Питание разновозрастного европейского сома при выращивании в рыбоводных прудах
2011
Dokuchaeva, S.I. | Konchits, V.V. | Fedorova, V.G., National Academy of Sciences. Scientific and Practical Center of Animal Breeding (Belarus). Institute for Fish Industry
In the conditions of the Republic of Belarus there was studied qualitative and quantitative feeding characteristic of mixed-age catfish (Silurus glanis) in the process of rearing in fish-breeding ponds. In course of the study there was given qualitative and quantitative characteristic of feeds of catfish fingerlings in rearing ponds; some characteristic of fingerlings feeding; peculiar feature of two-year and three-year old catfish diets. Research results showed high rate of growth and indexes of fullness of stomach proved on sufficient supply with natural forage of mixed-age catfish in the process of rearing in Belarusian ponds. In the beginning of the season the feeding of young fish was based on zooplankton and insects (Chydorus sphaericus; Daphnia longispina; Arcella sp.; Ostrocoda sp.), next in addition to them in the second half of the season there was used fishfood the average ratio of which in the catfish diet was 47%. Two- and three-year old catfish except representatives of local ichthyofauna fed with amphibians and insects, and as a result furthered to the increasing of the natural capacity of ponds.
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