Females started to intimate readiness in the 162 times of decades

Females started to intimate readiness in the 162 times of decades

Black colored Speckled Australorps are bred to possess eggs development. Plumage are black that have small white locations; ear-lobes try reddish; comb are solitary. Down are white in the along with; shanks was white, some pigmented rather than a lot of time.

73 as well as cockerels 0.88 kg. New live pounds of 150-day-old pullets is actually step 1.82 hence of mature hens 2.2 kg. New live weight off cocks is dos.six kilogram.

The average yearly creation of Black colored Speckled Australorps was two hundred eggs consider 55 grams. Egg shells was lotion-colored. Fertility out of egg are 95%, hatchability 80-85%. Emergency rate of your own young doing 150 days are 95%; compared to people are ninety%.

The new live lbs from 56-day-dated pullets are 0

The newest birds are adjusted to electric battery remaining often individually otherwise into the communities. Another element is actually a premier effectiveness pullorum condition. He could be very important as carriers of recessive sp gene, which is responsible for the new white colour of the latest plumage and you will a much better appearance of carcasses. Regarding this gene for the populations obtaining the principal Elizabeth gene carry out subscribe to their wider utilization by the poultry industry.

RUSSIAN White (Russkaya belaya)

So it breed is actually produced during 1929-53 of the mating White Leghorn men that have lady away from regional communities, followed by inter se breeding out-of crosses with different grades of Leghorn genetics. The latest crossbreeding inside Leghorns of various source – Danish, English, American – per using its escort service Murfreesboro very own development and additional has actually. Possibilities had the aim of improving eggs production, stability, growth rate and you may live lbs.

Ahead of 1965 Russian Whites was the main egg-putting chickens on USSR. The common annual creation is 175-190 eggs for each covering; eggs pounds is actually 57-sixty grams. In breeding state facilities the fresh new egg creation of Russian Whites is 220-230 a year. not, less than commercial criteria Russian Whites cannot contend with imported contours and you may crosses from Light Leghorns. It fell behind because of the forty-50 eggs a-year and also by as much as 2.5-step three.0 grams for the egg lbs.

Due to this fact the inventory of Russian Whites, which in 1975 are 31.eight billion, got decreased to help you cuatro.4 million by 1980. They are however found in big quantity in the Turkmenia, Uzbekistan and Azerbaijan.

At this time, reproduction run Russian White birds is done for the Yasnaya Polyana reproduction ranch from inside the Stavropol area. When you look at the basic stage (1967-69), reproduction try centered on choices and you can mothers had been evaluated by the daughters’ design. In the 1970 brand new reproduction system was turned to help you creation of inbred contours (n = 40) and a control people. Part of the version of inbreeding was anywhere between paternal 50 % of-sibs, seldom between complete sibs. The newest birds hatched within the 1973 got an inbreeding coefficient (Wright) off nearly 37%. The average creation of new half dozen best inbred contours from inside the 475 weeks are 200-205 eggs weighing 54-56 g. The fresh crosses of them outlines got a high design – 211-236 eggs annually.

Birds in the people is white in lbs and develop quick eggs. The plumage try light; surface and you can shanks try red; he’s got one comb.

The latest live weight out of 8-week-old pullets try 0.55 kilogram; that of cockerels was 0.56 kilogram. Adult hens weighing step one.six kilogram, cocks 2.0 kg. Virility away from eggs are at 93%; hatchability is 82%; endurance price out of young and you can adults are 95 and ninety-five% correspondingly. Egg manufacturing toward initial and you can intermediate society through the 70 months out-of life is 182 and you will 206 eggs out of 55 grams.

Of a few attention ‘s the people regarding Russian White chickens at the brand new All the-Union Browse Institute out-of Ranch Creature Breeding and you may Genes. It actually was produced by choice for resistance to subnormal temperatures inside the initial times of lives as well as for higher egg creation. Chickens is free of leukosis and have a leading effectiveness Marek’s situation and you can carcinomas off organs. Girls are raised during the temperature that are 8-ten less than typical. Back in 1984 it people numbered five hundred head.

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