Originally Posted by Pwyse
Originally Posted by abolt300
Originally Posted by Pwyse
Matt, with a mid January rut, when would a doe need to be harvested to get this information?

Around the beginning of March?


Not in south bama. I helped Matt's old boss collect a bunch of fetal data and blood samples in Marengo, Greene, Clarke, Dallas and Wilcox over a 5 yr period, roughly 20 yrs ago. Lot of that went into the Alabama "Rut Map" that we show on here every year. We always started our data collection in those counties around May. I always assumed that the main reason was that with the sex ratios so far out of whack (this was before the free for all doe slaughter), there does being bred on their second and third cycles in some areas, which put them being bred all the way into late Feb and March. We wanted to make sure that if we took them out of the herd, to get the fetal data, that the fetus was bigger than a butterbean. Beginning of March is too early IMO for the south end of the state. We shot all the way into June in some of those years.


I’m bad at math, but in the example on the scale, that fetus was roughly 7 weeks old right? If bucks are locked up with does middle of January, then the first couple of weeks of march would put it around 7 weeks right? Like I said I’m bad at math. I might have missed a month somewhere lol


You would definitely catch the early and peak time breeders sampling right after the season’s end but depending on the situation on your property;, doe numbers, buck numbers, and buck age structure or lack thereof, you might miss sampling a significant amount of later breeding happening in mid-late Feb and beyond. It’ll always be a bell curve. The length of that bell curve is what changes. We were trying, at the time, to capture as much data as possible and that all the does we were shooting had had the full opportunity to conceive. Like I said, this was before the wholesale doe slaughter and we sampled plenty that were bred in early, mid and late Feb, March, and even a few in April. If I had to guess, at the time, 65-80% were bred in that peak window from early to late Jan, depending on the county/property location, but the other 20-35% were bred outside of that very short peak window, before and after, with prob 2-5% being bred early and the majority of the outliers were being bred on the backside of the curve in their second or third cycles, well after peak. The shorter the tail on the curve, the better. There simply were not enough bucks to service all the does in their first cycle. Deer numbers were way higher in those counties at the time. Back when we were doing this, DMAP was the only option if you needed to kill large numbers of does.

Last edited by abolt300; 02/12/25 07:49 AM.