文章摘要
蔺玉华.铬对鲤生长、血清离子和某些激素分泌活动的影响[J].水产学报,2005,29(6):
铬对鲤生长、血清离子和某些激素分泌活动的影响
Effect of Cr6 on growth, serem electrolytes and some hormone activities in Cyprinus carpio
投稿时间:2014-03-09  修订日期:2014-03-09
DOI:
中文关键词: 6价铬 鲤 血清离子 激素
英文关键词: Cr^6+ Cyprinus carpio serum electrolytes hormone
基金项目:农业部行业标准制定和修订项目
作者单位地址
蔺玉华 中国水产科学研究院黑龙江水产研究所 中国水产科学研究院黑龙江水产研究所
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中文摘要:
      将鲤(6月龄)饲养在Cr6 浓度系列:0、0.12、0.67、1.22、3.66、10.97和32.91 mg?L-1的水体中40 d,T0.12~T3.66组的绝对增重率和绝对增长率较对照鱼有增重的趋势;铬对鲤血清渗透压和血清离子的影响:自染毒T0.67组引起血清渗透压升高,血清Na 和Ca2 浓度较对照鱼也有明显提高;血清K 浓度有升高的趋势,仅T10.97组有显著差异;个别染毒组Mg2 浓度降低;铬对多数染毒鱼的Cl-浓度影响不明显.铬对血清激素水平影响:T3.66组的T3含量、T10.93组的T4含量以及T0.67组以上的高剂量染毒组的皮质醇含量均较对照鱼明显升高.多数铬处理组鲤肌肉的粗蛋白和粗脂肪含量较对照鱼降低.鱼体铬蓄积量大小依次为:肌肉<鳃<肝<肠.肌肉中铬含量超标(3.00 mg?kg-1)为T32.91组鱼,肠中铬超标(2.24 mg?kg-1)为T0.67组鱼.
英文摘要:
      The Cyprinus carpio (6 months old) were exposed to water bodies with different concentration of Cr^6+ ranged from 0,0.12, 0.67,1.22, 3.66, 10.97 and 32.91 mg?L^-1, respectively. An increase in growth rote (AGR and ALR) was observed in T0.12 to T3.66 Cr^6+ -treated groups. The results showed that Cr^6+ also affected serum osmolarity and serum electrolytes. The serum osmolality and Na^+ and Ca^2+ concentration were significantly higher in the Cr^6+ - treared groups than in the controls. Increase of serum K^+ was also observed, but it was only significant in T10.97 group. The concentrations of serum Mg^2+ from a few Cr^6+ treated groups were decreased. No obvious serum Cl^- concentration changes were observed. Cr^6+ affected serum hormonal responses. The T3 content in T3.66 group and T4 content in T10.93 group, and the cortisol levels from all the groups treated with Cr^6+ concentration 0.67 and higher were significantly increased. The nutritional contents (crude protein and crude fat) in fish from most of the Cr^6+ treated groups were lower than the control. The concentration of Cr in a fish body treated with Cr^6+ had a distribution pattern: muscle 〈 gill 〈 liver 〈 Intestines. The Cr concentration in fish muscle from group T32 91 (3.00 mg?kg^-1) and the Cr concentration in intestines from group T0.67(2.24 mg?kg^-1 ) and from all the groups treated with higher Cr^6+ exceeded the national maximum limit for food safety.
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