亚硝酸盐对草鱼红细胞渗透脆性的影响

研究不同浓度亚硝酸盐(0.5、1.0、2.0 mg/L)及不同处理时间(24、72、120、168、264 h)对草鱼(Ctenopharyngodon idellus)红细胞渗透脆性的影响.结果表明:与对照组比较,实验各组草鱼红细胞脆性最小抵抗值、最大抵抗值极显著升高(P＜0.01); 2.0 mg/L浓度组红细胞渗...

The influence of nitrite on erythrocyte osmotic fragility of grass carp(Ctenopharyngodon idellus)

The influence of nitrite on erythrocyte osmotic fragility(EOF) of grass carp was studied at different concentration of Nitrite(0,0.5,1.0,2.0 mg/L) and different contamination time(24,72,120,168,264 h).The results showed that the maximum and minimum resistance value of EOF increased significantly compared to control group(P<0.01),EOF of 2.0 mg/L group had a maximal increased amplitude,and the maximum and minimum resistance value of EOF had significant difference compared to 0.5 mg/L and 1.0 mg/L group(P<0.01).EOF increased extremely with the prolongation of experimental time within 120 h,but it increased slowly after 120 h.The maximum and minimum resistance value had extreme difference between 120 h and 72 h,72 h and 24 h,(P<0.01).The minimum resistance value had no significant difference between 120 h and 168 h,168 h and 264 h,(P>0.05).The maximum resistance value had on significant difference between 264 h and 168 h(P>0.05).In conclusion,nitrite may lead to the increase of erythrocyte osmotic fragility of grass carp,and the effect had the relationship of concentration-effect and time-effect.