How soon can I determine the sex of my Jersey Giant Chicks?

[slickchik]

I have 5 chicks and 2 are much smaller than the other 3. I am wondering if the roosters get bigger much faster.

One chick is 7.6 oz and the one I am pretty sure is a cockerel weighs 10.4 oz (he also has a bigger comb too).

At this age of 23 days a difference of nearly 3 ounces is pretty huge.

They were all about the same size when hatched.

 

[MissD'uccle]

I have some jersey giants that I incubate from occassionally and yes, I can tell when the boys are boys at about 4-5 weeks. Their combs and weight are almost always noticeably larger than the pullets.

 

[barred-rocks-rock]

post a pic