人工养殖长江鲟后备亲本血液生化指标研究OA

To explore the physiological status of Yangtze sturgeon(Acipenser dabryanus)under artificial environ-ment,the blood of 8 reserve parents of Yangtze sturgeon(4 males and 4 females)were collected to measure 22 serum biochemical indexes such as serum hormone,serum antioxidant index,serum immune index,serum ion and serum energy metabolism enzyme,and the differences between male and female were compared and evaluated.The results showed that among the 22 blood biochemical indexes,the variation coefficient of 6 indexes such as cortisol was less than 20%,the variation coefficient of 9 indexes such as growth hormone was 20%-50%,and the variation coefficient of 4 indexes such as thyrotropin was 50%-100%.The minimum and maximum value of testosterone was less than 0.03 ng/mL and more than 15.00 ng/mL respectively,the value of prolactin was less than 1.00 μIU/mL,and the minimum and maximum value of thyroxine was 0.01 nmol/L and 10.65 nmol/L respectively.The significant difference between females and males was only detected in serum K+ concentration(P<0.05).The results showed that there were great differences in most blood biochemical indexes among different individuals of cultured Yangtze sturgeon,and the K+ concentration could be considered as the index for sex determination of the captive Yangtze sturgeon.