Twenty-six bivoltine silkworm (Bombyx mori L.) genotypes were tested along with two check varieties (NB 4 D 2 and SH 6) for their performance. PDF | On Feb 27, , Zafar Iqbal Buhroo and others published Rearing Performance of Some Popular Bivoltine Silkworm (Bombyx mori L.). multiplication of silkworm breeds st P4lP3lPZ leaels and maintenance of . The bivoltine silkworms produce cocoons with high raw silk recovery and bivoltine.

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Psyche: A Journal of Entomology

The work in [ 48 ] observed that the pupation rate in Indian popular bivoltine breed, NB4D2, is significantly influenced by both low and high humidity. For Giant silk moth, see Saturniinae.

Whether rotary mountage is available in market? The larval length and width were measured using digital Vernier calipers. Eggs take about 14 days to hatch into larvae, which eat continuously.

Eggs should be free from pathogens. Maribashetty, Evolution of superior bivoltine races of silkworm Bombyx mori l for tropicsPh.

A total of ripened worms can be mounted in each set. There should not be unfertilized and dead eggs. Explicit use of et al. Care should be taken to apply only certified lime powder during moult and apply Vijetha powder 30 min.

Cost of production is reduced, 7. It is possible to shift the larvae during moult. Early exposure of eggs. After hours, bivoltije worms along with the upper net is lifted from the incubation frame and brushed in a chawki tray.


The single cocoon weight g was recorded bivkltine an average of 10 female and 10 male cocoons at random by using the following formula:. View at Google Scholar Y.

By using this site, you agree to the Terms of Use and Privacy Policy. A wooden comb is inserted in between the card boar, and – worms can be mounted with the help of boat shaped tray. The highest EER To avoid this, sufficient and uniform feeding, provide optimum spacing for each instar, proper incubation and avoid selfing during egg production.

There is no bad effect on silkworm by feeding water sprayed leaf particularly when atmospheric humidity is bivoptine in SUI and winter season. The Indian silk industry is a constant source of foreign exchange earnings and unique in producing all five siliworm of silk varieties viz.

In case of postponement of brushing, 1. The weight of single cocoon showed a similar trend as larval length and width. They are implanted during reconstructive surgery to support or restructure damaged ligaments, tendons, and other tissue.

For fourth instar kg and solkworm fifth instar kg shoots are required for 50, larvae of CSR hybrids.

Bombyx mori – Wikipedia

bivoltien What will happen if some un-ripened worms are mounted? Among the seasons, the spring season showed better growth and cocoon characteristics followed by autumn, summer and monsoon seasons. Whether moist leaf can be fed to just out of ma worms? The major objectives silkworj improving fecundity the egg-laying capacity of a breedthe health of larvae, quantity of cocoon and silk production, and disease resistance.


After cleaning the floss, arrange the card board randomly and pile up on vinyl sheet card board on one sheet. These are the reasons, farmers are getting Rs. Yes, there is a hormone phytoecdysone Plant extract which can be sprayed on the larvae for uniform ripening and mounting.

Selfing during egg preparation. Moulting larvae are identified by the feature of head raising siloworm mouth protrusion.

The performance of any mulberry variety with respect to leaf quality and cocoon production varies with agro-climatic conditions and cultivation practices. Encarsia formosa Ladybird Parasitoid wasp.

Wet shoots can be hanged to drain off water drop lets and after sometime. Uses authors parameter link CS1 maint: This led bivotline Gandhi’s promotion of cotton spinning machines, an example of which can be seen at the Gandhi Institute.