Can rays have many pregnancys off one mating
- Thread starter calgaryflames
- Start date
There was a post within the last year where a couple of females gave birth a couple of years or so after the last male was with them. Here is the link:
http://www.monsterfishkeepers.com/forums/showthread.php?432572-Pups-born-in-all-female-tank
http://www.monsterfishkeepers.com/forums/showthread.php?432572-Pups-born-in-all-female-tank
Do you have anything to contribute, you've posted 3-4 times now on this thread and nobody has got anything out of you . Do you have any knowledge to share or just smartass remarks
Every body's been contributing nicely lately on this site . Join arowanaclub.ca if your looking for a battle
im trying to find out the info ur the one still posting with no help so dont reply and everything is fine the thread was fine till you started trying to act like the thread boss
I am going to have to say I am certain that at least some of the potamotrygon family of rays have the capability of having multi male contributors as I had a batch recently that had two pups that were for sure from my Xingu sp. male and one pup that looks full Leo which would have been from my male Leo. Another thing I had the unfortunate situation of one of my large female Leo's having what I am guessing still at this point of dying of pregnancy complications so I did somewhat of an autopsy of her and found some very interesting things about her. Right before she died she aborted two pups very near fully developed, both though I believed died a week prior due to fact there was no more movement in the mother as well that's when the mother ray started acting weird and I knew something was up. What I found inside her was pretty interesting as how the whole reproductive system on a female ray looks like, for one a females eggs seem to grow of a line and what i mean by that is they start real small at one end and the eggs get progressively larger towards the other end and detach once they are ready. Now I found two eggs that looked ready and were just loose in the birth chamber. So whether or not the eggs are fertile prior to detaching or after they detach from the line, I do not know but I do think is that the eggs are able to be fertilized at different times and possible by multiple contributors. That's what I found and that's my two cents, hope that this was helpful.
Lyder
Lyder
Excellent .im very curious to know if those detached eggs were fertile.
Also wondering if its possible those eggs can get pregnant at any stage .that would pretty much explain why guys have pups and few weeks later more pop out? It's possible that the females eggs all get fertilized all at different stages this would also explain the quick pregnancys Inbetween birthing . Maybe the ray doesn't even need to be fertilized a second time. I've read a guy kept females in a tank for almost two years with no male and one day one of these females gave birth. They probably don't store sperm but store fertilized eggs.
This maybe why theirs a string of eggs all at different sizes.its like a factory production line inside the female .
Also wondering if its possible those eggs can get pregnant at any stage .that would pretty much explain why guys have pups and few weeks later more pop out? It's possible that the females eggs all get fertilized all at different stages this would also explain the quick pregnancys Inbetween birthing . Maybe the ray doesn't even need to be fertilized a second time. I've read a guy kept females in a tank for almost two years with no male and one day one of these females gave birth. They probably don't store sperm but store fertilized eggs.
This maybe why theirs a string of eggs all at different sizes.its like a factory production line inside the female .
