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Discussion Starter · #1 ·
..or so it seems.

Five weeks ago I paired up an ivory satin Abyssinian with my sepia satin Abyssinian buck, with the aim of producing more ivories to work with. This would be her second litter, she'd been resting about two months since weaning her first litter. Two weeks and one day later the ivory doe had just started developing a little round potbelly, so three days after that I put her in her own cage to get settled in and kindle. That was two and half weeks ago. Since then she has been slowly getting bigger and bigger until she was the biggest mouse I had ever seen! Every day for two weeks I've been saying to myself "it's got to be tonight, surely?" but no.

Finally, last night, I had to clean out her substrate around her as she was just too big to lift safely. I looked down at her in her cage and said, firmly but kindly, that if she didn't have her babies in the next 24 hours I would have to cull her - I was afraid something had gone seriously wrong and she was starting to have trouble moving about.

This evening I have a litter of healthy, normal looking, squiggly pinkies with big bellies full of milk and a normal looking mum!

This ever happened to anyone else? I've heard of delayed implantation, but delayed birthing is new one for me. She looked ready to kindle at three weeks - but evidently she just decided she'd wait another two!

Sarah xxx
 

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This has happened to me twice... the first time with a PEW doe that literally looked like she was going to pop for a week and a half, at one point she couldn't move. I ended up doing the same as you... giving her til tomorrow before I culled her, the next day I went in and there were the babies! lol
The second time was with a doe from my lilac lines TWO FRIGGING WEEKS, to the point that i couldn't touch her, i was so scared to move her, again, made the decision to cull, and again, the next day... babies!! hehe

And its not like these babies were exceptionally large litters, or exceptionally large themselves. They didn't look more developed than regular pregnancy pinkies. Its almost like they go into stasis! hehe

Or maybe they just carried them differently, so they showed very early in the pregnancy?

W xx
 

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Swines, aren't they?! But congratulations =)

Quite a few people I know swear they have had mice hold on for 5 and even 6 weeks. The more I get to know other breeders, the more I hear about it, yet many still hold firm it isn't possible. It's not happened to me personally (yet lol) x
 

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At least you got babies. I have a doe, Lacey, who I was very excited about getting a litter from, but it came apparent after a few months that she was just getting fat...the first tri I've ever seen that did that. And I have a satin fawn doe who looked just plain fat until the day before she delivered, a common ocurance with some of my fawn lines. 'Weirdos' is a good word for it.
 

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I have one like that now, she's seemed pregnant for several weeks, but hasn't given me any babies. Maybe I should go threaten to cull her? :) I'll let you guys know if it works!
 

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Threatening is def the way to go it works, i've had a few do this to me too. Not by as long as 2 weeks tho a week for sure to the point i thought they would explode!!

If i ever get it happen i just clean them out and put there box on a different shelve next day babies, i know stress isn't good for them but sometimes it helps them a long a little.
 

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Discussion Starter · #9 ·
She had 14 - 12 bucks and only 2 does! And one of the does was too runty to keep :roll:

Oh well, hopefully I'll have some ivory bucks with good rosettes.

Sarah xxx
 

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Sarah, what type of lighting do you use in your mouse room? The lighting greatly affects the genders of your litters.

Regular bulbs give litters that are 70% male and 30% female.
Florescent bulbs give litters that are 30% male and 70% female.
Natural sunlight gives litters that are 50/50.
 

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RainyDayMice....

you're giving away all my secrets... sheesh!!! LOL :lol:

Sarah, its true. I've been testing it on my mice, and it very much works.
 

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You wouldn't think that something like light source would affect gender... Just goes to prove that mice are strange lit'le critters! How about my mice? They are kept under a incandecent light, next to a large window with natural light, and florescent lights on the other side of the incandescent bulbs... :lol: :lol: :lol:
 

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Discussion Starter · #13 ·
Regular bulbs give litters that are 70% male and 30% female.
Florescent bulbs give litters that are 30% male and 70% female.
Natural sunlight gives litters that are 50/50.
Ohmigod, that would explain everything!!! I've been really struggling with my doves; I've been getting on average two does per litter for the last 8 months or so!! I've had to put on my website that I can't sell any mice for a while as my numbers are really low.

They are in my front room with an incandescent lightbulb and I keep the blind down in the summer so that the room doesn't get direct sunlight. If my problem is solved by switching to a fluorescent lightbulb I'll be so d*mn happy!! :D

Sarah xxx
 

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I'd totally believe this given that when we bred fish, light and temperature greatly increased the amount of girls in the siblings. A temp difference of just .5 % higher would get your roughly 30% more girls, 1. % would give you 60% more girls. It is also known in chickens that if an inci is a little higher or lower, you'll get more girls or boys.
 

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Hmmm... interesting!!

Since my mice are in a shed, the only light they get is natural... and I have never noticed a marked difference between males and females in my litters, obviously its different in every litter, but on average I seem to get about the same amounts of boys and girls! hehe

W xx
 

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This must mean that different types of light have an effect on the buck mice right? Effecting what sperm they produce?

W xx
 

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Hmmm very interesting!! My mice have been in natural light pretty much the whole time I've had them though I use incandescent at night time for myself before bed. I should be having a litter within a week so I guess we'll see what happens!
 

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This works in reptiles, higher temps for girls in the incubator.
Mine are in naturally light i get about 45% bucks 55% does. I am never over run with boys what so ever, and there is no such thing as being over run with girlys.
 
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