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Ribogospod. nauka Ukr., 2022; 4(62): 73-88
DOI: https://doi.org/10.15407/fsu2022.04.073
УДК 639.371.52:639.3.032(477)

Characteristics of the first selective breeding generation of the antoninsko-zozulenetsky intrabreed type of Ukrainian carp breeds at the 3rd and 4th years of life

V. Oborskyi, This email address is being protected from spambots. You need JavaScript enabled to view it. .uа, Institute of Fisheries NAAS, Kyiv
G. Kurynenko, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
I. Hrystyniak, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
M. Osipenko, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
B. Hankevych, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv

Purpose. To provide a comprehensive characterization of the first selective breeding generation of the Antoninsko-Zozulenetsky intrabreed type of Ukrainian carp breeds at the 3rd and 4th year of life based on piscicultural and biological parameters.

Methodology. The material for the study were age-2+ and age-3+ Antoninsko-Zozulenetsky carps. The main piscicultutral and biological parameters were studied during spring valuation and autumn harvest according to generally accepted methods in fish farming. The external evaluation of the experimental groups was carried out according to the following parameters: body weight and length, body depth, body girth. Measurements were made with a centimeter tape with an accuracy of 1 mm. Individual weighing of fish was carried out on electronic commercial scales with an accuracy of 1 g. Based on the results of the measurements, following exterior parameters were analyzed and determined: girth index, body length to depth ratio, head index.

Findings. The study showed that both age-2 and age-3 framed carp had a lower weight loss rate of 11.95 and 10.11%% compared to 12.89 and 12.73%% in the scaly form. The yield from wintering was within 88.6–89.8% of age-2 fish and 88.9–89.3% of age-3 fish.

The average body weight gain age-2+ framed carp during the season was 1.3 kg, the scaly carp - 1.1 kg. On the fourth year of life, this parameter in scaly carp was 1.6 kg, framed carp - 1.5 kg. Survival rate during the growing season was higher than standard values and was on average 96.8% in age-2+ fish and 95.9% in age-3+ fish. According to external parameters, age-2+ framed carp had higher values ​​of the body length to depth ratio by 0.3, compared to their peers with a scaly cover. The advantage of this experimental group was also in terms of condition factor: 2.56 versus 2.26. On the other hand, among age-3+, scaly individuals had an advantage according to the body length to depth ratio. Age-3+ framed carp prevailed in terms of the condition factor.

Originality. A comparative analysis of piscicultural and biological parameters of the replacement and brood stock of the first selection generation of the Antoninsko-Zozulenetsky intrabreed type of carp was carried out in the conditions of Ukraine for the first time.

Practical value. The use of brood fish of a new inbred type with defined features of the genotype will allow obtaining new promising lines for industrial cultivation at different levels of intensification of aquaculture and in different climatic zones, as well as hybrids between geographically isolated populations.

Key words: carp, selective breeding, intra­breed type, generation, exterior, weight, condition factor.

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