Lady come to sexual readiness at the 162 days of decades

Lady come to sexual readiness at the 162 days of decades

Black colored Speckled Australorps is actually bred for egg production. Plumage is actually black colored which have quick light places; ear-lobes was yellow; comb try unmarried. Down are light in along with; shanks try light, a little pigmented and not a lot of time.

73 as well as cockerels 0.88 kilogram. The fresh new live pounds of 150-day-dated pullets is step 1.82 and this out-of adult hens dos.dos kilogram. Brand new alive lbs of dicks is actually 2.6 kg.

The average yearly production of Black colored Speckled Australorps was two hundred egg weighing 55 grams. Egg shells are ointment-colored. Fertility out-of egg are 95%, hatchability 80-85%. Success speed of young up to 150 months is actually 95%; that of people is ninety%.

New live weight out of 56-day-dated pullets was 0

Brand new birds are well adjusted to electric battery keeping either yourself otherwise for the groups. Several other ability was a leading resistance to pullorum problem. He or she is crucial because the carriers of the recessive sp gene, which is responsible for the brand new light colour of the brand new plumage and you may a much better appearance of carcasses. Introduction of that it gene towards communities obtaining principal Elizabeth gene carry out contribute to their wide usage by poultry industry.

RUSSIAN White (Russkaya belaya)

This reproduce are put through the 1929-53 by the mating Light Leghorn boys with women from regional populations, accompanied by inter se reproduction from crosses with assorted levels from Leghorn inheritance. The fresh new crossbreeding inside it Leghorns of different origin – Danish, English, Western – each which consists of own manufacturing and external enjoys. Possibilities encountered the function of improving eggs design, viability, rate of growth and you will alive pounds.

Ahead of 1965 Russian Whites was in fact the main eggs-installing birds about USSR. The average yearly manufacturing was 175-190 egg for every single covering; eggs weight try 57-sixty g. In breeding county facilities this new egg creation of Russian Whites are 220-230 per year. But not, lower than industrial criteria Russian Whites could not take on imported outlines and you may crosses out-of White Leghorns. They dropped about by 40-50 eggs a-year and also by as much as 2.5-3.0 grams inside the eggs weight.

For this reason new stock off Russian Whites, that 1975 are 30.eight mil, had reduced to help you 4.4 billion from the 1980. He or she is still included in significant number within the Turkmenia, Uzbekistan and you may Azerbaijan.

Today, breeding manage Russian Light chickens is performed for the Yasnaya Polyana breeding ranch within the Stavropol area. In earliest stage (1967-69), breeding are based on selection and you can mothers were examined of the the daughters’ creation. From inside the 1970 the fresh new reproduction program is actually transformed to help you production of inbred lines (n = 40) and you will a handling society. An element of the types of inbreeding try anywhere between paternal 50 % of-sibs, seldom between full sibs. New wild birds hatched during the 1973 had an inbreeding coefficient (Wright) away from almost 37%. The typical production of the six best inbred contours during the 475 days try 200-205 egg weigh 54-56 grams. The fresh new crosses ones outlines got increased creation – 211-236 eggs per year.

Chickens of the populace try white when you look at the pounds and develop brief eggs. Their plumage are light; epidermis and shanks is actually yellow; they have a single comb.

The real time weight out-of 8-week-dated pullets are 0.55 kg; that of cockerels is actually 0.56 kg. Mature hens weighing step 1.6 kilogram, dicks dos.0 kg. Virility regarding eggs is at 93%; hatchability is 82%; endurance rates of younger and you may people is 95 and you can ninety five% respectively. Egg development to your initial and you may intermediate populace through the 70 days away from every day life is 182 and you may 206 egg away from 55 g.

Of a few focus ‘s the society regarding Russian White birds within new All of the-Union Research Institute of Farm Creature Breeding and you may Genes. It absolutely was created by choice for effectiveness subnormal heat into the the first days of existence as well as for large eggs production. Birds is without leukosis and now have a high resistance to Marek’s condition and you will carcinomas out-of body organs. Girls are elevated on temperatures that are 8-ten less than normal. In 1984 so it society numbered five-hundred head.