Cocoons

Cocoons

Earthworms are hermaphrodite, which means each worm is having both male and female characteristics, even then they need two individual to mate in order to reproduce. During mating, any two adult worms can join together to fertilize each other's egg. Fertilized eggs contains in a mucous tube secreted by the clitellum that slips over its head or tail and then into the soil, as an egg case or cocoon. These cocoons are about the size of a matchstick head and changes color as the baby worm develops, starting out as milky white to greenish yellow to pale yellow to reddish brown at maturity when the hatchlings are ready to emerge. Number of cocoons and hatchlings period varies for each species and depends upon the environmental conditions.

We at our center also sale and supply earthworm cocoons. During odd or hot climatic conditions when supply of earthworms is not possible to far away places, supply of cocoons can be done because transportation or supply of cocoons is easy and convenient compare to transportation or supply of earthworms.

Culture Medium

Growth parameters of different earthworm species

Species of earthworm Eisenia fetida Eudrilus euginae Perionyx excavatus
Biomass production (g/wk) 0.68 5.76 6.3
Average reproduction rate (worm/week) 10.4 6.7 29.4
Egg maturation period (days) 25-49 12-43 44-71
Cocoon hatchlings (days) 32-73 13-27 16-21
Period to attain maturity (days) 53-76 32-95 28-56
Mean mature weight (gms) 0.55 4.3 1.3