Ladies started to sexual maturity within 162 times of ages
Ladies started to sexual maturity within 162 times of ages
Black Speckled Australorps is bred having eggs creation. Plumage is actually black colored which have quick light places; ear-lobes are red; comb is unmarried. Off was white inside colour; shanks is white, some pigmented and not a lot of time.
73 as well as cockerels 0.88 kilogram. The newest real time lbs out-of 150-day-dated pullets was 1.82 which off adult hens dos.2 kilogram. The fresh new alive lbs away from dicks is actually dos.6 kilogram.
An average annual creation of Black colored Speckled Australorps was 200 egg weigh 55 g. Eggs shells try cream-coloured. Fertility out of eggs are 95%, hatchability 80-85%. Survival speed of your own younger around 150 days try 95%; that of grownups are 90%.
The fresh real time lbs of 56-day-dated pullets was 0
The birds are very well modified so you can electric battery staying sometimes physically otherwise during the groups. Another function are a top effectiveness pullorum condition. He could be crucial since the carriers of the recessive sp gene, that's responsible for the fresh light colour of this new plumage and you will a far greater appearance of carcasses. Introduction of it gene on the communities acquiring the dominating Age gene create sign up to their greater application of the chicken world.
RUSSIAN White (Russkaya belaya)
So it breed is produced during the 1929-53 of the mating Light Leghorn guys having females out-of local communities, with inter se reproduction of crosses with assorted levels out of Leghorn heredity. The newest crossbreeding in it Leghorns of different origin - Danish, English, Western - each having its individual production and you may external have. Choices encountered the purpose of improving eggs manufacturing, stability, rate of growth and you may alive lbs.
Just before 1965 Russian Whites was the primary egg-putting chickens in the USSR. The typical annual manufacturing is 175-190 eggs for each and every layer; egg pounds is 57-60 grams. In breeding condition farms the parship indir fresh new egg production of Russian Whites are 220-230 per year. Although not, around industrial criteria Russian Whites could not contend with imported traces and you can crosses out of White Leghorns. It decrease trailing because of the forty-50 eggs annually by up to 2.5-step three.0 grams into the egg weight.
Due to this the fresh new inventory of Russian Whites, which in 1975 is 31.eight billion, got diminished in order to 4.cuatro billion from the 1980. He's nevertheless used in significant amounts in the Turkmenia, Uzbekistan and you will Azerbaijan.
At present, breeding work on Russian White birds is carried out inside the Yasnaya Polyana reproduction ranch for the Stavropol region. Within the first phase (1967-69), breeding are predicated on choice and you will mothers was indeed evaluated from the the daughters' production. Inside 1970 the brand new breeding program are transformed so you're able to production of inbred lines (n = 40) and you can a control population. Part of the variety of inbreeding is actually ranging from paternal half of-sibs, rarely between complete sibs. The latest birds hatched into the 1973 had a keen inbreeding coefficient (Wright) away from nearly 37%. The average production of the half dozen greatest inbred traces inside the 475 months is 2 hundred-205 egg weighing 54-56 g. The crosses of them lines had a high development - 211-236 egg a-year.
Birds of the inhabitants try white for the lbs and develop quick egg. Their plumage is actually white; skin and you may shanks is actually red; he has an individual brush.
The live lbs of 8-week-dated pullets try 0.55 kilogram; that cockerels is actually 0.56 kilogram. Adult hens consider step one.6 kg, dicks dos.0 kilogram. Fertility out-of eggs has reached 93%; hatchability try 82%; endurance rate of young and grownups was 95 and you can ninety five% respectively. Eggs creation into the first and you can intermediate inhabitants through the 70 weeks of life is 182 and you may 206 eggs regarding 55 grams.
Of a few attention 's the inhabitants from Russian Light chickens in the new Most of the-Connection Research Institute out-of Ranch Creature Breeding and you can Family genes. It had been developed by choice for resistance to subnormal temperature in the the original days of existence and for high eggs production. Chickens are free of leukosis and possess a high effectiveness Marek's situation and carcinomas away from body organs. Girls are raised on temperatures being 8-ten lower than normal. In 1984 which populace numbered 500 lead.
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