Effect of multiple mating on reproductive in three popular races of silkworm Bombyx mori L.

P.J. Raju, Mahadevappa, D. Guruswamy, R. Raghuraman and S.B. Dandin


Economics of egg production is vital for grainages since it is a commercial preposition which necessitates recovery of maximum number of laying with high fecundity. Attempts have been made to increase reproductive rate by multiple mating in Pure Mysore (PM), a multivoltine race and Kalimpong-A (KA) and NB4D2 , the bivoltine races of silkworm Bombyx mori L. The studies revealed increase in egg laying coefficient for multiple-mated moths of all three races. The possible mechanism in multiple mating which stimulates oogenesis and thereby reproductive rate is discussed.

Keywords: Bombyx mori L. Fecundity. Multiple mating.

Annals of Tropical Research 18:(1996)
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