Reproduction and commercial cultivation of chinese perch Siniperca chuatsi in conditions of a warm-water farm
| Autor: | E. I. Rachek |
|---|---|
| Jazyk: | ruština |
| Rok vydání: | 2023 |
| Předmět: | |
| Zdroj: | Известия ТИНРО, Vol 203, Iss 4, Pp 1020-1039 (2023) |
| Druh dokumentu: | article |
| ISSN: | 1606-9919 2658-5510 |
| DOI: | 10.26428/1606-9919-2023-203-1020-1039 |
| Popis: | A breeding stock of chinese perch was gotten in a warm-water farm located in the southern Far East of Russia, where the experiment is conducted on growing this species up to three years. Combined method of growing in tanks, warm-water fry ponds and cages was used for growing the fingerlings, but two- and three-year old perches were kept in cages only and fed with live and non-living low-value forage fish. There were attempts to train two-year-old perch to feed on wet artificial pellets. By the end of the experiment, three-year-old chinese perches of two size groups had the body weight of 700−880 g with the maximum of 1600 g. Feed costs for the growth of two- and three-year-old fish in the growing seasons were 2.7−3.9 and 5.3−5.6 kg per 1 kg gain, respectively; their survival was 98−100 %. In 2023, the two-year-old perches weighing 0.5−1.1 kg were used for the first time in spawning and their offspring were raised to an average weight of 60 g. |
| Databáze: | Directory of Open Access Journals |
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