: - Minggu, 27-11-2022
  • 8 bulan yang lalu / UJIAN MADRASAH BERBASIS KOMPUTER TP 2021/2022 DIMULAI TGL 14-26 MARET 2022

Age intimate maturity is step 170 days

New alive weight out of 8-week-dated birds was 0.8 kg; adult hens consider dos.dos-2.5 and you will dicks 3.5-4.5 kilogram. Egg-shell try brown. Fertility out of eggs is actually 95% and you can hatchability 80-85%. Mortality of one’s young is 5-7% and of people 5%. The common development is actually 180-200 eggs annually; eggs weight are 58-sixty g. Producing winners try 270-290 egg.

Crossbred progeny out of Yerevan hens and Light Leghorn cocks create 230 eggs per year weigh 60 grams. The fresh real time pounds regarding adult layers try step one.8-dos.0 kg. Specialized eggs traces regarding Yerevan hens are used as women mothers when you look at the crosses having men contours off White Leghorns.

Specialized twin-goal (beef and you can eggs) contours of Yerevan birds was a very important genetic investment toward production of the fresh man-made chicken-and-eggs contours out-of broiler crosses.

YURLOV (Yurlovskaya)

This Naperville IL chicas escort breed was created in the Central Black-Environment zone of the Russian Federation into the Orlov, Kursk and you may Voronezh nations, by means of conventional options. Yards.F. Ivanov is actually of your advice your Yurlov breed originated from crosses off regional hens that have attacking dicks and you may Brahma guys.

The reproduce try formed from the extended set of cocks that have an effective solid and enough time-drawn-out crow. It was believed that choices into charm and amount of crowing carry out make it possible to generate a powerful constitution with powerful human anatomy and you can wide nipple.

During the 1941-45 the majority of brand new Yurlov population try lost. Into the 1948, the All the-Relationship Chicken Reproduction Institute put twenty seven specimens out-of Goryaninovka town when you look at the Kursk area. By 1951 the fresh gene maintenance society had risen up to two hundred head. The average overall performance within head was 124 egg a-year. After it absolutely was you’ll to boost the new abilities to 154 eggs out of 71 grams per year.

Yurlov birds are definitely the ancestors of a few brand new home-bred breeds: Pervomai, Adler Gold and you will Zagorsk Fish birds have within genotype 1/2-3/8 out-of Yurlov inheritance.

Yurlov birds feel the well-manifested letters of beef-types of Western and you can video game breeds. Their body was wide, strong and you can long. Your face try brief, that have broad front limbs, higher orbital arches and you may red-colored ear-lobes. He has one, rose or walnut comb. The new foot try a lot of time and solid, reddish otherwise black inside the colour. The fresh new plumage is rather fluffy and of various colour; dark silver, fish and red-colored certainly are the commonest. Girls feather really slow.

Brand new real time lbs of 8-week-old birds was 0.9-step 1.2 kg; mature hens consider dos.6-3.0 and you can dicks step three.5-cuatro.0 kilogram. Yearly design is actually 160-180 eggs out of sixty-80 g. Egg-shell is pink-brown. Fertility out of eggs is actually 91% and hatchability 80%. Survival price of the young try ninety% and of adults 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 origin birds had a leading design and stability. Instance, Rhode Isle Red-colored dicks got females mothers and therefore placed believe it or not than 180 egg a-year and you will Yurlov dicks descended out-of a beneficial hen hence applied 185 eggs.

In 1953 the amount of Fish birds having step 3/8 out-of Yurlov bloodstream is 227. They certainly were bred in a closed society in which friends solutions is actually used to mix large putting rate, stability, egg weight and you will an effective fleshing. The new real time weight of your 90-day-dated Zagorsk Fish cockerels was step 1.7 kilogram; ninety.6% away from carcasses was indeed rated because the first degree.



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