anytime it wants
There can be over a billion sperm in one 0.25 ml straw of bull semen.
They do not. This is a myth that has been dispelled many, many times by scientific fact and yet people still listen to the lies that media spills about what they think is in energy drinks. There are a couple of chemicals - primarily Taurine - that is found in both energy drinks and bull semen. But so is WATER, which isn't particularly newsworthy. All Taurine commercially used is synthetic. It comes out of a factory, not a bull.
As many as what a breeder needs. Bulls don't produce semen that need to be collected like with cows that produce milk. A bull can fill thousands of straws per year if need be, depending on the demand for straws from that particular bull.
Since one bull, on average, gives 7 ml of semen in an ejaculation, 14 x 0.5 ml straws or 28 x 0.25 ml straws can come from one ejaculation from a bull.
One unless the bull being used has poor quality semen.
7
that isn't a answer that we can give to you
It all depends on how many cows a bull has to settle in one day and how much libido the bull has. It should be safe to say that a bull may mate with one or more cows at least 10 to 20 times a day. If a bull has a lot of cows to breed, there's no time for eating, but lots of time for courting.
how many times is give mentioned int he bible
15 TIMES, and thats more then Ferrari, Red Bull and Williams
the pit-bull originally came from turkey but was bread many times to take the typical pit-bull terrier form
pit bulls can get pregnant 2-3 times in a year