Ozotoceros bezoarticus is a seasonal breeder. Gestation is slightly more than 7 months. Females are capable of giving birth at 10-month intervals. Pregnant females can be distinguished visibly about 3 months before parturition and the udder is evident 1 to 2 weeks before birth. The majority of fawns born in the spring (September to November), although births have been recorded in almost all months. The pampas deer virtually always bears a single fawn.
In captivity, the first discernible sexual behavior in males occurs when they are about 1 year of age; adult males are capable of mating year-round. Sexual maturity in captive females may occur at 12 months.
Jackson (1985; 1987); Langguth and Jackson (1980).
Average birth mass: 2100 g.
Average gestation period: 213 days.
Average number of offspring: 1.
Average age at sexual or reproductive maturity (female)
Sex: female: 365 days.