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Information × Registration Number 0225U000223, (0121U108913) , R & D reports Title Theoretically substantiate the use of synthetic selection of structural units of Ukrainian carp breeds taking into account their genetic features popup.stage_title Надання комплексної рибницько-біологічної та генетичної оцінки чотириліток нових племінних масивів та промислових ліній українських коропів, отриманих з урахуванням генетичних особливостей вихідних форм Head Kurinenko Hanna A., Кандидат сільськогосподарських наук Registration Date 07-01-2025 Organization Institute of Fisheries of the National Academy of Agrarian Sciences of Ukraine popup.description1 The aim of the research is to determine ways to effectively use the genetic resources of Ukrainian carp breeds and their structural units to create new high-yielding carp massifs by synthetic selection and obtain new promising lines for industrial cultivation at different levels of aquaculture intensification and in different climatic zones. popup.description2 Research, it was found that the survival rate of four-year-olds averaged 94.9%, and was 1.1% higher in crossbred groups compared to pure lines. In yearlings, the average value was 77.7%. The average weight loss in the three crossbreds in the average composition was 5.1%, but was only 0.1% lower compared to the pure lines. In one-year-olds, weight loss during wintering ranged from 10.7% to 14.2%. The average survival rate of four-year-olds was in the range of 92.3 - 96.7% with an average value of 94.9%, with an advantage of crossbred groups by 1.1%. The average individual body weight of four-year-olds for the season was 3360 g, while in crossbred four-year-olds it was higher by 11.5% and amounted to 3515.0 g with a range of fluctuations from 3160.0 g to 4120.0 g. The average value of pure lines was 3153.3g, with a range of 3020.0g to 3400.0g. At the same time, the average indicator of the coefficient of fatness of crossbred carp was in the range of 2.68 - 3.08, with an average value of 2.86, pure breeding lines, respectively, 2.86 - 2.88 and 2.87. The average value of the high-spin index of crossbred carp was 2.71 units, with a range of 2.57 to 2.80 units, the advantage over pure lines was 2.2%. According to the average body girth index, no significant difference was noted, the average value was 1.19, with an advantage of only 0.6%. The survival of two-year-olds was in the range of 71.7 - 81.3%, with an average value of 76.4% and a predominance of local offspring of Galician carp. The average individual body weight of two-year-olds was in the range of 789.0 - 929.3 g. The highest quality productive indicators were obtained by crossing ♀HRK x♂ML(zl)K, the indicator of individual body weight exceeded the indicator of the pure line by 17.8%, and crossbred two-year-olds obtained from reciprocal crossing by 13.0%. Accordingly, indicators of fish productivity in the range of 872.1 - 1110.0 kg/ha were obtained. At the same time, feed costs ranged from 2.1 to 3.4 kg/kg. Product Description popup.authors Vitalii V. Bekh Borysenko Nataliia O. Buhil Roman F. Hrishyn Bohdan O. Hryhorenko Tetiana V. Derenko Andrii V. Kolesnyk Rafael R. Krasnopolska Olha V. Hanna A. Kurinenko Kuts Uliana S. Oborskyi Viktor Р. Ostapchuk Maksym S. Pryimak Volodymyr V. Syrovatka Denys A. TUCHAPSKYI Yaroslav V. Yurchak Suzanna V. popup.nrat_date 2025-01-07 Close