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Feed efficiency of the silkworm Bombyx mori L. Hybrid (NB4D2 × KA)

Published online by Cambridge University Press:  19 September 2011

K. V. Anantha Raman ,
S. B. Magadum  and
R. K. Datta
K. V. Anantha Raman
Affiliation:
Silkworm Physiology Laboratory Central Sericultural Research and Training Institute, Srirampura, Mysore-570 08, India
S. B. Magadum
Affiliation:
Silkworm Physiology Laboratory Central Sericultural Research and Training Institute, Srirampura, Mysore-570 08, India
R. K. Datta
Affiliation:
Silkworm Physiology Laboratory Central Sericultural Research and Training Institute, Srirampura, Mysore-570 08, India
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Abstract

Food consumption and utilization of a bivoltine silkworm hybrid was studied to understand the efficiency of food conversion into larval body, cocoon and cocoon shell during the life cycle. The ingesta, digesta, excreta, reference ratio, mean daily food ingested and digested in different larval instars were recorded. All these parameters differed from one larval instar to another. The AD and ECI were inversely correlated with the larval age. The ECI and ECD for body, cocoon and cocoon shell were 23.63, 17.59, 9.496 and 55.12, 46.65 and 25.23% respectively. Ingesta and digesta required to produce a gram body weight, progressively increased from first to fifth instar. Ingesta and digesta for one gram body, cocoon and cocoon shell production were 4.402, 5.762, 10.649 g and 1.840, 2.184 and 4.047 g respectively.

Résumé

Nourriture consommation et utilization des bivoltine hybrid étè etudie pendant le larve periode. Le ingeste digere excrete reference raison moyen toujour nourriture ingeste et digerer registre dans le different larve period. Ceux ci parametre different de une larve instar pour l'outre. Le AD, ECI, exposer a la ves in verse correlation avec l'age de larve le ECI et ECD pour corps cocoon et cocoon coque sont 23.63, 17.59, 9.49 et 55.12, 46.65 et 25.23 respectivement. Ingeste et digerer requirer prodiut une gramme corp poids accoitre piogiessist de premier jusque cinquiene instar. Ingeste et digerer pous une gramme corps cocoon, cocoon coque prodint son 4.402, 5.762, 10.649 et 1.84, 2.184 et 4.047. Le donnees exposer a la vu efficacement ce nuriture convertible values sont en per avec japanais reproducre.

Keywords

Bombyx morinutritional parametersfeed efficiency
Type
Research Articles
Information
International Journal of Tropical Insect Science , Volume 15 , Issue 2 , April 1994 , pp. 111 - 116
Copyright
Copyright © ICIPE 1994

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References

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