Confused

One of my female mice looks to be pregnant again... but has not been in contact with any males at all. Right now she is only with another mom( which had 11 babys right before she had hers). All babys are acounted for and they are eating normaly, and she is in the noticably round stage, almost a golfball.

When she had her babys she was not like this, and she had them i think two weeks ago. Do mice retain sperm? If i had her in with a male she would already be in a prego bin.Shes getting bigger too. Im confused....

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Originally Posted by Beardedragon

One of my female mice looks to be pregnant again... but has not been in contact with any males at all. Right now she is only with another mom( which had 11 babys right before she had hers). All babys are acounted for and they are eating normaly, and she is in the noticably round stage, almost a golfball.

When she had her babys she was not like this, and she had them i think two weeks ago. Do mice retain sperm? If i had her in with a male she would already be in a prego bin.Shes getting bigger too. Im confused....

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Try pming MarkS... He knows his stuff! Just in case he doesnt see this thread..

Well, thanks Jas, I really don't know THAT much about mice, but I know a little. And I seem to get better at it the longer I keep them. I don't think that mice can retain sperm. However, I do know that they can breed immediately after giving birth and can then delay implantation of the fertilized eggs so that it takes longer for them to give birth to their next litter. This can make it seem like the gestation period is taking longer then the usual 21 days.

Mark

The only males she has been around is the ones she had, and they havent even opened their eyes yet:confused:

Aliens?? :8:

What is her coloring or marking?

Otherwise, you have a male in the hen house...

Remember my post onthe orange and grey mouse? Turns out she is one too. I was wondering why i had some of them in her litter when its a domanant trait and the only other male in there like it was my little guy.

There is no way she has ever been in contact with a male mouse since before or after birth. Could be that she is just one huge mouse... and getting bigger....

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Originally Posted by Beardedragon

Remember my post onthe orange and grey mouse? Turns out she is one too. I was wondering why i had some of them in her litter when its a domanant trait and the only other male in there like it was my little guy.

There is no way she has ever been in contact with a male mouse since before or after birth. Could be that she is just one huge mouse... and getting bigger....

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If you are absolutely positive that she has not been bred again, you may have an ill mouse on your hands. Any quick weight gain that is not linked to her mating at all would make me concerned.

Just something to think about, and that doesnt mean that she isnt pregnant again....

Actually, sounds like she is getting fat if she really is a brindle

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http://www.petrodents.com/index.php/...sics-Mice.html

Brindle is dominant to all but yellow (Ay). A typical brindle will be yellow with black or agouti stripes, resembling a tiger; however, the appearance of brindle mice can be altered by the presence of dilution on other loci. Brindle is also prone to obesity.

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I need me some obese mice!

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Originally Posted by Pork Chops N' Corn Bread

I need me some obese mice!

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LOL, a big ball of fat n' fur? :8:

Littleindiangirl may have a point there. I had a couple of brindles one time and they looked pregnant all the time too, but they were just plain fat.

I had some similar experience, (not good ones, I must add) hope yours is different case.

First, I had one female grew to about a golf ball size (mine are PEW) so I separated her into a nursing box to wait for birth. A couple days later, I found her dead, still with the bigger than golf ball belly. I thought maybe she died from childbirth complication (or whatever its called). So I cut her open, thinking maybe I can save some pinks. But I found NOTHING except blew up intestines inside. This was about 4 months ago.

Second, I found a dead female in the tub a few days ago, stiff, with her round tummy the size of 4/5 of a golf ball. I cut her open again and found the same thing as before: blew up intestines and organs.

Third, I just find today another female with her belly looks pregnant, but she looks sick, so I separated her to see what happens. This is within the same group as the second one above.

Is it a contagious disease going on?

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Originally Posted by amon

I had some similar experience, (not good ones, I must add) hope yours is different case.

First, I had one female grew to about a golf ball size (mine are PEW) so I separated her into a nursing box to wait for birth. A couple days later, I found her dead, still with the bigger than golf ball belly. I thought maybe she died from childbirth complication (or whatever its called). So I cut her open, thinking maybe I can save some pinks. But I found NOTHING except blew up intestines inside. This was about 4 months ago.

Second, I found a dead female in the tub a few days ago, stiff, with her round tummy the size of 4/5 of a golf ball. I cut her open again and found the same thing as before: blew up intestines and organs.



Third, I just find today another female with her belly looks pregnant, but she looks sick, so I separated her to see what happens. This is within the same group as the second one above.

Is it a contagious disease going on?

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Blew up intestines sounds like megacolon or megacecum.
There are links to pictures on this page, the third set shows necropsy's of rats with megacolon. Maybe you see something similar?

Mice are susceptible to megacolon with the lethal spotting gene that is closely related to homozygous piedbalds and dominant spotting. Unfortunately your mice were red eyed albino's so we dont actually know what the genotype is, so we cant really prove or disprove that.

Good luck and keep us updated.

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Originally Posted by littleindiangirl

Blew up intestines sounds like megacolon or megacecum.
There are links to pictures on this page, the third set shows necropsy's of rats with megacolon. Maybe you see something similar?

Mice are susceptible to megacolon with the lethal spotting gene that is closely related to homozygous piedbalds and dominant spotting. Unfortunately your mice were red eyed albino's so we dont actually know what the genotype is, so we cant really prove or disprove that.

Good luck and keep us updated.

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Thanks for the great link. From memory, they do look the same. I'm kind of glad it's not something that is contagious. I guess I'll just feed off all the offspring from my current group and get some new ones to start.

Thanks again.