Summary
Although various authors have contributed to our knowledge of the biology of Eudrilus eugeniae some basic facts about the life cycle and reproduction are still not fully documented. Quantitative observations were made of the cocoons at 25 °C in different substrates. The incubation period for 166 cocoons was 16.89 days, based on cocoons produced by worms between the ages of 70 and 100 days. These cocoons produced a mean 2.12 hatchlings per cocoon after incubation in cattle manure, moist filter paper and distilled water. A smaller batch of cocoons incubated in cattle manure produced a mean of 2.7 hatchlings per cocoon. The hatching success of the cocoons was 84% in cattle manure, 50% in distilled water, and 48% on moist filter paper. The reproductive capabilities of E. eugeniae and Eisenia fetida were compared.
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Reinecke, A.J., Viljoen, S.A. Reproduction of the African earthworm, Eudrilus eugeniae (Oligochaeta) — cocoons. Biol Fert Soils 7, 23–27 (1988). https://doi.org/10.1007/BF00260727
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DOI: https://doi.org/10.1007/BF00260727