Economic Cocoon Parameters of Barpat (Bombyx mori) Silkworm on Different Mountages
Th. Aruna Singha*
Dept. of Sericulture, AAU, Jorhat, Assam (785 013), India
Nanita Bora
College of Sericulture, AAU, Titabar, Assam (785 632), India
Dhanalakhi Gogoi
Dept. of Sericulture, AAU, Jorhat, Assam (785 013), India
Merrylina Marak
Directorate of Sericulture, Govt. of Assam, Sivsagar, Assam (785 665), India
DOI: https://doi.org/10.54083/BRT/7.2.2025/58-60
Keywords: Barpat, Cocoon parameters, Mountages, Mulberry silkworm, Waste products
Abstract
A study was conducted during the two consecutive years, 2023-24 in the Department of Sericulture, Assam Agricultural University, Jorhat. The present experiment was taken to determine the accomplishment of waste material as mountages for Barpat (Bombyx mori) mulberry silkworm. The rearers occasionally do not have access to bamboo-made common mountages like chandraki. The waste materials like dried banana leaves, egg plates and newspaper were utilized to compare with the chandraki, the common mounting device. Three replications for each mountage were maintained separately for calculating the cocoon parameters. The separation of cocoons was done after the completion of the cocoon formation from each mountage. The significance difference of the economic cocoon parameters such as cocoon weight (g), shell weight (g) and shell ratio percentage were calculated by using a Completely Randomised Design. The results depicted that significant difference in cocoon weight (g) and shell ratio percentage were not found except in shell weight (g). The weight of the cocoon weight (1.450 g) and shell ratio (14.727) percent were observed highest in the chandraki but the highest value of shell weight (1.157 g) was observed in the egg plate. The shell ratio percentage in all the waste materials used as mountages showed similar results to chandraki. In case of scarcity of chandraki, these waste materials can be used as mountages by silkworm rearers.
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