Turkish Journal of Veterinary and Animal Sciences

Yazarlar: Metehan UZUN, Sedat YILDIZ

Konular:-

Anahtar Kelimeler:Ketamine,Medetomidine,Anaesthesia,Physiological changes,Pigeon

Özet: The applications of medetomidine (M) as a pre-anaesthetic and ketamine (K) as an anaesthetic agent were investigated in seven domestic pigeons in terms of the degree of anaesthesia (DA) and alterations in physiological parameters. An intramuscular (IM) injection of M (200 µg/kg) was followed by administration of K (120 mg/kg, IM) after 10 min. Body temperature (BT), respiratory rate (RR), heart rate (HR), DA, and electrocardiogram (ECG) findings were determined before (0 min) and 10 min after the application of M, and 5, 15, 30, 45 and 60 min after the administration of K. All pigeons had 4th degree anaesthesia and a significant decrease (p < 0.01) in HR was observed starting from the 10th min and lasting until the end of the anaeasthesia period. RR was significantly decreased at the 10th min of pre-anaesthesia (p < 0.01). Following K application, RR increased at the 5th min and stayed high until the 30th min, but decreased again afterwards. HR decreased dramatically during pre-anaesthesia (p < 0.01) and gradually during anaesthesia (p < 0.05). An obvious prolongation of P-R and R-R intervals was the only ECG finding. It was observed that BT constantly decreased during pre-anaesthesia and anaesthesia (p < 0.05 or p < 0.001). In conclusion, it was found that M + K combination anaesthesia caused alterations in the physiological parameters in pigeons, but they did not possess a life threatening effect. The application of M + K at these dose levels might produce a reliable and deep anaesthesia lasting 15 to 60 min.

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