Effects of stress and food deprivation on catfish, Heteropneustes fossilis (Bloch).
No significant changes in plasma cortisol and plasma osmolarity (the indicators of primary and secondary response respectively) were observed when the blood samples were obtained from unanaesthetized, anaesthetized and stressed catfish, H. fossilis. The results suggest that the catfish is fairly hardy and not easily susceptible to stress by routine laboratory handling. The sustained plasma glucose levels and decreased liver and muscle glycogen concentrations during cessation of feeding of the catfish suggest that during period of food deprivation, it draws its energy through glycogenolysis. Hence, in any study dealing with carbohydrate metabolism, the catfish needs to be fed during acclimation and experimental periods.
Sherwani
F A
FA
Department of Zoology, Aligarh Muslim University, Aligarh 202 002, India.
Parwez
I
I
D000818:Animals; D001786:Blood Glucose / Q000378:metabolism; D002397:Catfishes / Q000097:blood* / Q000378:metabolism; D005508:Food Deprivation / Q000502:physiology; D006854:Hydrocortisone / Q000097:blood; D008112:Liver Glycogen / Q000378:metabolism; D009752:Nutritional Status; D009994:Osmolar Concentration; D013312:Stress, Physiological / Q000097:blood
D001786:Blood Glucose; D008112:Liver Glycogen; D006854:Hydrocortisone