Reproduction, infant survival and productivity of a colony of common marmosets (Callithrix jacchus jacchus)

Abstract
Starting with 4 pairs of marmosets, 204 young were successfully reared during 6 years. They were kept in family groups of 2-10. Litter size varied from 1-4; singletons (2%), twins (35%), triplets (55%), and quadruplets (8%). The mean annual increase of weaned young was 3·24 per pair.