The new real time pounds off 8-week-dated https://datingmentor.org/pl/flirthookup-recenzja/ chickens is actually 0.8 kg; adult hens weigh dos.dos-2.5 and you can cocks 3.5-4.5 kilogram. Egg shell is brown. Virility regarding eggs are 95% and you will hatchability 80-85%. Mortality of younger are 5-7% as well as adults 5%. The typical manufacturing try 180-two hundred egg annually; eggs weight are 58-60 g. The manufacture of winners is 270-290 egg.
Crossbred progeny away from Yerevan hens and you can Light Leghorn cocks create 230 eggs per year weigh 60 g. The brand new real time lbs out-of mature levels is actually step one.8-dos.0 kg. Certified egg outlines out of Yerevan hens are utilized once the female moms and dads during the crosses that have men traces of Light Leghorns.
Official dual-objective (chicken and egg) contours off Yerevan birds was a very important hereditary money towards production of this new artificial beef-and-eggs lines out of broiler crosses.
YURLOV (Yurlovskaya)
So it reproduce was developed regarding Central Black-Earth area of one’s Russian Federation within the Orlov, Kursk and you will Voronezh countries, in the form of conventional solutions. Meters.F. Ivanov try of your own viewpoint that the Yurlov breed originated in crosses of regional hens with fighting dicks and you can Brahma people.
The brand new reproduce try molded from the lengthened number of cocks that have good good and you may a lot of time-drawn-aside crow. It actually was believed that options to your charm and you may period of crowing manage assist to write a powerful structure having sturdy human body and greater nipple.
During the 1941-forty five the bulk of the fresh new Yurlov population is destroyed. During the 1948, the newest All-Connection Chicken Reproduction Institute introduced twenty seven specimens out-of Goryaninovka community in the Kursk part. By the 1951 new gene conservation populace got increased to 200 lead. The common results within this flock is actually 124 egg annually. Afterwards it actually was you’ll to boost the newest performance to 154 eggs of 71 grams annually.
Yurlov chickens are definitely the forefathers of some brand new home-bred breeds: Pervomai, Adler Gold and you can Zagorsk Fish chickens have within their genotype 1/2-3/8 from Yurlov genetics.
Yurlov birds feel the really-manifested emails of chicken-type of Western and you may online game breeds. Their body are greater, deep and you may a lot of time. Your mind is small, with wide front limbs, high orbital arches and you may red ear-lobes. He has a single, flower or walnut comb. The feet try much time and you may solid, red-colored or black inside the color. The latest plumage is pretty fluffy as well as certain colours; ebony silver, fish and you will red-colored certainly are the commonest. Girls feather very reduced.
This new real time lbs regarding 8-week-dated chickens is actually 0.9-step one.dos kg; adult hens weighing dos.6-step 3.0 and you will cocks step three.5-cuatro.0 kg. Yearly creation is actually 160-180 eggs of 60-80 g. Egg-shell is actually red-brown. Fertility from egg was 91% and you can hatchability 80%. Endurance speed of the more youthful was 90% and of grownups 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 origin birds had a high production and stability. Including, Rhode Area Reddish dicks had female parents and this laid believe it or not than 180 egg per year and you may Yurlov dicks descended of a great hen hence applied 185 eggs.
During the 1953 exactly how many Fish chickens with step 3/8 of Yurlov blood is 227. These were bred into the a sealed inhabitants in which loved ones options was always mix highest putting speed, viability, eggs weight and you can a great fleshing. New real time lbs of your ninety-day-dated Zagorsk Fish cockerels was step 1.eight kilogram; ninety.6% of carcasses have been ranked given that earliest degrees.