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How many days do you guys count before you question AI buck or backup buck?
AI or Backup buck
- Thread starter Cassie Martinez
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I have been told they can go 204 and on occasin DNA to A/I.......But @ 200 we feel were toast!
I might be wrong but I think that the estrus cycle for whitetail is for 28 days.
If this is correct and we consider that an average fawning date would be 196 days, so then half of the estrus cycle (14 days) would be at 210 days after AI, so at 210 you should have a 50% chance of being from AI and a 50% chance of being from the backup.
My reasoning is that up to 205 days after AI it should be pretty sure its from the Ai buck. From 205 to 210 it could still be from the AI but your chances are getting too close to the borderline. You should definitively confirm through DNA.
These are simple math calculations made by someone who still has a lot to learn from these animals so take it with a lot of reserve.
Ed
If this is correct and we consider that an average fawning date would be 196 days, so then half of the estrus cycle (14 days) would be at 210 days after AI, so at 210 you should have a 50% chance of being from AI and a 50% chance of being from the backup.
My reasoning is that up to 205 days after AI it should be pretty sure its from the Ai buck. From 205 to 210 it could still be from the AI but your chances are getting too close to the borderline. You should definitively confirm through DNA.
These are simple math calculations made by someone who still has a lot to learn from these animals so take it with a lot of reserve.
Ed
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This has probably been discussed before, but how much does it cost to DNA a deer?
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DNA to be sure, I think it is money well spent so you know for sure what you have. My first fawn's were born on day 185 this year.
Josh and Tood are right on. After 15 years or charting I have not had any go over 205 days. But the good ones I DNA verify, as Josh says 185 the earliest I have had and 205 late. That is putting back up in at 15 days after, some does have earlier cycle time I have noticed 20+ days more so than the 28, just my 2 cents.
