This paper describes the results of the artificial nursing of 8 infant cynomolgus monkeys (Macaca fascicularis) weighing 230-350 g at birth. The infants were separated from their mothers just after or 2 days after birth and were kept in a specially deviced small cage (Photo 1 & 2) . They were fed on 6.4-16.600 solution of a commercially available powdered milk for the human baby. Apple juice also was given to them from the 3rd or 4th week on. In about the 6th week, the infants received solid foods such as small pieces of apple, biscuit and monkey chow. The main part of the dietary regimen was changed to the solid diet arround the 12th week. The volume of milk taken was recorded every day, and the daily intake of three major nutrients was estimated with the milk intake (Fig. 1, 2, 5, 6) . The body weights were between 600 and 750 g on the day of weaning, that is, at about 12 weeks of age, except No. 2 infant showing a slight growth retardation (Fig. 4) . Their physical growth can be judged as normal as that of breast-nursed infants of the same species from our laboratory. On the basis of these results, an example of the artificial feeding schedule for the infant cynomolgus monkeys was introduced (Fig. 7) .

View full abstract