Help sexing baby guinea pigs.

[a7736100]

I really cannot tell the difference.

Please point out the difference and what to look for between picture 3 and 4

http://www.cavyspirit.com/sexing.htm

Yesterday afternoon my big sow had 4 babies. Sorry, not camera. I'be happy if I can at least seperate the sexes by week 3 so I wouldn't need 4 different cages.

 

[3mina]

On picture 3 the 'y' is more like a 'v' but it's definitely a girl.

 

[ladysown]

girls have a y boys have slit.

 

[akane]

Also if you run your finger across the bone just above the genitals you can often feel the retracted penis on a male or smooth bone on a female. Guinea pigs are pretty easy to sex by looking after awhile though. See enough Y's and penis dots and you sex them day 1 in seconds. I never get guinea pigs wrong but I still mess up a gerbil here or there and rabbits I can sex fairly accurately as newborns before they have fuzz but after they get fuzz I have to wait until 8weeks and still make mistakes then.