Studies on the utilization of single cell protein by the silkworm Bombyx mori

Abstract

Final‐instar larvae of Bombyx mori fed mulberry leaves, supplemented with Spirulina fusiformis (Woronichin) as a source of single cell protein (SCP), required 6 days to attain a maximum larval weight of 2090 mg; control group larvae needed 9 days to attain a final larval weight of 1470 mg. Quantity of feeding, assimilation and conversion efficiencies increased substantially in the SCP‐fed group. Significant improvements in the economic characters such as cocoon, pupal, and shell weights were obtained in the SCP supplemented larvae in comparison to the normal leaf fed larvae. About 15% of the labelled S. fusiformis was directly incorporated into larval tissue. Presence of SCP in the gut facilitated better conversion of consumed leaf protein. RÉSUMÉ Etudes sur l'utilisation des protéines de cellules isolées par le ver à soie, Bombyx mori Des chenilles du dernier stade de Bombyx mori, alimentées sur mǔrier additionné de Spirulina fusiformis comme source de protéine de cellule isolée (SCP), atteignent en 6 jours le poids larvaire maximum de 2090 mg; les chenilles témoins consommaient pendant 9 jours pour obtenir leur poids larvaire final de 1470 mg. Les quantités consommées, les coefficients d'assimilation et de conversion ont augmenté substantiellement chez les chenilles avec SCP. Des augmentations significatives de critères économiques, comme les poids de cocon, de nymphe et de cogul, ont été observées avec l'addition de SCP par rapport aux témoins. Environ 15% du S. fusiformis marqué a été incorporé directement dans les tissus larvaires. La présence de SCP dans l'intestin a permis une meilleure conversion des protéines foliaires consommées.

Comparative Study on Effects of some High Protein Content Nutritional Additives on some Hybrids of Mulberry Silkworm, Bombyx mori L. دراسة مقارنة لتأثیر بعض الإضافات الغذائیة عالیة المحتوى البروتینی على بعض هجن دودة الحریر التوتیة "بومبیکس موراى"

“…The increased ERR% observed in the present study when supplemented with high protein content additives, may be due to lower incidence of diseases in the treated silkworms because of the influence of feed additives containing protein, amino acids, carbohydrates and minerals which act as building blocks of tissues making them more healthy as documented by Rekha and Neelu (2010). Similar trend was reported by Mathavan et al (1984), Etebari and Fazilati, (2003), Ravi et al, (2010) &yadav andBagdi,( 2015).…”

Influence of Herbal Tonic Alloe on the Overall Performance of the Mulberry Silkworm, Bombyx Mori L.

“…They averaged 38.11, 42.80, 50.68, 56.13 and 62.17 for the control larvae and the larvae that experimental supplementation respectively. The improvement noticed in the overall rearing performance of the final instar larvae of B. mori in response to the dietary supplementation of Aloe vera tonic in the present study indicate the possibility of using it to realize the ultimate applied objective of qualitative and quantitative improvements of silk yield in sericulture research (Mathavan et al, 1984). Numerous medicinal plants have become key ingredients for dietary supplements and related industries.…”

Impact of Adding some Algal Probiotics (Spirulina Plantalis and Azolla Pinnata) as Food Supplements to Silkworm, Bombyx mori L. for Strengthening the Sericulture Industry

“…Furthermore, increasing larval duration depends on the additives and the type of probiotics Shruti et al (2019). Silkworms fed on mulberry leaves smeared with Spirulina fusiforma during the 5 th instar consumed 6 days otherwise untreated group took 9 days Mathavan et al (1984).…”