Females started to sexual maturity at 162 times of age

Black colored Speckled Australorps is bred having eggs development. Plumage is actually black with small white places; ear-lobes is actually red-colored; comb try unmarried. Off was light from inside the the color; shanks is light, a little pigmented rather than much time.

73 and of cockerels 0.88 kilogram. The new live pounds out of 150-day-old pullets are 1.82 hence from adult hens dos.2 kilogram. The fresh new real time pounds away from cocks try 2.six kilogram.

The common yearly creation of Black colored Speckled Australorps are 200 eggs consider 55 g. Eggs shells is cream-colored. Virility from egg gay hookup apps iphone is actually 95%, hatchability 80-85%. Emergency rates of the young to 150 months is 95%; compared to people is actually ninety%.

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

The fresh new wild birds are well adapted so you’re able to electric battery remaining sometimes individually otherwise during the organizations. Several other ability was a high resistance to pullorum problem. He could be crucial just like the providers of your recessive sp gene, which is responsible for the new white shade of this new plumage and you can a better appearance of carcasses. Regarding this gene to your communities acquiring the dominating Age gene do contribute to the wider usage by chicken business.

RUSSIAN White (Russkaya belaya)

Which breed was brought throughout 1929-53 by the mating Light Leghorn people with girls of local communities, followed closely by inter se reproduction out of crosses with various levels regarding Leghorn heredity. This new crossbreeding inside it Leghorns of various provider – Danish, English, American – per which consists of individual design and you may additional features. Choices met with the aim of improving eggs development, stability, rate of growth and real time pounds.

Before 1965 Russian Whites was in fact the principal eggs-laying birds from the USSR. The typical annual production are 175-190 egg for each and every covering; egg pounds is actually 57-sixty grams. In breeding state farms the brand new egg production of Russian Whites was 220-230 a-year. However, under industrial criteria Russian Whites couldn’t take on imported lines and you can crosses out-of Light Leghorns. It fell behind by the forty-50 eggs a year by as much as 2.5-step three.0 grams when you look at the eggs weight.

Because of this brand new inventory from Russian Whites, that 1975 is actually 30.eight million, had decreased in order to 4.cuatro mil by 1980. He is nonetheless used in big number when you look at the Turkmenia, Uzbekistan and you may Azerbaijan.

Currently, breeding manage Russian White chickens is done into the Yasnaya Polyana breeding ranch in the Stavropol area. Within the very first stage (1967-69), reproduction try based on selection and you will mothers have been evaluated by their daughters’ design. For the 1970 brand new breeding program are turned to production of inbred outlines (n = 40) and a processing society. An element of the particular inbreeding is actually anywhere between paternal half of-sibs, seldom anywhere between full sibs. The fresh new birds hatched inside 1973 had a keen inbreeding coefficient (Wright) regarding almost 37%. The average production of the latest six greatest inbred lines from inside the 475 weeks is actually two hundred-205 eggs weighing 54-56 g. Brand new crosses of those lines got a top creation – 211-236 eggs per year.

Birds associated with the inhabitants is white in the pounds and develop short egg. The plumage try white; skin and you will shanks was reddish; they have just one brush.

The latest live pounds off 8-week-old pullets was 0.55 kilogram; that cockerels was 0.56 kilogram. Adult hens weighing step one.6 kilogram, cocks 2.0 kilogram. Virility out-of egg reaches 93%; hatchability is actually 82%; endurance speed away from more youthful and people is actually 95 and you may ninety-five% respectively. Egg creation towards first and you can intermediate inhabitants during 70 months out-of every day life is 182 and you can 206 egg out-of 55 g.

Of some focus is the society regarding Russian Light chickens from the the Most of the-Union Look Institute out-of Ranch Animal Reproduction and you may Family genes. It actually was produced by selection for effectiveness subnormal temperatures into the the original days of life and for high egg creation. Chickens is actually clear of leukosis and also have a top resistance to Marek’s disease and carcinomas from organs. Girls are raised from the heat which happen to be 8-ten below regular. Back in 1984 so it society numbered 500 direct.