Di Rosa, A.R.; Caccamo, L.; Pansera, L.; Oteri, M.; Chiofalo, B.; Maricchiolo, G. Influence of Hermetia illucens Larvae Meal Dietary Inclusion on Growth Performance, Gut Histological Traits and Stress Parameters in Sparus aurata. Animals2023, 13, 339.
Di Rosa, A.R.; Caccamo, L.; Pansera, L.; Oteri, M.; Chiofalo, B.; Maricchiolo, G. Influence of Hermetia illucens Larvae Meal Dietary Inclusion on Growth Performance, Gut Histological Traits and Stress Parameters in Sparus aurata. Animals 2023, 13, 339.
Di Rosa, A.R.; Caccamo, L.; Pansera, L.; Oteri, M.; Chiofalo, B.; Maricchiolo, G. Influence of Hermetia illucens Larvae Meal Dietary Inclusion on Growth Performance, Gut Histological Traits and Stress Parameters in Sparus aurata. Animals2023, 13, 339.
Di Rosa, A.R.; Caccamo, L.; Pansera, L.; Oteri, M.; Chiofalo, B.; Maricchiolo, G. Influence of Hermetia illucens Larvae Meal Dietary Inclusion on Growth Performance, Gut Histological Traits and Stress Parameters in Sparus aurata. Animals 2023, 13, 339.
Abstract
The effect of defatted Hermetia illucens meal (HIM) dietary inclusion on growth performance, stress indicators and gut histological traits of Sparus aurata was studied. For 131 days, 312 fish were fed with one basal diet, containing fish meal as animal protein source, and three diets containing 25%, 35% and 50% HIM as a partial replacement for fishmeal. On all fish (26 fish per tank, 3 replicate tanks per diet, 78 fish per diet) the growth performance were calculated. At the end of the trial, on a subsample of 72 specimens (6 fish per tank, 3 replicate tanks per diet, 18 fish per diet), stress parameters were determined on blood samples and gut histological tract investigated. Insect meal inclusion did not affect (p > 0.05) growth performance, blood parameters, length and width of villi and goblet cell count of the posterior gut tract while, those of the anterior gut tract while increased (p < 0.05). The histological examination of the intestinal sections showed in fish fed the HIM25 and HIM50 diets, more frequent and evident morphological changes; instead, there were no substantial differences between HIM0 and HIM35 groups. In conclusion, the HIM35 was the most tolerated formulation by fish.
Keywords
black soldier fly; fishmeal substitution; gut histology; animal performance; gilthead seabream
Subject
Medicine and Pharmacology, Veterinary Medicine
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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