Thank you! Will the meds effect the breeding outcome? How many straws do you use for one breeding on average?
Thank you! Will the meds effect the breeding outcome? How many straws do you use for one breeding on average?
Yes, to further what Evo said, you need a certain number of active sperm cells to continuously wiggle up against the egg to break through the outer boundary.
One sperm cannot (by itself) break through the outer layer of the egg.
It takes a high number (I forget how many) to constantly wear-down the outer layer of the egg, before one of them finally breaks through.
High sperm quality = lots of healthy sperm per ml
Poor sperm quality = not a lot of healthy sperm per ml
Therefore, if you have high quality semen, only 1 straw is needed to inseminate,
whereas with poor quality semen you need a lot more straws to bring the same amount of healthy sperm cells into the arena.
Jack
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The number of live healthy semen reqiured as a base minimum is 100 million and in most cases the repro vet would like to use more but depending on the straw size or vial size for pellets the vet will only be able to use upto a certain amount
of semen straws or vials.
The best chances are to make sure AI using frozen semen has the best outcome possible ,is to take your male
to have his semen frozen between 2 and 4 years old and if he is in good health and does not have herditary health
issues that may impact on his semen quality, then he should have a live semen motility of 90% or maybe a little more
or less with low primary and secondary defects , that would be ideal , then the post thaw motility should be 60% more
or less it all depends on the semens abilty to withstand the freezing and thawing process .
The lower the fresh live motility count is along with pirmary and secondary defects and deformities in the semen
the less chance you have of the semen being of good live motility post thaw ,and when you get down past 40%
or less post thaw that also has the primary and secondary defects ,then that 40% it is more than likely 20%
and then its more unlikely to be successfull, but it is of course possible , but the minimum post thaw live
motility should be 50% or higher with low primary and secondary defects or deformities ,but a good and
expierienced repro vet will be able to tell you whether they think you dogs semen is viable for freezing
and depending on the post thaw results , which they normally wait a week to ten days to do the thawing
of one straw or vial ,then they can tell you what the chances are that the semen can produce a litter
or not based on the post thaw.
The misconception is always about the number of straws needed or that can actually be used , any good repro vet will tell you that their is only a certain amount of semen or straws that you can use, and to think that if you had say 10 straws and the semen quality was low that you could use all 10 to somehow up the chances of a succesfull breeding is not correct.