Caracterização do desenvolvimento da fase larvar (5-19 dias) da mosca soldado negra (hermetia illucens l.1758) inoculada em substratos preparados com estrume de aves, suínos e bovinos
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Data
2022
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O uso de larvas da mosca soldado negra (Hermetia illucens L. 1758.) pode representar uma forma eficiente para reciclar resíduos orgânicos, como estrumes e produzir compostos de alta qualidade para incorporação em solos agrícolas e biomassa larvar que pode ser usada na produção de biodiesel.
No presente estudo, o objetivo foi determinar o efeito de três diferentes tipos de es-trume (frango, bovino e suíno) usados na preparação do substrato inoculado com larvas juvenis de mosca soldado negra sobre o peso das larvas aos 4, 8, 11 e 14 dias após a inoculação, com-posição centesimal e composição mineral das larvas qualidade final do fertilizante orgânico (frass), aos 14 dias, bem como o índice de conversão em biomassa larvar.
Relativamente às larvas foi possível observar que no ensaio com estrume de aves e de suíno, as larvas criadas no estrume foram mais pesadas que os controlos 53.9 e 36.36% respe-tivamente. Foi possível observar índices de bioconversão de 9.2 a 18.8%. No que diz respeito ao frass foi observada uma diminuição de humidade de cerca de 20% nos grupos experimentais em comparação com os grupos de controlo.
Foi possível concluir que as BSFL têm capacidade de se desenvolverem em estrume e que o substrato com melhores resultados em termos de qualidade das larvas, assim como do frass, foi a mistura com estrume de suíno. Estes resultados demonstram que este seria um bom método para tratamento de efluentes.
Palavras-Chave: Mosca soldado negra, estrume, frass, bioconversão, sustentabilidade
The use of black soldier fly larvae (Hermetia illucens L. 1758.) can represent an efficient way to recycle organic waste such as manure and produce high-quality composts for in-corporation into agricultural soils and the larvar biomass can be used in the production of bio-diesel. In the present study, the objective was to determine the effect of three different types of manure (chicken, beef and swine) used in the preparation of the substrate inoculated with 5-day-old black soldier fly larvae on the larvae weight at 4, 8, 11 and 14 days after inoculation, centesimal composition and mineral composition of larvae and final frass quality at 14 days, as well as the larval biomass conversion rate. Regarding the larvae, it was possible to observe that in the test with chicken and swine manure, the larvae reared in the manure were heavier than the controls 53.9 and 36.36% respectively. It was possible to observe bioconversion rates from 9.2 to 18.8%. Regarding the frass, a decrease in the humidity of about 20% was observed in the experimental groups when compared with the control group. It was possible to conclude that BSFL can develop in manure and that the substrate with the best results in terms of larvae quality, as well as frass, was the mixture with swine manure. Therefore, these results show that this method would be a good method to use in effluent treatment. Keywords: Black soldier fly, manure, frass, larvae, sustainability
The use of black soldier fly larvae (Hermetia illucens L. 1758.) can represent an efficient way to recycle organic waste such as manure and produce high-quality composts for in-corporation into agricultural soils and the larvar biomass can be used in the production of bio-diesel. In the present study, the objective was to determine the effect of three different types of manure (chicken, beef and swine) used in the preparation of the substrate inoculated with 5-day-old black soldier fly larvae on the larvae weight at 4, 8, 11 and 14 days after inoculation, centesimal composition and mineral composition of larvae and final frass quality at 14 days, as well as the larval biomass conversion rate. Regarding the larvae, it was possible to observe that in the test with chicken and swine manure, the larvae reared in the manure were heavier than the controls 53.9 and 36.36% respectively. It was possible to observe bioconversion rates from 9.2 to 18.8%. Regarding the frass, a decrease in the humidity of about 20% was observed in the experimental groups when compared with the control group. It was possible to conclude that BSFL can develop in manure and that the substrate with the best results in terms of larvae quality, as well as frass, was the mixture with swine manure. Therefore, these results show that this method would be a good method to use in effluent treatment. Keywords: Black soldier fly, manure, frass, larvae, sustainability
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Orientação: Cristina Bressan
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MESTRADO INTEGRADO EM MEDICINA VETERINÁRIA, MEDICINA VETERINÁRIA, VETERINARY MEDICINE, VETERINÁRIA, BIOCONVERSÃO, BIOCONVERSION, SUSTENTABILIDADE, SUSTAINABILITY, MOSCAS, FLIES, ESTRUME, MANURE