Incubating a big egg

[bakerjw]

I'm not talking about a big egg like an emu, ostrich, or even turkey. It's just that my girls occasionally lay huge eggs. By huge I mean that they bottom out my Ideal egg scale. Much larger than jumbo. Originally they were mostly double yolks but lately they are just single yolks.

Now I am getting ready to incubate some eggs starting tomorrow. One dozen are some White Rocks that I bought. Another 2 dozen are fertilized eggs from my free rangers which means that they will be regular white rocks as well as WR/silver sebright mixes.

To fill out the incubator I have saved back some of my possibly fertilized eggs from my girls. Up until an incident a week or so ago they had not known a rooster. Five of the 8 got loose and once the boys (WR roos) found them they were jumping the girls as fast as they could catch them. So there is a possibility that 62.5% of their eggs are fertile. I have set aside the largest of the eggs to incubate and wondered if the larger egg resulted in a more successful hatch. I don't think that the chick itself will be bigger but it will at least have some more room and more nourishment during development.

Some day I may have to do a scientific study of pre-incubation egg weight to chick weight at hatch.

Any input?
Thanks

 

[Towns End]

I think most would say that the pefect egg to incubate would be an "average" size egg for the type chicken. I usually cull (eat) the really big and really small eggs. I incubate the average eggs.