The brand new alive weight from 8-week-old birds are 0.8 kilogram; adult hens weigh 2.dos-2.5 and you can dicks 3.5-cuatro.5 kg. Egg shell is actually brown. Virility off eggs was 95% https://datingmentor.org/political-dating/ and you may hatchability 80-85%. Death of your own more youthful is actually 5-7% and of people 5%. The typical manufacturing try 180-two hundred eggs a year; eggs lbs are 58-60 g. Producing winners was 270-290 egg.
Crossbred progeny out of Yerevan hens and you may White Leghorn cocks write 230 egg a year weigh 60 grams. The newest live lbs out of mature layers is actually step one.8-dos.0 kg. Specialized egg contours of Yerevan hens can be used as girls moms and dads during the crosses with male contours out-of Light Leghorns.
Certified dual-purpose (animal meat and you may egg) lines regarding Yerevan chickens is a valuable hereditary financing toward creation of the fresh man-made animal meat-and-eggs outlines regarding broiler crosses.
YURLOV (Yurlovskaya)
It reproduce was developed regarding Central Black-Planet area of your own Russian Federation for the Orlov, Kursk and you will Voronezh countries, in the form of antique options. Meters.F. Ivanov are of view the Yurlov breed originated in crosses regarding regional hens which have fighting cocks and Brahma men.
The reproduce try formed by the expanded set of dicks that have a solid and you may much time-drawn-away crow. It absolutely was considered that possibilities on the beauty and you may length of crowing do assist to create a robust structure with sturdy system and you will greater breast.
Throughout 1941-forty-five the majority of the Yurlov society are shed. From inside the 1948, the Every-Partnership Chicken Reproduction Institute lead twenty seven specimens away from Goryaninovka village during the Kursk area. By the 1951 the newest gene conservation population got increased to 200 direct. The typical abilities within this flock was 124 egg per year. After it had been you’ll be able to to improve brand new results as much as 154 egg regarding 71 g per year.
Yurlov chickens is the ancestors of some new house-bred types: Pervomai, Adler Silver and you will Zagorsk Fish chickens have within their genotype 1/2 to 3/8 regarding Yurlov genetics.
Yurlov chickens feel the well-manifested characters regarding animal meat-sorts of Asian and video game types. Themselves try broad, strong and you may long. The head is actually small, which have wider front bone, large orbital arches and you can red-colored ear-lobes. He has one, rose or walnut brush. The fresh new foot was long and you will good, yellow or black colored inside the the color. The fresh new plumage is rather fluffy and of some tints; ebony silver, fish and yellow are the commonest. Girls feather most slowly.
New alive pounds off 8-week-dated birds was 0.9-step one.2 kilogram; adult hens weighing 2.6-step 3.0 and you will dicks step three.5-cuatro.0 kilogram. Yearly manufacturing are 160-180 egg from 60-80 g. Egg-shell was red-brown. Fertility out of eggs is 91% and you may hatchability 80%. Emergency price of young are 90% as well as grownups 88-93%.
ZAGORSK Salmon (Zagorskaya lososevaya)
This breed group is used for meat and egg production. It was created during 1950-59 by breeders from the Ail-Union Poultry Breeding Research Institute in the Moscow region starting with a four-way cross. In 1950 they made reciprocal crosses of Russian Whites with the New Hampshire, Rhode Island Red and Yurlov breeds. The F1 crosses were backcrossed to Rhode Island Red and Yurlov cocks.
The foundation birds got a high production and you will stability. Such as for instance, Rhode Island Red cocks had lady parents which laid believe it or not than 180 eggs per year and you may Yurlov cocks originated out-of an effective hen and this laid 185 egg.
When you look at the 1953 just how many Salmon chickens which have step three/8 off Yurlov blood try 227. They were bred inside a sealed populace in which nearest and dearest options is actually familiar with merge higher installing price, stability, eggs weight and you may good fleshing. The new alive lbs of your own 90-day-old Zagorsk Salmon cockerels are step one.eight kilogram; ninety.6% from carcasses have been rated because basic grade.