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20 cocks. 4 hens. Bad luck in the sex lottery or...?

Posted by pippimac New Zealand (My Page) on
Wed, Jan 6, 10 at 18:08

My mother has quite a few chickens and she seems to hatch a very high proportion of roosters.
I'd read that keeping the same rooster for too long results in an increase in males, so we got some 'fresh blood'.
Well I just processed 20 young cockerels from the new rooster, so that theory's out the window!
I'd love some advice or just a reality check- I'd be kind of surprised (and overwhelmed with joy) if it isn't the luck thing-.
Temperature, feed, age, anything...

Follow-Up Postings:

RE: 20 cocks. 4 hens. Bad luck in the sex lottery or...?

Several things are involved here,
1 accuracey of sexing
2 age of rooster
3 age of hens
4 temerature of incubation, just like alligators, the hatching books temp they advise is programmed to be in the middle, I cant rememer wether males are higher or lower temp

RE: 20 cocks. 4 hens. Bad luck in the sex lottery or...?

The sex of a bird is determined by their mother, not father as with humans. Monotreme mammals also exhibit this form of sex determination.

RE: 20 cocks. 4 hens. Bad luck in the sex lottery or...?

my experience is that I get more roosters with spring hatches than i do with summer hatches. So i don't let them brood until at least may or june. Here in canada, that means i wait until outside temp are running in the 70's most of the time. One problem with this is that the hens may go off their tendency to brood if i keep taking eggs away. So this year i may let them brood early. I need to increase my numbers (Chanteclers, heritage breed).

I'm glad to see josh mention the temperature thing, as most people here seemed to think i was nuts to say that temperature influenced my hatch ratio.

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