Reference intervals for hematologic and biochemical values in cynomolgus monkeys from different breeding populations in China

The cynomolgus monkey is the most widely used models in non-clinical studies. As factors like age, gender, and breeding province may affect hematologic and serum biochemical parameters, it is important to establish base values of these parameters by these three factors and to determine the effects of these factors on the parameters. In total, 1794 cynomolgus monkeys (Male: 901, Female: 893) were selected. A total of 24 hematologic and 21 serum biochemical parameters were measured, and the effects of age, gender, and breeding province were analyzed. Base values for hematologic and serum biochemical parameters were established by age, gender, and breeding province. A significant neutrophil percent, alkaline phosphatase, and creatinine differences were observed between different ages; a significant alkaline phosphatase, gamma glutamyl transpeptidase, and creatinine differences were observed between males and females; a significant lymphocyte percent, neutrophil percent, reticulocyte count, alkaline phosphatase, gamma glutamyl transpeptidase, and creatinine differences were observed between different breeding provinces. The results emphasize the importance of improving base values by age, gender, and breeding provinces. There was no statistically significant difference in most of the above parameters, and cynomolgus monkeys from different breeding provinces can be used in the same study.