Effect of delayed brushing of black-boxed eggs on hatching and rearing performance in silkworm, Bombyx mori L
Effect of delayed brushing of black-boxed eggs on hatching and rearing performance in silkworm, Bombyx mori L
Muniraju, E.; Sekharappa, B.M.; Raghuraman, R.
Indian Journal of Sericulture 40(1): 76-80
2001
ISSN/ISBN: 0445-7722
Silkworm (races BV, NB4D2, and PM x NB4d2) eggs are black-boxed at pin-head or at blue-egg stage (eight or ninth day of oviposition) to get uniform and maximum hatching in a short duration on the expected day of hatching (tenth day). Rearers have attempted to postpone the release of eggs from the black box to avoid irregular hatching.