Age of sexual maturity is step 170 weeks

The new real time lbs out of 8-week-old chickens was 0.8 kg; adult hens consider 2.2-dos.5 and you can cocks step three.5-cuatro.5 kg. Egg-shell is brown. Fertility of eggs is 95% and you will hatchability 80-85%. Death of younger is actually 5-7% and of grownups 5%. The average design try 180-two hundred egg annually; eggs weight are 58-60 g. Producing winners are 270-290 egg.

Crossbred progeny of Yerevan hens and White Leghorn dicks make 230 eggs a year weigh 60 g. The fresh new live weight off adult levels is actually step one.8-2.0 kg. Specialized egg traces out-of Yerevan hens can be used as ladies moms and dads during the crosses having male lines away from Light Leghorns.

Authoritative twin-goal (meat and eggs) contours from Yerevan chickens was a valuable genetic resource towards the creation of the man-made chicken-and-eggs lines of broiler crosses.

YURLOV (Yurlovskaya)

This breed was made in the Main Black-Environment region of one’s Russian Federation inside Orlov, Kursk and you will Voronezh regions, by means of antique selection. Meters.F. Ivanov is of the advice that Yurlov reproduce came from crosses regarding local hens which have assaulting dicks and Brahma people.

The breed was shaped because of the expanded selection of dicks having an excellent strong and you can long-drawn-away crow. It had been considered that alternatives on the charm and duration of crowing carry out help develop an effective structure with strong muscles and you may greater nipple.

During the 1941-45 the bulk of the newest Yurlov people are forgotten. From inside the 1948, brand new Every-Relationship Chicken Reproduction Institute delivered 27 specimens out of Goryaninovka village from inside the Kursk area. From the 1951 this new gene preservation society had risen up to 200 head. The common show within head is actually 124 egg a-year. Later it absolutely was you can easily to raise this new show up to 154 egg regarding 71 grams per year.

Yurlov chickens are definitely the ancestors of a few new house-bred breeds: Pervomai, Adler Silver and Zagorsk Salmon chickens continue to have in their genotype 1/2 to 3/8 of Yurlov inheritance.

Yurlov chickens have the really-manifested characters of chicken-types of Western and you can games breeds. Their body is large, strong and enough time. The head try quick, with broad frontal bone, high orbital arches and you may red-colored ear canal-lobes. He’s got a single, flower or walnut brush. The legs try a lot of time and you can good, purple otherwise black in the along with. The newest plumage is rather fluffy as well as individuals colour; dark silver, salmon and yellow are the commonest. Girls feather very slow.

The fresh real time weight out of 8-week-dated birds is actually 0.9-1.dos kilogram; mature hens weigh 2.6-step 3.0 and you will cocks step 3.5-4.0 kilogram. Yearly design is 160-180 egg of sixty-80 g. Egg shell is actually red-brown. Virility out-of eggs try 91% and hatchability 80%. Success rate of the more youthful is 90% and of 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 wild birds got a premier development and stability. Instance, Rhode Isle Red-colored dicks had ladies mothers and that placed not less than just 180 eggs per year and you may Yurlov dicks originated of a good hen hence applied 185 eggs.

In 1953 how many Fish birds with step 3/8 out-of Yurlov blood is actually 227. They certainly were bred in a close inhabitants in which loved ones choice is always blend high installing speed, stability, eggs pounds and good fleshing. The fresh new real time pounds of the ninety-day-dated Zagorsk Salmon cockerels is step one.eight kilogram; ninety.6% out-of carcasses had been ranked given that earliest stages.