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  • Title: Effect of medetomidine-butorphanol-ketamine anaesthesia and atipamezole on heart and respiratory rate and cloacal temperature of domestic pigeons.
    Author: Atalan G, Uzun M, Demirkan I, Yildiz S, Cenesiz M.
    Journal: J Vet Med A Physiol Pathol Clin Med; 2002 Aug; 49(6):281-5. PubMed ID: 12227468.
    Abstract:
    The purpose of this study was to evaluate the sedative-anaesthetic effects of a combination of medetomidine (M, 50 microg per pigeon), butorphanol (B, 50 microg per pigeon) and ketamine (K, 25 mg per pigeon) in domestic pigeons. Eight domestic pigeons (four male and four female, 8-15 months old) were used. The combination of Medetomidine and butorphanol injectable solutions were used to produce sedation. Ten minutes after M + B administration, K was injected. The anaesthetic effects of the drugs were reversed by administration of Atipamazole (AT) at 60 min after K administration. All drugs were injected into the pectoral muscles. The sedative-anaesthetic effects of the M + B-K combination and, alterations in respiratory rate (RR), heart rate (HR), electrocardiographic (ECG) findings and cloacal temperature (CT) were investigated before and 10 min after pre-medication with M + B, at 5, 15, 30, 45 and 60 min during the onset of K anaesthesia and at 1, 5, 10, 20, 30 and 60 min following the administration of AT. The HR and RR of pigeons decreased within 10 min following M + B administration and remained lower until 1st and 5 min of AT injection, respectively. In ECG, no significant alterations in P, Q, R and S-values were observed, however, arhythmia was recorded for three pigeons, which returned to normal values following AT administration throughout the measurement. Cloacal temperature decreased gradually during the anaesthesia from 41.0 to 32.7 degrees C. The drug combination used in this study produced a satisfactory general anaesthesia for seven of the eight pigeons. All pigeons were unconscious within 5 min after K administration as indicated by disappearance of the palpebral and corneal reflexes and lack of reaction to the pain stimuli during the study. The effect of AT administration was observed within 10 min as all pigeons responded partly against stimuli and all reflexes. It is concluded that M + B-K anaesthesia in pigeons is a safe and reliable anaesthetic protocol for surgery.
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