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Information × Registration Number 0218U003180, 0117U004801 , R & D reports Title To study the level of manifestation microlines chickens economically useful traits of different origin of the breed White Plymouth Rock popup.stage_title Head Pankova Svitlana, Registration Date 25-01-2018 Organization State poultry research station of the National Academy of Agrarian Sciences of Ukraine popup.description2 The efficiency of selection work with poultry in the factory line G2 of meat and egg breed Plymutrok was confirmed, especially in the direction of increasing egg production and egg weight, since these indices are significantly higher compared to the same breed of bird that was kept for a long time without breeding activities. A program for the use of the bird of the G25 microline in the work of a breeding farm for breeding chickens of the Plymuthrock breed has been developed. The young of the selection line G2 is characterized by a larger live mass, especially in the first 10 weeks of life, when the advantage over the microline G25, in which breeding was not carried out for a long time, reached 43%. At the end of the cultivation (16 weeks of bird life), the difference between the groups was 4.8% in favor of breeding - 1.74 kg versus 1.66 kg. Yaytsenoskost adult chickens of the eliminated poultry of the G2 line for 51 weeks of life was 110 pcs. on the average layer, which is 10% higher than the G25 microline. By the weight of eggs, the layers of the G2 line were significantly higher than the corresponding index in the G25 microline, both at the age of 30 weeks (by 6%) and 49 weeks (by 8.5%). Due to the lower feed costs for production of 10 eggs, the content of hens of the selection line G2 is more profitable - 87.7% versus 78% in the non-selective microline G25, the cost of the hatching egg is 4.36 UAH. against 4.62 UAH, respectively. The economic efficiency of production of incubation eggs by the bird of the G2 line was 16.5 UAH. / goal Product Description popup.authors Захарченко Ольга Павлівна Шемет Тетяна Анатоліївна popup.nrat_date 2020-04-02 Close