Sexing young mice

[NetBSD]

i posted this on another board but would like to see what some of you think...


heres 5 mice i picked up today, long story short NO ONE around here knows how to sex a mouse so heres some pics.









i think the forth looks like the only female, i dunno the age on these guys so heres a pic of them in the 10 gellon with the brown female i have left over from the last bunch

[Hornets23]

1,2, and 5 i believe are males. I think 4 is a female and 3 looks to be a male but its kind of hard to tell. I'm not positive but just glancing thats what i would say.

[Hornets23]

Oops...now i see that you already said that. Well in any case..I would agree with you.

[ssssnakeluvr]

I'd say you're right....3rd one is a little hard to tell tho.

[Steven@HumboldtHerps]

I breed mice and rats, and the 3rd looks like a male as well. It's funny at times. Often the testes look like inverted shriveled sacs. I believe it may be a temperature thing; ask any guy who's been in a cold river! Obvious testes may also be a sign of dominance when you have an array of males housed together, but I'm not sure there.

[Loren]

I agree, just the 4th looks female to me, the 3rd pic is blurry, but I think male. Its all about the distance between the two bare spots. If you get that figured out, it doesnt matter if the sac is sticking out or not. Best is to look at many, many mice, until it becomes obvious at a glance.
I've noticed most male mice suck in the sac when picked up, and let them out when they are a little more relaxed.

[Steven@HumboldtHerps]

Yeah, if some huge monster picked me up by the tail (if I had one), I might respond in a similar fashion! LOL!

[Garter_Gertie]

Girls are a dash-dot; boys are dot-dot. At least in cats. I'd assume the same for mice...

The pics, some, aren't clear... but (no pun meant...) I think in order you have male, female, female, male, female.

My guess anyway.

[Charlet_2007]

4 male 1 female.. i bet on it 1000%.. lol

[NetBSD]

ok thanks guys, then i got this sexing thing down, i just wanted to run it by some people that actually know it and look at what im lookign at to see if i understand it correctly