|
KMID : 0894520180220020165
|
|
Development & Reproduction
2018 Volume.22 No. 2 p.165 ~ p.174
|
|
|
Pysiological Responses of Diploid and Triploid Far Eastern Catfish, Silurus asotus to Water Temperature Stress
|
|
Lee Hyo-Bin
Kim Dong-Soo
Gil Hyun-Woo
Park In-Seok
|
|
|
Abstract
|
|
|
|
The aim of study is to contribute to this knowledge-base by investigating the respiratory function, the metabolic rate and the difference of physiological responses un-der low water temperature (20℃→15℃) stress be-tween diploid and triploid far eastern catfish, Silurus asotus. During the 48 hrs of water temperature stress exposure time, the respiratory frequencies, CO2 and NH4+ concentrations of diploid had higher values than those of triploid (p<0.05). However, pH of triploid was higher than those of diploid (p<0.05), and oxygen consumption rate was not different between diploid and triploid (p>0.05). The level of plasma cortisol and plasma glucose of triploid was lower than those of the diploid (p<0.05). However, in case of lactic acid, there were not significant between triploid and diploid (p>0.05). These results suggest that diploid was more sensitive for low water temperature stress response than triploid in this species.
|
|
|
KEYWORD
|
|
|
Diploid, Far eastern catfish, Physiological response, Respiratory function, Temperature stress, Triploid
|
|
|
FullTexts / Linksout information
|
|
|
|
|
|
Listed journal information
|
|
|
|