Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Evaluation of Growth Performance and Environmental Impact of Hermetia illucens Larvae Reared on Coffee Silverskin Enriched with Schizochytrium limacinum or Isochrysis galbana Microalgae

Ruschioni Sara
,
Duca Daniele
,
Tulli Francesca
ORCID logo ,
Zarantoniello Matteo
,
Cardinaletti Gloriana
ORCID logo ,
Corsi Lorenzo
,
Olivotto Ike
ORCID logo ,
Basili Danilo
,
Simona Naspetti
,
Cristina Truzzi
,
Nunzio Isidoro
,
Riolo Paola
*
Version 1 : Received: 10 October 2023 / Approved: 16 October 2023 / Online: 16 October 2023 (08:01:37 CEST)

How to cite: Sara, R.; Daniele, D.; Francesca, T.; Matteo, Z.; Gloriana, C.; Lorenzo, C.; Ike, O.; Danilo, B.; Naspetti, S.; Truzzi, C.; Isidoro, N.; Paola, R. Evaluation of Growth Performance and Environmental Impact of Hermetia illucens Larvae Reared on Coffee Silverskin Enriched with Schizochytrium limacinum or Isochrysis galbana Microalgae. Preprints 2023, 2023100931. https://doi.org/10.20944/preprints202310.0931.v1 Sara, R.; Daniele, D.; Francesca, T.; Matteo, Z.; Gloriana, C.; Lorenzo, C.; Ike, O.; Danilo, B.; Naspetti, S.; Truzzi, C.; Isidoro, N.; Paola, R. Evaluation of Growth Performance and Environmental Impact of Hermetia illucens Larvae Reared on Coffee Silverskin Enriched with Schizochytrium limacinum or Isochrysis galbana Microalgae. Preprints 2023, 2023100931. https://doi.org/10.20944/preprints202310.0931.v1

Abstract

Hermetia illucens is a very promising insect due to its ability to convert low-value substrates in highly nutrient feed. Its feeding and nutrition are important issues. This work aimed to study the effect of different substrates composed of coffee silverskin, by-product of the roasting process, enriched with different inclusion of microalgae (5%, 10%, 20%, 25%), Schizochytrium limacinum and Isochrysis galbana, coupled with the assessment of environmental sustainability by LCA. In general, the inclusion of microalgae caused an increase in the growth performance of the larvae, although S. limacinum showed the best results. Higher prepupal weight were observed in larvae fed on 20% and 25% of S. limacinum, shorter development times in larvae fed on 25% of both S. limacinum and I. galbana and higher growth rate were observed in larvae fed on 25% of S. limacinum. Anyway, the inclusion of 10% of S. limacinum showed a small difference with the higher inclusions. Moreover, the 10% of S. limacinum achieved the best waste reduction index. Therefore, considering the greater inclusion of microalgae, the higher the environmental impact of larvae production, the addition of 10% of S. limacinum seems to be the best compromise for the larval rearing.

Keywords

Hermetia illucens; growth performance; sustanability; coffee sirvelskin; microalgae

Subject

Biology and Life Sciences, Insect Science

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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