Black colored Speckled Australorps was bred having eggs manufacturing. Plumage is black colored that have small white places; ear-lobes was reddish; brush was unmarried. Off is white from inside the the colour; shanks was light, somewhat pigmented and never enough time.
73 as well as cockerels 0.88 kilogram. New alive lbs out of 150-day-dated pullets was step one.82 which from adult hens 2.2 kg. The newest real time weight out-of cocks is actually 2.6 kg.
The average annual production of Black Speckled Australorps is actually two hundred eggs weigh 55 grams. Egg shells is ointment-coloured. Fertility of egg was 95%, hatchability 80-85%. Success rates of the younger as much as 150 months was 95%; that of adults is 90%.
The latest real time lbs out of 56-day-old pullets are 0
The latest wild birds are adjusted to help you power supply keeping either personally otherwise during the organizations. Various other element was a top effectiveness pullorum disease. He could be important as providers of the recessive sp gene, that’s guilty of the brand new white color of new plumage and you can a better appearance of carcasses. Regarding which gene toward communities acquiring the dominant E gene carry out join its broad usage because of the poultry community.
RUSSIAN White (Russkaya belaya)
It breed was brought while in the 1929-53 by the mating White Leghorn boys that have female of regional communities, with inter se breeding regarding crosses with different levels off Leghorn heredity. The crossbreeding in it Leghorns of different resource – Danish, English, American – each using its own design and additional have. Solutions encountered the aim of improving eggs manufacturing, viability, rate of growth and you may real time lbs.
Prior to 1965 Russian Whites was basically the principal eggs-putting birds regarding USSR. The common yearly creation is actually 175-190 egg for every level; eggs pounds are 57-sixty grams 
. In-breeding state facilities brand new egg creation of Russian Whites are 220-230 a year. Although not, lower than commercial criteria Russian Whites could not take on imported contours and you can crosses out of Light Leghorns. It decrease about by the forty-fifty eggs a year and also by doing dos.5-step three.0 grams into the egg pounds.
For this reason the fresh inventory out of Russian Whites, which in 1975 is actually 31.seven billion, got decreased so you’re able to 4.4 billion by the 1980. He is still found in significant amounts inside the Turkmenia, Uzbekistan and Azerbaijan.
At this time, breeding manage Russian Light chickens is done for the Yasnaya Polyana breeding ranch for the Stavropol area. From inside the earliest phase (1967-69), breeding try predicated on solutions and you may moms and dads were examined because of the their daughters’ manufacturing. During the 1970 the newest breeding program is transformed to help you production of inbred outlines (n = 40) and you may a running people. An element of the type of inbreeding is between paternal 1 / 2 of-sibs, rarely anywhere between complete sibs. New wild birds hatched within the 1973 had an inbreeding coefficient (Wright) away from nearly 37%. An average creation of the newest half a dozen ideal inbred contours into the 475 days is 2 hundred-205 eggs weighing 54-56 g. New crosses of them outlines had a higher production – 211-236 egg per year.
Chickens on the populace is white when you look at the lbs and produce brief eggs. Its plumage try white; surface and you may shanks are purple; he’s got one brush.
The brand new real time lbs of 8-week-old pullets is 0.55 kilogram; that cockerels is actually 0.56 kg. Mature hens weigh step one.6 kilogram, cocks 2.0 kg. Fertility out of eggs is at 93%; hatchability are 82%; endurance rate from young and you will grownups try 95 and you may ninety-five% respectively. Eggs production towards first and you can intermediate people throughout 70 weeks away from every day life is 182 and you can 206 egg out of 55 g.
Of a few attract ‘s the inhabitants from Russian White birds on the newest All of the-Connection Lookup Institute of Farm Creature Reproduction and you can Genetics. It was developed by option for effectiveness subnormal heat in the initial days of lifetime and also for highest eggs design. Chickens is actually free of leukosis and possess a premier effectiveness Marek’s condition and you may carcinomas regarding internal organs. Chicks is actually increased within temperature which happen to be 8-10 lower than typical. Back in 1984 which inhabitants designated five-hundred lead.