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I'm glad these crosses are laying well, as I think your original Exchequer stock was flawed - my chicks hatched from that same hatchery at the same time also had issues.I'm excited as well....only 17 days until hatch![]()
One thing I learned in going to this next step.....the "first generation" Exchequer Leghorns/NH hens are laying HUGE eggs. Now granted they are 2 year olds so they are bigger than they probably were last year but the size is impressive which bodes well to getting good sized chicks out of them. (And maybe the fact I had to wait until the hens were 2 year olds in order to get to this step will wind up going in our favor in terms of the size of the next generation.) The hens themselves are larger and bigger bodied than their mothers. The roosters look decent but are not huge. Still, I'm hopeful I'll see a size increase in this generation and the large eggs really help. The eggs are a very light brown and the hens appear to be laying consistently. I got three eggs again yesterday out of three hens. I switched out roosters after collecting enough to fill the incubator and I am now collecting eggs again to start as soon as this batch is done. I wound up setting more eggs than my incubator technically holds so instead of turning on the auto turner, I turn manually, since I have eggs sitting on top of eggs. My theory is that surely not ever egg will be fertile and develop so at the 7-day candling, I will remove enough eggs to be able to put the extras in the tray and turn the turner on.
I'll keep you posted though there won't really be any news now until hatch day![]()
Historically I found the Exchequers to be the MOST reliable and productive layers, although their eggs were fairly small.
You probably won't find a big size increase in the chicks. They will (most likely) end up half way in between Leghorn and NHR in size. I've personally found that it takes the "bump" up to 3/4 "Big Chicken" to increase size.
There is a fascinating dog breeding study out there somewhere, that demonstrates this phenomenon. Since cutting off puppy's tails (docking) is kind of a sad thing to do, a breeder decided to try and introduce the "bob tail gene" into Boxers. He did this by crossing CORGIS. Of course the first generation was a mess of mutts, but what was crazy, is when they took a pure bred show quality boxer and crossed it with the mutts, the resulting puppies looked like Boxers again! The outside breed practically disappeared again! But they were able to find a pup with the bob tail, and did one more cross, and eventually the "natural bobtail" dogs were allowed back in the registry.
It was a fascinating scientific study. But the thing that was so interesting to me, is how the 3/4 mark made such a tremendous difference.
I've found in my chicken breeding that 50/50 small, light, gamey chicken crossed to big, stout, heavy chicken makes something in-between, but it's the NEXT cross that makes the difference. If a chicken is 75% "itty bitty Aloha" the size stays small. I have to breed it up to 75% big chicken bloodline to see real size improvement. Which has been VERY hard to do while retaining not just a "few" teeny spots but to do while trying to carry the super extreme mottling seen in the Aloha.
I have brought in big chicken from the start. After the Exchequer and Game, I brought in Sussex, hatchery NHR, Orpington mix, Buff Rock, Swedish Flower, more Sussex, Buff Sussex, another hatchery NHR, another hatchery Sussex, now Turken. And yet, the Alohas tend to revert back to the size of Exchequers if you don't keep adding more "outside" large breeds.
Going to keep it up - the part Light Sussex chicks in particular are VERY large. The baby rooster from that group of chicks hatched in mid November, he's already bigger than the pure hatchery Turken, who really is a good sized hen. And that baby boy is going to continue to grow for at least two months! I can't wait until he's ready to breed, hopefully in mid May!
Going to keep that up, and I'm even considering ordering a few new "super sized" Light Sussex chicks from the Sussex breeder in Colorado. Though breeding that Light Sussex color out and adding spots sure is a challenge! LOL!