Mike said:
I need a shaking head side to side emoticon.
If a bull's semen is not adequate for conception, it gets dumped.
If it is, it's frozen.
Mike I used to think the same thing, makes sense. But reality doesn't always make sense. When piles of cash have already been spent on a bull that subsequently proves substandard for live semen quality, it wouldn't matter if it was a two headed goat, they will try and get semen that will pass post thaw morphology. I have seen bulls go to stud and spend over a year there before semen quality is achieved that is salable. I wish I was making this up. There is a big difference between passable semen quality and excellent semen quality. There are instances where bulls are of good semen quality live, but when they freeze, then thaw the semen, quality suffers to the point of being no good. Then there are numerous instances where a bulls semen quality live is just barely passable but they can freeze the semen and get a passable post thaw morphology and sell loads of the semen.
Then there are the cases where a bull doesn't pass a BSE because of an injury on one testicle or missing an epidermal tail missing on one testicle,
but they can still try and freeze semen, and sometimes they successfully freeze semen and sale the heck out of it.
We have bred up to 400 head a year artificially and it's interesting the difference in conception between sires.
If you knew the marginal nature of the fertility of some bulls that are drawn and sold you would be doing more than shaking your head.
That being said, CSS certified semen IMO is your best bet, in the absence of any other supporting info.
But none of this addresses the point of the unexplainable reluctance of studs to share live and post thaw semen quality data.
Mike if you raise a bull and sell it, or buy a bull, do you give out or get a semen evaluation before delivery of the bull? If you do the next question for me is why is that any different when you want to use semen on a bull. Isn't the semen quality info just as relevant?
When that info is not made public one is only left to assume that the info must not be very flattering.