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SELENIUM ACCUMULATION IN COTURNIX QUAIL FED SELENO-L-METHIONINE

机译:鹌鹑鹌鹑饲喂硒代L-蛋氨酸中的硒积累

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摘要

The accumulation of selenium in Coturnix quail, a sensitive species to selenium toxicity, was studied. Quail were fed diets containing 0.7 μg/g (control), 12 μg/g (low-Se), and 22 μg/g (high-Se) as seleno-L-methionine for four weeks. At the end of the four weeks, blood selenium in the treatment groups had a positive significant relationship to diet, and selenium in blood was approximately two times, and in livers was approximately three times, the dietary concentration. Quail in the low-Se group accumulated selenium to higher levels over the same time period than American kestrels and mallards fed selenomethionine at similar concentrations in other studies. Food consumption was similar among the groups throughout the study. Body mass, as a percent of initial body mass, was similar in the control and low-Se groups (102%) but lower in the high-Se group (97%). Liver mass, as a percent of initial body mass, showed a positive dose-dependent response to dietary selenium, and liver mass was significantly higher in quail fed 22 μg Se/g than in control quail. Unlike other species studied, accumulation of selenium in blood did not plateau but continued to increase until the study ended.
机译:研究了对硒毒性敏感的物种Coturnix鹌鹑中硒的积累。鹌鹑饲喂含硒硒L-蛋氨酸的0.7μg/ g(对照),12μg/ g(低硒)和22μg/ g(高硒)的饲料,为期4周。在四周结束时,治疗组中的血硒与饮食呈显着正相关,血液中的硒约为饮食浓度的两倍,而肝脏中的硒约为饮食浓度的三倍。与其他研究中类似浓度的美国蛋和野鸭饲喂硒代蛋氨酸相比,低硒组的鹌鹑在同一时期内积累的硒水平更高。在整个研究中,各组之间的食物消耗相似。对照组和低硒组的体重占初始体重的百分比相似(102%),而高硒组则较低(97%)。肝脏质量(占初始体重的百分比)显示出对饮食硒的剂量依赖性正响应,而饲喂22μgSe / g的鹌鹑的肝脏质量显着高于对照鹌鹑。与其他研究物种不同,硒在血液中的蓄积并未稳定,而是持续增加,直到研究结束。

著录项

  • 来源
    《Environmental toxicology and chemistry》 |2010年第10期|p.2220-2224|共5页
  • 作者单位

    CH2M HILL, 2485 Natomas Park Drive, Suite 600, Sacramento, California 95833, USA;

    rnDepartment of Animal Science, University of California, Davis, California 95616, USA;

    rnDepartment of Animal Science, University of California, Davis, California 95616, USA;

    rnDepartment of Animal Science, University of California, Davis, California 95616, USA;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    bioaccumulation; coturnix quail; selenium; selenomethionine;

    机译:生物蓄积鹌鹑鹌鹑;硒;硒代蛋氨酸;
  • 入库时间 2022-08-17 13:32:24

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