Abstract
Cardiorespiratory effects were assessed during ketamine/xylazine premedication followed by emulsified isoflurane anaesthesia in swine undergoing experimental embryo transplantation. Ketamine (10 mg/kg) and xylazine (3.5 mg/kg) were premedicated intravenously, followed by continuous administration of intravenous emulsified isoflurane (2.8 ml/kg/h). Cardiorespiratory parameters, including heart rate, respiratory rate, mean arterial blood pressure, arterial oxygen saturation, and rectal temperature, were recorded in sows undergoing surgical embryo transplantation. Ketamine/xylazine premedication resulted in anaesthetic induction and lateral recumbency within 1 minute without any adverse effects. The physiological changes observed after drug administration remained within biologically acceptable limits. In conclusion, the combination of ketamine/xylazine provided anaesthetic induction, muscle relaxation, and analgesia sufficient for emulsified isoflurane intravenous anaesthesia. There were no adverse events in the experimental animals. This finding supports the use of emulsified isoflurane following ketamine/xylazine premedication in pigs.
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