| 摘要 |
The invention relates to a subpopulation of red Rhode- Island breed, a homozygote for the golden gene, intended to producing the simple hybrid male (5A x 3B) required for obtaining, by its crossing with the simple hybrid female (5Cx5D) - the homozygote for silver gene- belonging to white Rhode-Island breed, the ROSO SL-2000 hybrid hens used in the production of consumption eggs with pigmented shell, meant for the population. The heterosomal silver and golden genes play the role in transmitting the feathering colour to the one-day-old hybrid chickens and allow to distinguish the hybrid young cocks from the hybrid young hens. The productive features of the line are: 308 eggs per foddered female in a productive cycle, with the egg average weight of 58.1 g and 60.9 g at the ages of 26 and 34 weeks, 1980 g the average female weight and 2710 g the average male weight at the age of 34 weeks; the hens lay the first egg at the age of 150 days; 95 ...96% youngster viability and 94 ... 95 % adult viability, 90.5 % average fertility and 80.9 % egg hatchability. The poultry belonging to this line are calm and resistant to diseases.
|
