurse cows can have as many as four calves suckling from her.
Yes. It does not matter what color the cow is, they all produce milk for their calves or for a dairy operation.
for example if you have a cow that produces lots of milk, you would select that cow to breed so its calves would produce a lot of milk when they grow up
A nursing cow is a cow that is producing milk for her or a surrogate calf to feed from. Most producers define a nurse cow as a cow, particularly one of dairy heritage like a Jersey or Holstein, that produces milk to feed those calves that have been orphaned.
Bobby calves are those calves that are meant to be slaughtered when they're only a few days old. These comprise of mostly dairy calves that are not needed or culled from the milk cow herd and are used for veal meat.
Only once a year.
No. Calves don't eat their mom's cud, they drink or suckle milk from their mom.