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Fluoride retention after dietary fluoride exposure in S iberian sturgeon A cipenser baerii
Author(s) -
Shi Xiaotao,
Wang Ruifang,
Zhuang Ping,
Zhang Longzhen,
Feng Guangpeng
Publication year - 2013
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 - 10.1111/j.1365-2109.2011.03021.x
Subject(s) - sturgeon , biology , zoology , fluoride , cartilage , medicine , endocrinology , fish <actinopterygii> , anatomy , fishery , chemistry , inorganic chemistry
This study evaluated the uptake of fluoride ions (F − ) in tissues of juvenile Siberian sturgeon ( A cipenser baerii ). Fish were fed diets containing 75.2 (Control), 162.6, 360.8, 710.2, 1478.3 mg F − kg −1 in triplicate for 12 weeks with F − added as NaF. Growth was inhibited in fish fed diets with 710.2 or 1478.3 mg F − kg −1 , but was not inhibited in fish fed diets with 162.6 or 360.8 mg F − kg −1 . The F − concentration in scute, cartilage, skin and gill increased with time and dietary F − concentration, and with the order of concentration at the end of the experiment, highest to lowest levels: scute (7721.3 mgF − kg −1 ), cartilage (2324.2), gill (721.4) and skin (262.5). Muscle, liver, gut and pylorus did not accumulate F − with increasing F − level in the diet. Thus, F − up to 360.8 mg F − kg −1 can be included in the Siberian sturgeon diet without an adverse effect on growth or survival. The F − as low as 162.6 mg F − kg −1 in diet increased F − concentrations in scute and cartilage, and the high concentration of F − in cartilage is possibly a danger to the consumption of cartilage in sturgeon.