SylbV01-00-00. pmd

Unit 1:
Three tier multiplication of silkworm seeds
Organization of egg production. Breeder stock, foundation stock and
commercial egg production (egg cards and loose egg preparation).
Unit 2:
Seed Act
Seed legislative act, 1959. Seed Act 2010.
BLOCK 2: Grainage
Unit 1:
Establishment of grainage
Location of grainage, plan of grainage, grainage equipments and
capacity of grainage.
Unit 2:
Grainage activities
Seed areas, seed cocoon market, procurement and transportation of
seed cocoons, selection, storage, handling and processing of seed
cocoons. Sex separation in pupal stage, moth emergence,
synchronization of moth emergence, pairing, depairing, moth
examination, laying preparation on egg cards/ loose egg production,
rejection of defective eggs, disinfection and washing and incubation of
eggs.
BLOCK 3: Artificial Hatching of eggs
Unit 1:
Production of hybrid eggs
Production of hybrid seeds (Multivoltine × Bivoltine), (Bivoltine ×
Bivoltine), (Bivoltine × Bivoltine) × (Bivoltine × Bivoltine) (Double
Cross Hybrid). Grainage pests. Economics of egg production and special
determinants.
Unit 2:
Artificial methods of hatching
Artificial methods of hatching of bivoltine eggs, cold and hot acid
treatments, physical and chemical methods, hibernation schedules.
VII. Practicals
• Silkworm breeds and their classification;

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Sericulture
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• Study of ground plan of model grainage building;
• Study of grainage equipments;
• Preliminary examination of seed cocoons for production of dfls, study of handling
and processing of seed cocoons;
• Study of sex separation at pupal and adult stages;
• Study of Silkworm egg incubation;
• Study of silkworm egg hibernation schedules;
• Study of grainage pests and their management;
• Preservation of male moths for reuse;
• Preservation of male and female pupae for synchronization;
• Effect of mating duration on egg production and fertility status of eggs;
• Disinfection of grainage equipments;
• Designation of multivoltine and bivoltine seed areas in Karnataka;
• Estimation of cocoon requirement for production of unit number of DFLs;
• Production of non-hibernating eggs of silkworm;
• Production of hibernating eggs of silkworm (on egg cards and loose egg preparation);
• Artificial hatching of silkworm eggs through acid treatment;
• Economics of silkworm egg production.