Effect of partial substitution of fishmeal with insect meal (Hermetia illucens) on gut neuromuscular function in Gilthead sea bream (Sparus aurata)
Autor: | Maria Cecilia Giron, Chiara Ceccotti, Genciana Terova, Annalisa Bosi, Cristina Giaroni, Davide Banfi, Federico Moroni, Micaela Antonini |
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Rok vydání: | 2021 |
Předmět: |
medicine.medical_specialty
Hermetia illucens Physiology Sodium Science Neuromuscular Junction chemistry.chemical_element Biology Animal Feed Animals Diet Diptera Gastrointestinal Transit Intestines Muscle Smooth Sea Bream Article Commercial fish feed 03 medical and health sciences 0302 clinical medicine Fish meal Internal medicine medicine Myenteric plexus 030304 developmental biology Peristalsis 2. Zero hunger 0303 health sciences Meal Multidisciplinary biology.organism_classification Endocrinology chemistry Cholinergic Muscle Medicine Smooth Zoology 030217 neurology & neurosurgery Neuroscience |
Zdroj: | Scientific Reports Scientific Reports, Vol 11, Iss 1, Pp 1-15 (2021) |
ISSN: | 2045-2322 |
DOI: | 10.1038/s41598-021-01242-1 |
Popis: | Alternative nutrient sources to fishmeal for fish feed, such as insect meals, represent a promising sustainable supply. However, the consequences for fish digestive function have not been exhaustively investigated. In the present study we evaluated the effect of partial fishmeal substitution with 10% Hermetia illucens (Hi10) larvae meal on the neuromuscular function of proximal and distal intestine in gilthead sea bream. In animals fed with insect meal, weight and growth parameters were similar to controls fed with conventional fishmeal. In addition, no anomalies in intestinal gross morphology and no overt signs of inflammation were observed. The gastrointestinal transit was significantly reduced in Hi10 fed animals. In the proximal and distal intestine longitudinal muscle, Hi10 feeding downregulated the excitatory cholinergic and serotoninergic transmission. Sodium nitroprusside-induced inhibitory relaxations increased in the proximal intestine and decreased in the distal intestine after Hi10 meal. Changes in the excitatory and inhibitory components of peristalsis were associated with adaptive changes in the chemical coding of both proximal and distal intestine myenteric plexus. However, these neuromuscular function alterations were not associated with considerable variations in morphometric growth parameters, suggesting that 10% Hi meal may represent a tolerable alternative protein source for gilthead sea bream diets. |
Databáze: | OpenAIRE |
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