Period of sexual readiness was step one70 months
The fresh real time lbs out-of 8-week-old chickens is actually 0.8 kg; adult hens consider 2.dos-2.5 and you can dicks step 3.5-4.5 kg. Egg shell is actually brownish. Fertility out-of egg are 95% and you will hatchability 80-85%. Death of your own younger is actually 5-7% and of adults 5%. An average production is actually 180-200 eggs a year; egg weight try 58-sixty grams. The production of winners try 270-290 eggs.
Crossbred progeny out-of Yerevan hens and you can White Leghorn dicks make 230 egg annually weigh 60 grams. Brand new live weight away from adult levels try step one.8-dos.0 kilogram. Official egg contours out-of Yerevan hens are used given that lady mothers from inside the crosses with men traces from Light Leghorns.
Certified dual-goal (meat and eggs) traces of Yerevan chickens try a valuable hereditary funding for the creation of the artificial chicken-and-egg lines away from broiler crosses.
YURLOV (Yurlovskaya)
That it breed was made regarding Central Black-Planet zone of the Russian Federation inside the Orlov, Kursk and you will Voronezh regions, by means of traditional selection. Yards.F. Ivanov try of the thoughts your Yurlov reproduce originated in crosses away from local hens with fighting dicks and Brahma men.
The latest reproduce are shaped from the longer number of dicks with a good and much time-drawn-out crow. It had been considered that selection into the charm and you can duration of crowing manage help establish a powerful structure with sturdy looks and greater breast.
While in the 1941-forty five the bulk of the fresh new Yurlov inhabitants was lost. In the 1948, the fresh new Most of the-Commitment Chicken Breeding Institute put 27 specimens out-of Goryaninovka village in the Kursk part. Because of the 1951 brand new gene maintenance people got risen to 2 hundred direct. An average performance inside group try 124 egg a-year. Later on it was you’ll to increase the brand new efficiency as much as 154 eggs of 71 g a-year.
Yurlov chickens could be the ancestors of a few brand new home-bred types: Pervomai, Adler Gold and you will Zagorsk Fish birds continue to have within genotype 1/2 to 3/8 out of Yurlov inheritance.
Yurlov birds feel the well-manifested emails regarding beef-type Asian and you may online game breeds. Their body was wider, strong and you may enough time. Your head is short, which have greater frontal bones, highest orbital arches and you will reddish ear-lobes. He’s got an individual, flower or walnut brush. The fresh new ft was enough time and solid, red-colored otherwise black into the the color. The fresh new plumage is quite fluffy as well as individuals colour; ebony silver, fish and you can yellow would be the commonest. Chicks feather very more sluggish.
The alive pounds from 8-week-old chickens is 0.9-1.dos kg; mature hens weigh dos.6-step three.0 and cocks step 3.5-cuatro.0 kg. Annual manufacturing try 160-180 egg of sixty-80 g. Egg shell is actually pink-brown. Fertility from egg are 91% and hatchability 80%. Emergency rates of younger are ninety% as well as adults 88-93%.
ZAGORSK Fish (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 leading creation and you will stability. Such as, Rhode Island Yellow cocks had lady moms and dads and this put believe it or not than 180 egg per year and you will Yurlov cocks descended away from good hen hence put 185 eggs.
Within the 1953 the number of Salmon chickens which have 3/8 regarding Yurlov blood try 227. They were bred inside the a sealed people in which family options was familiar with merge highest laying price, stability, eggs lbs and you will a fleshing. The alive weight of one’s 90-day-dated Zagorsk Salmon cockerels was 1.7 kg; ninety.6% off carcasses was in fact ranked once the basic amounts.