Follow
International Journal of Current Microbiology and Applied Sciences (IJCMAS)
IJCMAS is now DOI (CrossRef) registered Research Journal. The DOIs are assigned to all published IJCMAS Articles.
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00 For more details click here
National Academy of Agricultural Sciences (NAAS) : NAAS Score: *5.38 (2019) [Effective from January 1, 2019]For more details click here

Login as a Reviewer

Indexed in



National Academy of Agricultural Sciences (NAAS)
NAAS Score: *5.38 (2019)
[Effective from January 1, 2019]
For more details click here

ICV 2017: 100.00
Index Copernicus ICI Journals Master List 2017 - IJCMAS--ICV 2017: 100.00
For more details click here

See Guidelines to Authors
Current Issues

Original Research Articles

PRINT ISSN : 2319-7692
Online ISSN : 2319-7706
Issues : 12 per year
Publisher : Excellent Publishers
Email : editorijcmas@gmail.com / submit@ijcmas.com
Editor-in-chief: Dr.M.Prakash
Index Copernicus ICV 2017: 100.00
NAAS RATING 2018: 5.38

Int.J.Curr.Microbiol.App.Sci.2019.8(9): 1182-1187
DOI: https://doi.org/10.20546/ijcmas.2019.809.135


Studies on Egg Laying Behaviuor and Fecundity under Different Stress Conditions in Tropical Tasar Silk Moth
P. Sudhakara Rao1*, K. M. Vijaya Kumari1, B. Sailaja1, G. V. Vishaka2, S. Vidyunmala1 and R. K. Mishra3
1Silkworm Seed Technology Laboratory, Central Silk Board, Kodathi, Bengaluru-560035, India
2Basic Tasar Silkworm Seed Organization, Bilaspur-495001, India
3National Silkworm Seed Organization, Central Silk Board, Bengaluru-560068, India
*Corresponding author
Abstract:

Tasar silkworm (Antheraea mylitta Drury) rearing and cocoon production are mainlycarried out by Tribal people of Central India and some parts of Odisha and Telangana states. Lack of Tasar silkworm seed production and preservationtechnology is creating difficulties in timely supply of adequate quantity of seed to the farmers and others stake holders..High temperature above 28ºC and less relative humidity than 50% are not suitable for the oviposition and hatching of eggs. In Tasar silk moth, egg retention was also more even after 72 h of oviposition in natural conditions.In the present investigation, while providing optimum temperature (27-28ºC) and humidity (75-80%) in the egg laying room, egg laying was carried out in bivoltine and trivoltine broods under different stress conditions. The results indicated that in bivoltines (per5 moths), in T1 where antenna and wings were amputated, the number of eggs recorded were 1306, in T2 (legs and wings cut) it were 902 and in T3 (antenna, wings & legs cut), the number of laid eggs were 1154 when compared to 907 in Normal conditions (T0) for 5 months. Egg retention results indicated that in T1,itwas 200 amounting to 13.28% and fecundity was 261. In T2,it was 145 amounting to 13.85 % and fecundity was 180. In T3, with Antenna, legs & wings amputation egg retention was 135 amounting to 10.47 % and fecundity of 231.In case of normal moths (T0), egg retention was 124 amounting to 12.03 % with a fecundity of 181. In case of Trivoltines (5 moths) also same pattern was observed. The mentioned stress conditions are useful while grainage operations for getting more fecundity.


Keywords: Tasar silkworm, Antheraea mylitta, fecundity, egg production and stress conditions
Download this article as Download

How to cite this article:

Sudhakara Rao, P., K. M. Vijaya Kumari, B. Sailaja, G. V. Vishaka, S. Vidyunmala and Mishra, R. K. 2019. Studies on Egg Laying Behaviuor and Fecundity under Different Stress Conditions in Tropical Tasar Silk Moth.Int.J.Curr.Microbiol.App.Sci. 8(9): 1182-1187. doi: https://doi.org/10.20546/ijcmas.2019.809.135