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Just be careful with cementum annuli ages. The technique has real problems correctly aging deer from the South.
 
BSK said:
Just be careful with cementum annuli ages. The technique has real problems correctly aging deer from the South.
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I've heard this before, do you have or know where I could find any slide photos showing the cementum layers on a deer from the southeast? The photos they post on social media always show distinct rings like a tree and I assume they're northern deer.
 
catman529 said:
I've heard this before, do you have or know where I could find any slide photos showing the cementum layers on a deer from the southeast? The photos they post on social media always show distinct rings like a tree and I assume they're northern deer.
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The problem is the common late summer droughts in the South. This causes another ring to form due to the stress of these droughts, erroneously adding another year of age. VERY good studies done in TX found cementum annuli was LESS accurate than toothwear aging.
 
BSK said:
The problem is the common late summer droughts in the South. This causes another ring to form due to the stress of these droughts, erroneously adding another year of age. VERY good studies done in TX found cementum annuli was LESS accurate than toothwear aging.
Click to expand...
That's interesting. How would you say TX compares to middle TN as far as summer drought? Seems it's been a while since we had a bad one here.
 
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catman529 said:
That's interesting. How would you say TX compares to middle TN as far as summer drought? Seems it's been a while since we had a bad one here.
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We have bad ones every few years, but that's enough to add another year of age to a mature buck. Now we don't have it as bad as Georgia, and parts of southeastern AL where summer droughts are far more common, but I'm not willing to accept age determinations based off a flawed measuring stick.

I stick with a combination of toothwear aging, where the errors are well understood (toothwear aging tends to under-age deer the older they are, but almost never over-ages them), and field-judged age. By comparing the two, I feel quite accurate ages (at least accurate enough for management purposes) can be obtained.
 

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