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Ribogospod. nauka Ukr., 2020; 4(54): 68-77
DOI: https://doi.org/10.15407/fsu2020.04.068 
УДК 639.371.14:639.3.06

WEIGHT AND LINEAR PARAMETERS OF JUVENILES OF COREGONIDS (COREGONINAE) GROWN IN CONDITIONS OF RECIRCULATED AQUACULTURE SYSTEMS

І. Кravchenko, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
А. Кucheruk, anna‐ This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv
А. Mruk, This email address is being protected from spambots. You need JavaScript enabled to view it. , Institute of Fisheries NAAS, Kyiv

Purpose. Determining the growth dynamics of whitefish juveniles in conditions of recirculated aquaculture systems to current needs of industrial aquaculture of Ukraine.

Methodology. The work was performed in accordance with generally accepted guidelines used for coregonid rearing in industrial aquaculture. The study was conducted in a specialized farm for whitefish breeding - "Lavaretus" LLC.

Findings. Weight and linear growth during the period of cultivation in controlled conditions of whitefish young-of-the-year were characterized by dynamics, which were generally close to that typical for coregonids. The study included four coregonid species with different feeding types. Planktivorous (peled), bentivorous (whitefish), polyphagous species that is able to feed on various food organisms (muksun) and peled/broad whitefish hybrid. Feeding regime: during the transition to the mixed feeding was carried out 48 times a day (14 hours with an interval of 15 and 30 minutes) manually; further, according to an increase in fish weight was reduced to 4 times a day using automatic feeders. The average weight and length of young-of-the-year grown in a recirculating aquaculture system was: - peled – 5.6 ± 0.4, muksun – 10.1 ± 0.6.9, Baltic whitefish – 8.6 ± 1.2 g, peled/broad whitefish hybrid – 7.9 ± 0.2 g. The coefficient of variability of weights were: peled – 40.4%, muksun – 32.2%, Baltic whitefish – 21.1%, peled/broad whitefish hybrid – 41.9%.

Originality. New data on piscicultural-biological parameters and dynamics of growth of juveniles of various coregonids or cultivation in conditions of a recirculating aquaculture system were obtained.

Practical value. The development of whitefish farming technology in RAS conditions, which, in contrast to salmon cultivation, is only at the initial stage of implementation, so obtained data will be the basis for the development of whitefish culture in Ukraine.

Key words: recirculating aquaculture system, young-of-the-year, coregonids, length-weight parameters, rearing.

REFERENCE

  1. Brajnballe, Ja. (2010). Rukovodstvo po akvakul'ture v ustanovkah zamknutogo vodosnabzhenija. Kopengagen.
  2. Kostousov, V. G., Pljuta, M. V., & Rogovcov, S. V. (2015). Fiziologicheskoe sostojanie i rost siga v uslovijah UZV. Voprosy rybnogo hozjajstva Belarusi, 31, 92-102.
  3. Kostousov, V. G., Zherdeckaja, L. P., & Gajshhuk, V. V. (1987). Opyt podrashhivanija lichinok peljadi s ispol'zovaniem suhih startovyh kormov. Inf. Listok BelNIINTI, 030.
  4. Kurinenko, H. A. (2016). Vyroshchuvannia peliadi (Goregonus peled Gmelin, 1788) za riznykh tekhnolohii v umovakh rybnoho hospodarstva Ukrainy. Exlend abstract of candidates thesis. Kyiv.
  5. Knjazeva, L. M., & Kostjunichev, V. V. (1991). Metodicheskie rekomendacii po biotehnike vyrashhivanija ryboposadochnogo materiala sigovyh. Sankt-Peterburg: GosNIORH.
  6. Knjazeva, L. M., Kostjunichev, V. V., & Shumilina, A. K. (1998). Metodicheskie rekomendacii po vyrashhivaniju tovarnyh sigov (chir, muksun) v industrial'nyh uslovijah. Sankt-Peterburg: GosNIORH.
  7. Kostousov, V. G., Barulin, N. V., Rogovcov, S. V., & Novikova, E. G. (2013). Opyt vyrashhivanija siga Coregonus lavaretus lavaretus (Linnaeus, 1758) v uslovijah industrial'nogo forelevogo kompleksa. Voprosy rybnogo hozjajstva Belarusi, 29, 176-191.
  8. Ostroumova, I. N. (2005). Problema Startovih kormov i fiziologichesike aspekty kormlenija lichinok ryb. Aktual'nye problemy vyrashhivanija i kormlenija ryb na raznyh jetapah zhiznennogo cikla: sb. nauch. tr. Sankt-Peterburg: Kompleks, 33, 207-259.
  9. Rogovcov, S. V., Burulin, N. V., & Kotousov, V. G. (2018). Rybovodno-tehnologicheskie parametri vyrashhivanija sigovyh ryb v ustanovkah zamknutogo vodosnabzhenija. Zhivotnovodstvo i veterinarnaja medicina, 2(29), 18-25.
  10. Shumylyna, A. K. (2012). Sbornyk metodycheskykh rekomendatsyi po yndustryalnomu vyrashchyvanyiu syhovykh ryb dlia tselei vosproyzvodstva y tovarnoi akvakultury. Sankt-Peterburg: HosNYORKh.
  11. Lauff, M., & Hofer, R. (1984). Proteolytic enzymes in fish development and the importance of dietary enzymes. Aquaculture, 37(4), 335-346. https://doi.org/10.1016/0044-8486(84)90298-9