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Fluoride retention after dietary fluoride exposure in Siberian sturgeon Acipenser baerii.

机译:西伯利亚st鱼Acipenser baerii饮食中氟化物暴露后的氟化物保留。

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摘要

This study evaluated the uptake of fluoride ions (F-) in tissues of juvenile Siberian sturgeon ( Acipenser 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. copyright 2011 Blackwell Publishing Ltd.
机译:这项研究评估了少年西伯利亚st(Acipenser baerii)组织中氟离子(F -)的吸收。鱼饲喂含75.2(对照),162.6、360.8、710.2和1478.3 mg F - kg -1 的饲料,一式三份,其中F -< / sup>添加为NaF。鱼饲料中添加710.2或1478.3 mg F - kg -1 的生长受到抑制,而鱼饲料中添加162.6或360.8 mg F 的饮食则没有抑制生长- kg -1 。仔猪,软骨,皮肤和g中的F -浓度随时间和饮食中F -浓度的增加而增加,并且随着实验结束时浓度的增加,最高最低水平:sc(7721.3 mgF - kg -1 ),软骨(2324.2),g(721.4)和皮肤(262.5)。随着饮食中F -水平的增加,肌肉,肝脏,肠道和幽门未积累F -。因此,西伯利亚st鱼饮食中可包含高达360.8 mg F - kg -1 的F -,而不会对生长或繁殖产生不利影响。生存。日粮中的F -低至162.6 mg F - kg -1 增加了果皮中F -的浓度和软骨,而软骨中F -的高浓度可能会危害the鱼的软骨消耗。版权所有2011 Blackwell Publishing Ltd.

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