22 Ara 2024 Pazar
Effect of antibiotic administration on growth and development of silk gland in mulberry silkworm (Bombyx mori L.)
Abstract :Nutrition
is the important physiological process, which plays a prime role in the growth
and in turn it affects the productivity of the silkworm.The
supplementation of different materialsalong with mulberry leaves to silkworm results higher yield because the
production of quality silk mainly depends on larval nutrition. The influence of
antibiotic on growth and development of silkworm larva and silk gland was
assessed. Solution of two concentrations (50 and 100 ppm) of antibiotic
(Norfloxacin®) was administered orally along with mulberry leaves to two
popular Indian silkworm hybrids (CSR2× CSR4 and BL67×CSR101) during 5th
instar larval period. It was found that administration of antibiotic enhanced
the growth and development of silkworm and recorded significantly higher silk
gland, larval, shell and cocoon weight in treated batches. The growth of the
silk gland during different hours of 5th instar was observed and
maximum growth was recorded during 144 hrs and it was significantly higher for
treated batches. The study summarizes that supplementation of mulberry leaves
with antibiotic have a significant improvement in growth and development of
silkworm larva, silk gland as well as other economical traits of silkworm
Antibiotic administration, Norfloxacin, Growth of silk gland, larval weight, Bombyx
mori L.