Reptile & Amphibian Forums

Dave, I've been breeding BRB's for 20 years! I currently have 2 VERY gravid females! In the past, I never really monitored the timing and just "let it happen"! I was figuring some time in June as a birth time, but one of the girls just started going into a shed! From your experience, what is the typical time after POS??????

With BRB's I set my "due date" at POS plus 117 days (at 82 degrees). Of course reality will be plus or minus a week (even two) but that will get you in the right ballpark. This year for me is running later than either of the last two years. My peak of mating activity was about two - three weeks later. So, I'm expecting my typical crunch birthing period to be a little later as well.

A POS today puts the due date at 09/19. Could this be an interim shed? What other dates do you have? (Observed coupling and sheds)

For the last three years I've been keeping fairly detailed records on observed coupling, sheds, due dates and actual dates. Really cool to see them all plotted out together and see the similarities and differences between all the litters.
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Thanks,

Dave Colling

www.rainbows-r-us-reptiles.com

0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)

LOL, to many snakes to list, last count (02/01/2010):
42.61 BRB
27.40 BCI
And those are only the breeders

lots.lots.lots feeder mice and rats

Got to be an interim shed! I don't think there's any way she makes it to mid-sept. I'll keep you posted!

When was the last time you noticed any breeding activity between them?
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Thanks,

Dave Colling

www.rainbows-r-us-reptiles.com

0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)

LOL, to many snakes to list, last count (02/01/2010):
42.61 BRB
27.40 BCI
And those are only the breeders

lots.lots.lots feeder mice and rats

Don't remember! It's been awhile!

Most of my BRB litters are delivered around 5.5 months after last observed mating. This method of timing works if you are nocturnal and are checking on them a couple times a night during mating season. Otherwise, you miss seeing many of the breedings. They typically shed two or three times while they are gravid. I have had a few that shed either one or four times while gravid.

>>Most of my BRB litters are delivered around 5.5 months after last observed mating. This method of timing works if you are nocturnal and are checking on them a couple times a night during mating season. Otherwise, you miss seeing many of the breedings. They typically shed two or three times while they are gravid. I have had a few that shed either one or four times while gravid.

Exactly why it can be hard to determine a due date as the breeding season unfolds. Much easier to look at all the recorded details after she's clearly gravid and figure out which shed was the POS, once you have determined which shed is POS, then a due date is easy, 117 days later. If you are lazy and don't want to count, simply go forward 4 months and back up five days.

Yes, the 4 month forward, back up 5 days will be vary depending on the length of days within the months but is close enough. Typically 117 or 118 days and can be as few as 115 days if POS in Feb non leap year.

Examples:

04/30 POS, plus 4 months = 08/30, -5 days = due date of 08/25.
05/02 POS, plus 4 months = 09/02, -5 days = due date of 08/28.

(note the pos date moved trwo days while the due date moved three, this is due to number of months with 31 days within the individual gestations)-
-----
Thanks,

Dave Colling

www.rainbows-r-us-reptiles.com

0.1 Wife (WC and still very fiesty)
0.2 kids (CBB, a big part of our selective breeding program)

LOL, to many snakes to list, last count (02/01/2010):
42.61 BRB
27.40 BCI
And those are only the breeders

lots.lots.lots feeder mice and rats