Silkworm Seed (Egg- Polu koni) is the backbone of silk industry. Healthy egg production is indeed the primary requisite for conducive growth of the entire silk industry. Timely supply of superior quality of silkworm seed can alone sustain sericulture as a commercial crop in competition with other cash crops. Muga culture in North Eastern India is practiced all the year where seasons and rearing conditions vary. Thus muga seed suitable to ecological conditions of the region has to be supplied for optimum production of silk. In areas where muga culture is practiced as seasonal crops, timely supply of quality seed demands proper planning of seed production and distribution of the same. In upper Assam practiced mainly commercial crop on seasonal basis, supply of muga seed requires proper planning. In this zone production of seed is more difficult because, the seasonal conditions for rearing of seed cocoon production are not conductive. Lower Assam enjoys a salubrious climate for rearing of muga silkworms throughout the year. This area has identified as seed zone by Central Silk Board.
The silkworm seed production centers are referred as grainages. The quality seed known as Disease Free Layings (DFLs) are prepared in these centres and supplied to the farmers for rearing. Both Government and private sector grainages are involved in this activity.
12Nos. of Mulberry Silkworm Seed Farms i.e. Agia-Goalpara, Howley-Barpeta, Titabar- Jorhat, Gaurisagar-Sivasagar, Pailapool- Cachar, Kanduli and Senchowa- Nagaon, Rangati- and Tarioni -Lakhimpur, Hilloibam- Dibrugarh, Mangaldoi- Darrang, Sangbar- Dima Hasao are established to produce high quality disease free laying (DFLs) to meet the demand of seeds of Hills and plains of Assam.
Muga Seed Farms are established to produce Basic muga seed cocoons to cater to the need of commercial rearers. Govt. Basic Muga Seed Farm Khanapara, in Kamrup, Govt. Basic Muga Seed Farm, Narayanpur, in Lakhimpur, Govt. Basic Muga Seed Farm, Kokrajhar in Kokrajhar, Muga P2 Station- Jalah in Baksa, Muga sub-station Sarupathaer in Golaghat, Muga Farm Hamren in Karbi Anglong, Khorongma and Langklam in Dima Hasao. Besides these 6 Nos Muga Seed Development Project (MSDP), MSDP Bhakatpara and Kahibama in Kamrup, MSDP, Jagduar in Jorhat, MSDP in Barahibari-Sivasagar and MSDP Dhakuakhana in Lakhimpur district are established to produce quality muga seed cocoon and seeds..
26 Nos. Eri Seed Grainage (ESG) Borduar, Topatoli- Kamrup, Jamuguri- Sonitpur, Deomornoi- Darrang, Barbaha- Nagaon (Hojai), Oujari- Morigaon, Demow- Sivasagar, Rangagarah- Golaghat (Bokakhat), North Lakhimpur- Lakhimpur, Jonai- Dhemaji (Jonai), Rangsali- Dibrugarh, Tingrai, - Tinsukia , Lakhimipathar- Tinsukia (Sadiya), Dharmikhal, Harinagar- Cachar, Adarkona- Karimganj, Dhenubhanga Goalpara, Kokrajhar-Kokrajhar, Goreswar, Jalah- Baksa, Bhergaon- Udalguri (Bhergaon), Dengaon, Dillaji, Umsoi- Karbi Anglong, Khejurband, Haflong- Dima Hasao are established which produce Disease free layings to cater to the need of eri rearers.
Sericulture Demonstrator and Assistant Manager are conduct rearing in farm and centre and take active participation in raising of seedling and DFLs production and supply the Seedling and DFLs to the farmers.