Breeding work at the brand new populations off Russian White chickens try led so you’re able to growing alive pounds, eggs weight and you can eggs manufacturing.
EGG-Meats Breeds MOSCOW (Moskovskaya)
Which reproduce was developed throughout the 1946-67 by the experts of your own Moscow Timiryazev Academy out-of Agriculture of the mating this new crossbred children off Brown Leghorn men and Yurlov lady which have The fresh new Hampshire men. The three-method get across chickens was bred inter se. Solutions was accomplished having eggs development, stability and you will fleshing.
Inside very first phase off selection inbreeding was used. The typical inbreeding coefficient regarding the outlines was only about 20% plus the hereditary similarity grounds is actually forty-five%. The latest multiplication regarding outlines is actually centered on classification mating away from dicks having selected half-sibs otherwise sibs.
Because of the 1967 the fresh breeding flock, including the fresh outlines An effective, B, C and you can D, designated over seven 000 lead. In the better pencils the egg give hit 220 and you can champ levels brought 260-280 eggs per year.
As 1970 the new breeding out of Moscow birds has been carried out in the electric batteries and using fake insemination. At the time of 7 many years, an appearing the fresh range is made, M5, that have an enthusiastic eggs creation of 228 eggs annually. It’s familiar with create hybrids when you look at the crosses that have Light Leghorns. The fresh new hybrids set annually 230-250 egg consider 58-sixty grams. For the option for combining ability the newest yields out of hybrids are compared thereupon out of paternal sibs of one range as well as maternal sibs of your almost every other (controls); at the same time the newest productivity out-of mutual hybrids is opposed.
In the frequencies of ovalbumin genes (A – 0.989) this breed is close to meat-type breeds and in the allele frequencies of the G3 locus (A – 0.750) it is close to Brown and White Leghorns.
New reproduce come into Moscow and Saratov places as well as in new Ukraine. not by 1980 the stock had rejected so you’re able to 42 000 opposed having 61 one hundred thousand into the 1975.
Moscow chickens is bred getting egg and you will animal meat design. He has a broad head, wider and protruding nipple, much time and you may wide right back. Brand new plumage try heavy, black colored, with otherwise as opposed to golden hackles. Cocks keeps golden feathers to the shoulders and you can back. Ear-lobes is actually purple. Within the hens shanks was black-and-yellow; inside men shanks is actually paler, as opposed to pigmentation.
The fresh new live lbs of 8-week-old pullets is actually 0.8 which off cockerels are 0.nine kg; mature hens consider step one.9-dos.2 and you will dicks 2.6-2.8 kg. Egg-shell the colour is light brown. http://www.datingmentor.org/tr/mytranssexualdate-inceleme Virility regarding egg is located at ninety-five%; hatchability is 85%. Survival speed of your young and of people are 95 and you will 90% correspondingly. Annual efficiency averages 215-228 eggs weigh 56-58 grams. Provide application for each and every 10 eggs was 1.86-dos.00 kg.
MOSCOW White (Moskovskaya belaya)
Which reproduce are introduced while in the 1947-59 from the researchers of Ail-Relationship Institute away from Chicken Reproduction from the Zagorsk poultry ranch during the Moscow part by the mating Russian White hens and you can Plymouth Material and you can Pervomai cocks. Selection is actually based on the mixture of higher egg manufacturing which have an effective fleshing. The newest nucleus stock integrated merely birds which have a flower comb. Into the 1948 the latest hens and that found the standards of your own the brand new breed had the common eggs creation of 173 eggs to your pounds of 60-62 grams. New winner placed 219 eggs. An average live pounds of mature hens is actually dos.eight kilogram.
Moscow White chickens can be used for eggs and you can meat design. They have a deep and large system, red-and-light ear canal-lobes and you may a flower brush. Shanks try reddish and not long. This new alive weight off 8-week-old girls is 0.8 kilogram; adult hens consider 2.6 and you can cocks step three.six kg.
Many years at the sexual maturity is actually 170 weeks. The typical yearly development try 180 eggs away from 58 grams; egg-shell try white. Fertility of eggs was 95% and hatchability 90%. Survival rates of your younger inventory is actually 95% as well as grownups ninety%.