VNIRO (Chief Researcher of the Department of Invertebrate Aquaculture; the Department of Aquaculture and Beekeeping, Professor, Chief Researcher)
Moscow, Russian Federation
UDK 57 Биологические науки
GRNTI 69.25 Аквакультура. Рыбоводство
OKSO 06.06.01 Биологические науки
OKSO 35.03.08 Водные биоресурсы и аквакультура
BBK 472 Рыбное хозяйство
The temperature conditions and the results of wintering of producers, incubation of caviar of sevryuga and thorn in farms on waste warm waters are considered. The studied indicators are compared with similar data obtained when keeping producers from natural populations in the lower reaches of the Volga River. In the considered species, with a shortened and comfortable "warm" wintering (for sevryuga at 5-11, thorn – 3-15°C), an increase in the duration of incubation up to a day or more was recorded in comparison with individuals from natural populations. The temperature regulations of wintering for producers, incubation and maintenance of free embryos are proposed.
sevryuga, thorn, water temperature, wintering of producers, incubation of caviar
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