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  • Title: Histopathologic changes in laboratory animals resulting from various methods of euthanasia.
    Author: Feldman DB, Gupta BN.
    Journal: Lab Anim Sci; 1976 Apr; 26(2 Pt l):218-21. PubMed ID: 1271740.
    Abstract:
    The histopathologic changes caused by various methods of euthanosia were studied in rats, mice, guinea pigs, and rabbits. Lesions resulting from a particular methods of euthanasia were consistent from species to species. Each method studied affected the lungs to some degree, ranging from mild congestion of alveolar capillaries to marked intramural edema of pulmonary arteries and alteration of vascular permeability. Euthanasia of experimental animals by overexposure to CO2, or ip injection of concentrated sodium pentobarbital seemed most suitable for pulmonary studies. Decapitation (mice, rats, guinea pigs), cervical dislocation (mice), CO2, and intracardial injection of sodium pentobarbital were more suitable for examination of abdominal viscera.
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