Some do, most don't. It always depends on when they're bred that will coincide to when they will calve. Some cows may calve on a New Moon, some may calve when the moon is at it's first or last quarter, or some may calve in between any of these times.
Kinda. If you are referring to their rear ends, yes. But, cows calve out of their vaginas, not their anuses.
This is an impossible number to obtain, because cows get bred and calve out every day in the US. One day there may be 4 million cows that are bred, the next there may be only 200,000 that get bred. And each year that a statistics is taken of how many cows get bred in the US, each year it will be very different from the next.
Generally yes. However, cows do not give birth to calves out of their anus: they calve or give birth out of their vagina or birth canal, just like your mother gave birth to you and your little brother or sister.
calve
If given a choice of where to go, most cows are really good about not doing this. They will find a secluded and clean spot to give birth on, away from the usual feeding and defecating areas other cows would be found. However, if they are confined to a feedlot or in an area where a producer has failed to clean out the area the cow is to calve (which doesn't happen all that often) a cow may have no choice but to do so.
Cows are not plants, they are animals, which are capable of growing in any and all seasons.
Yes.
Yes.
VERY rarely. Cows will only calve once a year.
Kinda. If you are referring to their rear ends, yes. But, cows calve out of their vaginas, not their anuses.
cows sheep dog cat shark pig
This all depends on your herd size, how long your calving season is, and the fertility of your cows and bulls. Some people will calve their cows 365 days a year, whereas others will have all of their cows calve within a time frame of 45 to 60 days, no matter if you have a herd of 50 cows or 1000. The better fertility you have in your cowherd, the shorter your calving season will be.
You should start calving season by March 16.
Yes, though the differences aren't all that significant.
Plenty. "Cow have calf" is not a proper sentence, it's referred to as an "incomplete sentence." To form a proper sentence using these words give you something like this:"A cow will have a calf.""A cow is going to have a calf.""The cow will have a calf.""The cow is going to have a calf."And so on and so forth.
The majority (at least 60 to 70% ) of all cows in North America get bred between summer and fall. The rest of the cows get bred winter or spring, or any other time a bull or a producer wants to catch them to calve.
It takes around two weeks for a calf to mature.