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International Journal of Zoology and Applied Biosciences Research Article

Variation in season-wise performance of muga silkworm (Antheraea assamensis Helfer) aimed to climate change trends: A descriptive study

Suraksha Chanotra, R Ravi Kumara, Dharavath Saicharan, Lopa Mudra Guha and Hridya Hemachandran

Year : 2024 | Volume: 9 | Issue: 6 | Pages: 78-83

doi: https://doi.org/10.55126/ijzab.2024.v09.i06.012

Received on: 14/11/2024

Revised on: 26/11/2024

Accepted on: 16/12/2024

Published on: 30/12/2024

  • Suraksha Chanotra, R Ravi Kumara, Dharavath Saicharan, Lopa Mudra Guha and Hridya Hemachandran( 2024).

    Variation in season-wise performance of muga silkworm (Antheraea assamensis Helfer) aimed to climate change trends: A descriptive study

    . International Journal of Zoology and Applied Biosciences, 9( 6), 78-83.

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Abstract

North-East India enjoys the pride to be the largest contributor of muga silk in India’s total silk production. Muga silk is produced by wild sericigenous caterpillar Antheraea assamensis Helfer belonging to family Sturnidae. Muga silkworm is poikilothermic in nature and responds well to the biotic and abiotic factors around it.In the current investigation, an attempt was made to summarize the climate change pattern and its impact on muga rearing performance under Kokrajhar district of Assam, India for the period of 2020 to 2024. The study revealed hatching percentage to be moderately affected with an average of 76.93% despite of the seasonal variations. Maximum and minimum values for cocoon weight was recorded as 7.20g and 4.71g and 2.81g and 4.69g and low values of shell weight and Shell ratio percentage (SR%) with an average of 0.26g and 0.35g and 0.26 and 0.49% resp. for male and female cocoons. Maximum Effective Rate of Rearing (ERR%) was recorded in Baisakhi season as 58% and minimum in Late Bhodia as 11.03% with an average of 30.31% with highest percentage of disease incidence (PDI) value for flacherie infestation in Bhodia as 98.9%. For the studied period temp. and relative humidity (RH) pattern fluctuated to be as high as 28-39°C in Baisakhi-2021 (April-June) season and as low as 14-15°C for Aghenua-2020 (Nov-Dec) with max. RH as 89-99% in Bhodia-2021 (Sept-Oct) and min. 32-45% in Late Jarua-2020 (Feb-April). On the basis of current study, it has been concluded that, Baisakhi, Late Bhodia and Aghenua are the most appropriate seasons to conduct rearing in Kokrajhar District provided the availability of optimum temperature and humidity. The study could be further extended to make season wise crop calendar for muga rearing suitable for different agro-climatic zones of Assam and other non-traditional states.

Keywords

Muga, Season, Crop, Seed, Yield, Climate, Performance.

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