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KMID : 0894520090130010043
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Development & Reproduction
2009 Volume.13 No. 1 p.43 ~ p.49
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Effects of the Vibration Stress on Cortisol and Hematological Characteristics in Soft-shelled Turtle, Pelodiscus sinensis
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Hur Jun-Wook
Lee Jeong-Yeol
Chang Young-Jin
Bai Sung-Chul
Park In-Seok
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Abstract
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We examined the effects of the vibration stress on cortisol secretion and hematological characteristics in soft-shelled turtle, Pelodiscus sinensis. For the stressed group vibration of 45～78 ㏈(V) from electric vibrator applied for 30 min with 2-h intervals during daytime (08:00∼18:00) up to 28 days. Using the blood samples collected from ten turtles held once a week after vibration stress, we measured hematocrit, hemoglobin, red blood cells, cortisol, glucose, lactic acid, osmolality, Na?, K?, Cl?, aspartate aminotransferase (AST), and alanine aminotransferase (ALT). The results have showed that P. sinensis received vibration stress exhibit the ‘typical’ stress-induced physiological responses (cortisol, glucose, lactic acid, osmolality, ions, hematocrit and hemoglobin) induced by vibration stress. Our data suggested that chronic vibration stress caused substantial stress in the animal, and in particular, the persisting elevated levels of AST and ALT would be highly correlated with the adverse effects of the stress. The high hematological characteristics during entire experimental period showed that the P. sinensis could not adapt to chronic stimuli provoked by vibration stress.
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KEYWORD
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Soft-shelled turtle, Pelodiscus sinensis, Vibration stress, Hematological characteristic, Cortisol
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