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Daily patterns of ammonia nitrogen output of Siberian sturgeon Acipenser baeri (Brandt) of different body weights
Author(s) -
Jatteau P
Publication year - 1997
Publication title -
aquaculture research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.646
H-Index - 89
eISSN - 1365-2109
pISSN - 1355-557X
DOI - 10.1046/j.1365-2109.1997.00894.x
Subject(s) - sturgeon , biology , ammonia , zoology , fishery , acipenser , body weight , fish <actinopterygii> , nitrogen , endocrinology , biochemistry , chemistry , organic chemistry
The daily pattern of ammonia nitrogen outputs of five weight groups of Siberian sturgeon, Acipenser baeri (Brandt), was studied. Regardless of weight, there was a delay of 3 h between the start of feeding and the increase in ammonia output. For sturgeon reared at 17°C with continuous feeding, the total ammonia output levels (NH 4 ‐N + NH 3 ‐N) decreased from 530 mg kg −1 per day for fish weighing 40 g, to 239 mg kg −1 per day for fish weighing 1700 g. The study showed that continuous feeding is suitable in sturgeon farms in terms of ammonia loadings.