This new alive weight off 8-week-old birds try 0.8 kg; adult hens weigh dos.dos-dos.5 and you may cocks step 3.5-4.5 kilogram. Egg-shell was brownish. Fertility away from egg are 95% and hatchability 80-85%. Mortality of the younger is actually 5-7% and of grownups 5%. The average production was 180-200 eggs a year; eggs weight is 58-sixty g. Producing winners was 270-290 egg.

Crossbred progeny regarding Yerevan hens and you may White Leghorn dicks generate 230 eggs a-year weigh 60 g. This new real time pounds of adult layers are 1.8-dos.0 kilogram. Specialized egg traces regarding Yerevan hens can be used once the girls mothers for the crosses that have men traces regarding Light Leghorns.

Authoritative dual-mission (meat and eggs) outlines away from Yerevan birds is actually a very important genetic funding on production of the fresh new synthetic animal meat-and-eggs contours out of broiler crosses.

YURLOV (Yurlovskaya)

That it breed was made regarding the Main Black colored-Earth region of your Russian Federation within the Orlov, Kursk and Voronezh nations, in the form of old-fashioned options. Meters.F. Ivanov are of opinion that Yurlov breed originated crosses from regional hens which have assaulting cocks and you may Brahma men.

The latest breed are shaped by prolonged selection of cocks with an excellent solid and you can a lot of time-drawn-aside crow. It was considered that options on charm and you can period of crowing would make it possible to establish a powerful constitution which have sturdy human body and greater nipple.

While in the 1941-forty-five the majority of brand new Yurlov population is missing. In the 1948, the brand new The-Commitment Chicken Reproduction Institute delivered twenty-seven specimens out of Goryaninovka village within the Kursk part. Of the 1951 the gene preservation inhabitants got risen to 2 hundred direct. The average abilities in this head are 124 egg a-year. Afterwards it had been you are able to to raise this new show as much as 154 egg out of 71 grams a-year.

Yurlov chickens may be the forefathers of some new home-bred types: Pervomai, Adler Gold and you may Zagorsk Fish chickens still have within their genotype 1/two to three/8 off Yurlov genetics.

Yurlov chickens have the well-manifested emails out-of beef-sorts of Far eastern and online game types. Themselves try wider, strong and you will much time. The head are small, having broad frontal bone, higher orbital arches and you will red ear-lobes. He’s got one, rose or walnut brush. The fresh foot are enough time and you can solid, purple otherwise black colored from inside the along with. The newest plumage is pretty fluffy as well as some colours; black gold, fish and you will purple would be the commonest. Girls feather really slowly.

The latest alive pounds off 8-week-old chickens are 0.9-1.dos kilogram; adult hens weighing 2.6-step 3.0 and cocks step 3.5-cuatro.0 kilogram. Yearly design are 160-180 egg out-of 60-80 g. Egg shell are green-brown. Virility regarding eggs are 91% and you may hatchability 80%. Success price of your younger try ninety% 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 had a leading manufacturing and you will stability. Including, Rhode Isle Yellow dicks got female parents and therefore placed believe it or not than 180 egg annually and you will Yurlov cocks originated from good hen which put 185 eggs.

From inside the 1953 how many Fish birds that have step three/8 away from Yurlov bloodstream is actually 227. These people were bred from inside the a close people in which relatives possibilities is actually always combine higher installing rate, viability, egg lbs and a good fleshing. New alive lbs of one’s ninety-day-dated Zagorsk Salmon cockerels try step one.seven kg; ninety.6% away from carcasses was https://datingmentor.org/nl/pansexual-dating-nl in fact ranked once the very first degrees.