Assessment of market conditions of the first generation hybrids of Antoniny-Zozulenets and Galician framed carp

Purpose. To characterize age-1+ hybrids obtained from the crossing of Galician framed carp (GFC) and Antoniny-Zozulenets framed carp (AZFC) according to a set of commercial conditions in comparison with parental lines. Methodology. The objects of the study were age-1+ hybrids of the reciprocal crossing of Galician and Antoniny-Zozulenets carps grown in pond conditions of the “Karpatskyi Vodogray” LLC. The study was conducted at the end of the growing season according to methodological recommendations. The body of the experimental carp for analysis was divided into its constituent parts: scales, fillet with skin, entrails, fins and bones. In the process of work, blood was removed, its weight was attributed to the entrails. The head was separated from the carcass by breaking it off between the occipital bone and the first vertebra.Each part was weighed separately and presented as a percentage of the total body weight. Findings. The obtained results showed that the yield of the main part of the fillet with skin in crossbred groups of age-1+ carp was 48.7–52.0% and was higher compared to purebred offspring.In comparison with the original maternal line, crossbred age-1+ ♀GFC ×♂AZFC had a higher index of relative fillet weight by 3.15%, and the similar 1.6% superiority was observed in crossbreds ♀AZFC × ♂GFC. At the same time, with an increase in the average weight of age-1+ by 28.9–68.6% in the 2023 studies, the relative weight of the carcass increased by 2.4–11.0%. At the same time, the relative weight of the head decreased by 5.3-6.1%, and the relative weight of the entrails increased by 0.7-4.7%. In general, the inedible part of the studied groups of fish was in the range of 27.2–32.4%. In terms of the yield of fillets per 1 ha of fattening pond, the superiority of interbreeding groups of age-1+ was 31.5–62.7%. The obtained results indicate the expediency of their use as new highly productive commercial lines in pond farms of the Polissiya zone. Originality. For the first time, a comparative analysis of the nutritional value parameters of age-1+ carp from reciprocal crossings of Galician and Antoniny-Zozulenet framed carp and the original pure lines cultivated in the conditions of Ukrainian Polissiya was carried out. Practical value. The obtained results will complement the studies of previous years and will allow providing recommendations on the use of these hybrids for commercial cultivation in the Polissiya zone of Ukraine.