What is silkworm rearing?
Silkworm rearing is an extensive month-long exercise starting from egg stage and terminating in adults laying eggs and dying their natural death. Silkworm rearing effectively means the culturing of five larval instars as other stages like egg, pupa and adults are non-feeding stages.
What is sericulture Slideshare?
Sericulture or silk farming, is the rearing of silkworms for the production of raw silk. Sericulture is both an art and science of raising silkworms for silk production. Amongst species of silkworms, Bombix mori is the most widely used. Silk is known as the queen of textile and “BIOSTEEL” because of its strength.
What is rearing and management of silkworm?
Management of Silkworm Rearing, mounting & production of cocoon. Silkworm Rearing: – Silkworm is domesticated over thousands of years and the sole food for the growth of silkworm is mulberry leaf. Climatic requirements: – Under ideal conditions silkworm completes cocoon formation in 24-28 days from the day of hatching.
What is aquaculture PPT?
Aquaculture is organized production of a crop in the aquatic medium. The crop may be that of an animal or a plant. Naturally, the organism cultured has to be ordained by nature as aquatic. OR Aquaculture is the farming of aquatic organisms, including fish, mollusks, crustaceans and aquatic plants.
What is shoot rearing?
Shoot rearing –an economical way In this method of silkworm rearing, the last 3 stages of rearing will be conducted by giving mulberry shoots instead of individual leaves. This method is the most economical method of rearing, as it helps to save about 40% of rearing labour.
How many eggs are in one DFL?
One laying contains 450 – 500 eggs and needs 12 – 15 kg mulberry leaves for its rearing. On an Average 70 – 80 kg of cocoon yield can be obtained/ 100 DFLs.
What is the importance of silkworm?
Silkworm have a large role in rural life in many countries being an insect of economic importance. Silkworm produces silk as high quality fiber and silk fabrics are highly attractive. There are different lines and strains for silk production.
What’s the name of the stage of silkworm rearing?
What is late age rearing? well, as we have already mentioned above that the lifecycle of silkworms till the second stage is known as “Chawki”. From third stage development (from 3rd instars), worms are being known as late age rearing. The late age rearing worms engage in heavy feed consumption.
Which is the best way to rear silkworms in India?
The late age rearing worms engage in heavy feed consumption. However, late age rearing of worms requires different practices. Read: Sericulture Training in India. The silkworm rearing house must have a controlled environment for rearing Chawki and Late age silkworms.
What do you need to know about silkworm rearing houses?
The late age silkworm rearing house must have good cross-ventilation to bring down the house temperature and for removal of vapors and unfavorable or harmful gases generated from large quantities of silkworms excreta.
What happens to the skin of a silkworm?
Initially the skin shows oily and shining appearance. As the disease advances the skin becomes thin and fragile and the body becomes milky white with intersegmental swellings. contamination. Another characteristic symptom or this disease is that the larvae become restless and crawl aimlessly along the ridges or rims of rearing trays.
