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Journal of Entomology and Zoology Studies

 

Volume 2, Issue 1

 

Dynamics of total haemocyte count (THC) in popular bivoltine and multivoltine breeds of mulberry silkworm Bombyx mori L., during the progressive infection of newly isolated microsporidian NIK-5hm

Author(s): A. R. Narasimha Nayaka* S.D.Sharma

Abstract: The silkworm, Bombyx mori L. is a delicate and sensitive lepidopteron insect, which has been domesticated for silk production since time immemorial. Due to continuous domestication, silkworm becomes susceptible to various diseases. During the course of infection the cellular defense mechanism in silkworm is mediated by different types of haemocytes. In the present study, popular bivoltine and multivoltine breeds were selected to carry out experiment to understand the day to day changes in total haemocyte count (THC) in silkworm larvae inoculated with newly isolated microsporidian NIK-5hm. During the course of progressive infection of NIK-5hm, significant enhancement of total haemocyte count (THC) was observed till eighth day. Later gradual reduction of the haemocyte population was noticed in the inoculated batches of both the breeds.

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