Abstract：
:In the present study, an attempt has been made to study the growth, reproduction and life cycle of the earthworm, Perionyx ceylanensis Mich. in cowdung for the period of 340 days. Results showed that the overall mean growth rate was 1.79, 1.57 and 1.34 mg/worm/day respectively for the worms cultured singly, in batches of four and eight. Cocoon production rate was found between 0.85 and 0.94 cocoons/worm/day and the hatching success between 74.67% and 82.67%. The majority of the cocoons (95.16-96.77%) hatched only one hatchling. Worms raised singly also produced viable cocoons indicating that P. ceylanensis reproduce parthenogenetically. The life cycle of the worms cultured singly was +/-57 days and it was +/-50 days for the worms cultured in batches of four and eight. There is a vast scope to utilize P. ceylanensis for vermiculture practices due to short period of life cycle.
journal_name
Bioresour Technoljournal_title
Bioresource technologyauthors
Karmegam N,Daniel Tdoi
10.1016/j.biortech.2009.05.004subject
Has Abstractpub_date
2009-10-01 00:00:00pages
4790-6issue
20eissn
0960-8524issn
1873-2976pii
S0960-8524(09)00515-Xjournal_volume
100pub_type
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