超低温冷冻对长鳍篮子鱼精子中几种酶活性的影响

研究超低温冷冻保存(-196℃)对长鳍篮子鱼(Siganus canaliculatus)精子内总ATP酶、肌酸激酶(CK)、琥珀酸脱氢酶(SDH)、乳酸脱氢酶(LDH),超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷胱甘肽还原酶(GR),谷胱甘肽过氧化物酶(GSH-PX)等酶活性的影响.运用试剂盒分别测定了冷冻前后长鳍篮子鱼精子内几种酶活性的变化.结果表明,经过超低温冷冻保存后,精子内GR活性显著升高(P<0.05),酶活性从冻前的163.54 U/L±17.14 U/L上升到239.33 U/L±22.24U/L;其余7种酶的活性均显著下降(P<0.05),超低温冷冻对长鳍篮子鱼精子内不同酶活性和精子活力均有较大影响.

Effects of cryopreservation on enzyme activity of Siganus canaliculatus spermatozoa

This paper studied the effects of cryopreservation(-196℃) on the enzyme activity(total ATP,CK,SDH,LDH,SOD, CAT, GSH-PX and GR) in Siganus canaliculatus spermatozoa. The changes of enzyme activity were analysed in the spermatozoa using the reagent box respectively. The results showed the activities of spermatozoa dropped after cryopreservation, GR activities increased significantly(P<0.05), the activities added from 163.54 U/L±17.14 U/L to 239.33 U/L±22.24 U/L, other seven kinds of enzyme activities descended significantly(P<0.05).The activities of total ATP, CK, SDH dropped from 9.20 U/mL±0.28 U/mL,25.59 U/mL±0.13 U/mL and 18.33 U/mL±2.52 U/mL to 4.18 U/mL±0.81 U/mL,17.87 U/mL±0.56 U/mL and 9.33 U/mL±1.53 U/mL respectively,the activities of LDH, SOD and CAT declined from 14 828.66 U/L±866.56 U/L,421.68 U/mL±12.66 U/mL and 121.17 U/mL±15.04 U/mL to 11324.33 U/L±689.58 U/L,199.56 U/ml±50.55 U/ml and 74.60 U/mL±12.70 U/mL canaliculatus.