Pictured above are the expected progesterone results based on the bitches cycle. In a perfect world, testing on an idexx machine, we would expect the numbers pictured above.
Basically, we have a couple of different recommendations based on what kind of breeding you are doing.
These are all calculated with day 0 being the first bloody show.
Natural breeding: breed between 8-14 ng/l which should be around day 10-12.
A.I Breeding: 12-18 ng/ml which should be day 11-13.
Surgical: 22 ng/ml or day 14.
Keep in mind these numbers are only for an idexx and these ranges vary based on what instrument you are testing on. For example, the Finecare, V200, and Mini Vidas all have different range charts that correspond to certain days.
Pictured left is the reading chart for the finecare, as you can see it reads a lot higher than idexx with the estimated ovulation being 6-10 on the finecare vs 5 on the idexx.
There is also a lot of variation between dogs, this equation will fit most dogs, but there are a large proportion of dogs that will differ in their cycles.
The video above goes through this in greater detail.
There is a lot that goes into correctly timing a breeding. Using progesterone testing to find the best day to breed is the best way to ensure timely breedings.
When testing it's also important to use the appropriate chart.
'Till next time!
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