Abstract: This study was undertaken to investigate the effects of acute high-temperature stress on physiological and biochemical responses of Bighead carp (Aristichthys nobilis). For this purpose, we select similar size of fish with a mean weight of 250 ± 66 g and randomly were assigned into 6 tanks (300 liter/tank) with three replicates at a stocking density of 9 fish per tank, fed with a commercial diet. Fish were reared at 28 °C for 10-weeks, then first sample was collected after 24 hr thereafter a subsample of 36 fish from the two groups were exposed gradually every 3h to 38 °C for 24 hr and samples of blood collected at each step. The results showed that the effect of acute high-temperatures lead to stress the fish thereby affected the physiological and biochemical responses. Increased temperature leads to decrease the levels of plasma cholesterol and triglyceride while alanine aminotransferase, alkalin phosphatase and glucose activities were increased significantly (P<0.05) under acute high-temperature stress. The overall results of the present studies indicate that Bighead carp are highly susceptible to changes in environmental temperature and rapid intervention is required in response to temperature disruptions during aquaculture. This study expected to help aquaculturists monitor tolerable temperature and time range of exposure to stress. Aquaculturists will have to be on guard regulating toxic elements in fish culture emanating from feed additives, pollutants and hormones.
Keywords: Bighead carp (Aristichthys nobilis), biochemical parameters, stress response, temperature.
Title: Physiological and Biochemical Responses of Bighead Carp (Aristichthys Nobilis) Due To the Effects of Acute High-Temperature Stress
Author: Emmanuel Rufino Aboka, Zhu Jian, Sun Shengming, Zhang Wuxiao, Yu Han, Su Yan Li, Yu Jiahui, Zhu Jiabin
International Journal of Life Sciences Research
ISSN 2348-313X (Print), ISSN 2348-3148 (online)
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