Probably, a man moms and dads of those specimens was basically homozygous to the gene W. For the several sublines of 20, where men moms and dads were heterozygous (Ww), hens that have pullorum state was basically understood. Possibilities from the population is achieved from the recessive gene w (yellow body).

The fresh new Barred-and-Speckled Leghorn was an egg-installing breed but it’s a little too hefty. The newest real time pounds off 150-day-old pullets are 1.74 hence of mature hens is actually 2.0-2.step one kg. The fresh new live weight of dicks is actually dos.5 kg. Age of readiness is actually 165 months. Yearly manufacturing are 220 eggs averaging 58 grams. Champion levels give 270-290 egg a-year. Egg-shell try ointment or light; choice is occurring for solution along with. Fertility from eggs try 90-95% and hatchability 80%. Endurance rate of younger doing 150 days of decades is 95%; when you look at the adults it is 87%.

The characteristic feature of the new population is an excellent carcass appearance. In this trait they are superior to all known breeds of coloured chickens which carry the dominant gene E. Barred-and-Speckled hens, when mated with cocks of the C₁C₂ male parental form from the cross Hysex white, produce three-line hybrid layers, which are as good as four-way hybrids.

Barred-and-Speckled Leghorns was bred to possess improved egg production as well as combining function throughout the cross that have men adult contours regarding Light Leghorns.