I am an FFA member, and for our AG class, we need to come up with a science fair project for the state science fair. I did one with chickens last year, and I was third at state with a shot at nationals. I am currently looking for another project that is similar but am running out of ideas. any suggestions?
I suggest you try the "Sexing of Fertilized Eggs by Egg Shape Index"
A morphometric method of sexing white layer eggs
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-635X2013000300006
Excerpt: " The effect of shape index on the hatching chick sex was the most prominent factor for determining the sex of the egg in white layers"
Using a Leghorn hen(I find them to be the most suitable of breeds) and a Fibromelanistic Rooster to aid you in this test(Preferably a homozygous naked neck showgirl/Silkie), separate the eggs according to sex(by egg shape index) and hatch both and see what is the accuracy of the test(Pullets will have Black Skin, males will have clear skin).
Objective of the Project? to confirm that it's possible to apply morphometric methods to help sexing chick embryos before they develop.
1. Reducing energy requirement to hatch pullets(for every pullet needed a male chick is also incubated). Reducing environmental impact.
2. Reducing the amount of male chicks that need to be culled right after hatch(the closer the method gets to 100% the less male chicks are sacrificed)
3. Using sex linkage to aid in sexing chicks(Sex linked Dermal enhancer boosted by Fibromelanotic).
I would devide male chicks in one incubator and female chicks in a seperate incubator(side by side), time the time of hatch to the science fair day(21 days) and bring the incubators to the fair.