Generally it's called pregnancy-checking or preg-checking for short. Preg-checking includes doing a rectal palpation, using blood testing, using ultra-sound, or thumping/bumping.
A female horse that can't get pregnant is called a "barren mare."
Valbazin cannot be used on pregnant cows that are in their first 45 days of pregnancy, nor can it be used on breeding dairy females. If you have pregnant cows that are at least 45 days pregnant, yes, you can use it on your pregnant cows.
Cows used for breeding only, or cows that are already pregnant.
No, because cows don't have "breasts." They have UDDERS.
Only if the cow that they're mounting is in heat.
Twelve cows can be called a flink, a dozen head or a herd of cows.
Cows never get pregnett the get pregnant. They are pregnant for 9 months
Females are called cows and the males are bulls.
Yes, if they're not pregnant.
9 months.
Yes, if (and only if!!) the milk from these cows are not being used for human consumption.
Preg-checking is a method done to verify a cow's pregnancy status, or if a cow is bred or not. This is done primarily by rectal palpation, though other "non-invasive" methods of preg-checking are being practiced, such as blood testing, ultra-sound, timing of heats, or bumping. Farmers also check pregnant cows when they are close to calving. This is so that the producer estimates what cows are closest to calving and when they might drop a calf. It will also determine if they are close to calving or not.