Also I am hoping that the leghorn breed will improve the age of maturity of the turken. By adding the turken in I am also hoping it will help with the friendliness and docility.
So my next question...would you use a turken rooster over white leghorns or a white leghorn rooster over turken hens? Or would you use both? What are the pros/cons? I am also fine with getting white birds from the cross and would eventually like to breed for true naked necks and get rid of the bowties (quick all mine have) as well as breed for yellow shanks (which my rooster has). Right now I don't have a leghorn rooster because he got aggressive with kids and had to be turned into a freezer chickenbut I am hoping to replace him down the road.
Does anyone have good reading suggestions for researching more about genetics and such?
Thanks!!
NN Turkens are my primary breed and I cross them with darn near everything. Yes, NNs are typically friendlier and can improve upon the friendliness of the Leghorn, but only if you're starting with breeding stock possessing the temperament qualities you're working for in your crosses. If you breed a flighty or aggressive NN with a Leghorn, you will wind up with flighty or aggressive offspring. Temperament is genetic. I've been breeding for temperament since I started breeding and as docile as my own birds are, there are still variances in their personalities that allow me work around all of them without fear of aggression, be able to handle some with minimal complaint, and actually snuggle with others that run to me seeking hugs and affection. (And yes, I'm talking roosters here.)
As far as improving maturity, what exactly are you looking for? Meat production? Earlier point of lay? Most of my NN girls reach POL around 18-22 weeks and egg size typically increases pretty quickly. My top laying homozygous NN laid an average of 250 X-Lg eggs per year for her first two years and weighed in at over 6 lbs at the end of her pullet year. My extra roosters reach my preferred butchering weight around 16-20 weeks, producing 3-5 lb carcasses. Crossing NNs with Leghorns may help them reach maturity sooner, or may not, but it will probably reduce their weight and size.
As far as NN/Leghorn vs Leghorn/NN....that really doesn't matter too much. It's more important to select breeders that possess the traits you prefer and cross them accordingly.
If you're really interested in learning about poultry genetics, this is probably the best book you'll find:
"Genetics of the Fowl:..." by F.B. Hutt
https://www.amazon.com/Genetics-Fow...14576336&sr=8-1&keywords=genetics+of+the+fowl
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