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Effect of halothane, isoflurane, and pentobarbital anesthesia on myocardial irritability in chickens.
1990
Greenlees K.J. | Clutton R.E. | Larsen C.T. | Eyre P.
The relative myocardial irritant properties of halothane, isoflurane, and pentobarbital were evaluated in chickens. Sixteen adult male broiler chickens were randomly assigned to 1 of 3 groups: group-1 chickens were anesthetized with pentobarbital (30 mg/kg, IV), group-2 chickens were anesthetized with halothane (end tidal halothane 1.2%), and group-3 chickens were anesthetized with isoflurane (end tidal isoflurane 2.1%). Birds in any 2 of the 3 treatment groups were tested on any 1 day. Local anesthesia was induced, and blood pressure, heart rate, ECG, and blood gas variables were measured before general anesthesia was induced. Positive-pressure ventilation with an inspired O2 fraction > 0.95 was adjusted to result in an end tidal CO2 concentration that reflected a PaCO2 similar to that obtained prior to anesthesia and ventilation. All measurements were repeated. The threshold for ventricular fibrillation in response to electrical stimulation of the heart was then determined for all birds. Effects of anesthesia on hemodynamic and blood gas variables were similar in all 3 groups. Compared with halothane or pentobarbital, isoflurane anesthesia resulted in a significantly (P < 0.05) lower threshold for electrical fibrillation of the heart.
Afficher plus [+] Moins [-]Pathogenicity, hemagglutinability and the effect of physicochemical agents on virus of rabbit hemorrhagic disease.
1990
Yoon I.J. | Jeon Y.S.
Immunohistochemical identification of Newcastle disease virus with indirect immunoperoxidase technique.
1990
Nho W.G. | Sur J.H. | Kim S.B.
Characterization of two monoclonal antibodies which recognize different subpopulations of chicken T lymphocytes
1990
Kondo, T. (Hokkaido Univ., Sapporo (Japan). Faculty of Veterinary Medicine) | Hattori, M. | Kodama, H. | Onuma, M. | Mikami, T.
Biochemical properties and cultural characteristics of Escherichia coli isolated from chickens
1990
Woo, Y.K. | Kim, K.S. (Rural Development Administration, Anyang (Korea Republic). Veterinary Research Institute) | Kim, B.H. (Kyungpook National University, Taegu (Korea Republic). College of Veterinary Medicine)
Studies on the combined inactivated oil emulsion vaccine of newcastle disease and avian infectious bronchitis in chickens
1990
Jeon, Y.S. | Kim, S.J. | Seo, I.S. (Seoul National University, Suwon (Korea Republic). College of Veterinary Medicine)
Sperm storage of the utero-vaginal glands in domestic hens
1990
Ryoo, J.D. (National Animal Quarantine Station, Anyang (Korea Republic)) | Kwak, S.D. (Gyeongsang National University, Chinju (Korea Republic). Department of Veterinary Medicine)
