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theTegu.com :: View topic - mice breeding but not getting pregnant
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mice breeding but not getting pregnant

 
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WyvernWyrm
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Joined: Aug 17, 2006
Posts: 67
Location: Lorain,Ohio

PostPosted: Sat Oct 14, 2006 12:51 pm    Post subject: mice breeding but not getting pregnant Reply with quote

i have had my mice for roughly a month now and they r breeding like crazy ive witnessed it but nobodys getting pregnant! how can this be? and how can i change it?
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VARNYARD
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Joined: May 16, 2005
Posts: 1164
Location: panamacity florida

PostPosted: Sat Oct 14, 2006 1:09 pm    Post subject: Reply with quote

This would depend on your lighting and temps. Mice need 8-12 hours of lighting and the temps do not need to rise above 80*F. icon_smile.gif
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alex
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Joined: Aug 03, 2005
Posts: 106

PostPosted: Sat Oct 14, 2006 6:23 pm    Post subject: Reply with quote

Generally at room temp and out of draughts mice do fine. They're called house mice for a reason.

What kind of diet are you feeding - a nutritional imbalance/lack would certainly cause early embryonic death. How're you housing them? Are you providing discreet nest sites? Are you actually seeing intormission or is it attempted breeding?

Are you observing anything like gestation? If you're observing gestation (i.e. obviously pregnant mice) and then no babies, someone is killing and eating them (I've had males as well as females do this)

As well, beware mice with yellow coat tones. The "yellow" gene in mice is lethal in the homozygous form, mice whose coat tone is yellow (don't really know how to describe this, look at an undergrad genetics text froma library and they should have photos) are heterozygous for this trait. I doubt this is currently your problem, but you will lose 1/4 of each litter to a genetic defect linked to yellow coat colour
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Kilioa
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Joined: Jul 10, 2006
Posts: 92
Location: North Jerzey

PostPosted: Sun Oct 15, 2006 1:01 am    Post subject: Reply with quote

deffinetly check if their getting eaten . . . deffinetly a feast for a mouse already used to eating its own . . . . i had a black mouse that ate the newborn pinks and even ate the brains of one of the other females
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snakehandler
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Joined: Jan 03, 2008
Posts: 38

PostPosted: Mon Jan 07, 2008 4:18 am    Post subject: Reply with quote

give them extra dog food. Pellets. mice sometimes have a lack of calcium and amino, thats why they eat their young sometimes.
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