Blood glucose levels in rhesus monkeys (Macaca mulatta) and cynomolgus macaques (Macaca fascicularis) under moderate stress and after recovery.

We evaluated normal blood glucose levels in two species of monkeys, namely rhesus monkeys (Macaca mulatta) and cynomolgus macaques (Macaca fascicularis) kept in the Breeding Center of the Institute of Medical Primatology. The animals were either under moderate stress due to catching or after recovery of defensive and orienting reactions by habituation to the blood sampling. Based on these data, seasonal, gender- and age-dependent variations in glucose levels were found. Glucose levels in rhesus monkeys accustomed to blood sampling procedures were shown to be substantially lower compared with those in non-adapted genderand age-matched animals.