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Colombino E, Gariglio M, Biasato I, Ferrocino I, Pozzo S, Fragola E, Battisti E, Zanet S, Ferroglio E, Capucchio MT, Schiavone A. Insect live larvae as a new nutritional model in duck: effects on gut health. Anim Microbiome 2024; 6:31. [PMID: 38812012 PMCID: PMC11137933 DOI: 10.1186/s42523-024-00316-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 05/13/2024] [Indexed: 05/31/2024] Open
Abstract
BACKGROUND This study aimed to evaluate the effects of Hermetia illucens (Black soldier fly-BSF) and Tenebrio molitor (Yellow mealworm-YMW) live larvae as a new nutritional model on duck's gut health, considering gut histomorphometry, mucin composition, cytokines transcription levels, and microbiota. A total of 126, 3-days-old, females Muscovy ducks were randomly allotted to three dietary treatments (6 replicates/treatment, 7 birds/pen): (i) C: basal diet; (ii) BSF: C + BSF live larvae; (iii) YMW: C + YMW live larvae. BSF and YMW live larvae were administered on top of the basal diet, based on the 5% of the expected daily feed intake. The live weight, average daily gain, average daily feed intake and feed conversion ratio were evaluated for the whole experimental period. On day 52, 12 ducks/treatment (2 birds/replicate) were slaughtered and samples of duodenum, jejunum, ileum, spleen, liver, thymus and bursa of Fabricius were collected for histomorphometry. Mucin composition was evaluated in the small intestine through histochemical staining while jejunal MUC-2 and cytokines transcription levels were evaluated by rt-qPCR. Cecal microbiota was also analyzed by means of 16 S rRNA gene sequencing. RESULTS Birds' growth performance and histomorphometry were not influenced by diet, with a proximo-distal decreasing gradient from duodenum to ileum (p < 0.001), respecting the physiological gut development. Mucin staining intensity and MUC-2 gene expression did not vary among dietary treatments, even though mucin intensity increased from duodenum to ileum, according to normal gut mucus physiology (p < 0.001). Regarding local immune response, IL-6 was higher in YMW group when compared to the other groups (p = 0.009). Insect live larvae did not affect cecal microbiota diversity, but BSF and YMW groups showed a higher presence of Helicobacter, Elusimicrobium, and Succinatimonas and a lower abundance of Coriobacteriaceae and Phascolarctobacterium compared to C birds (p < 0.05). CONCLUSIONS The use of BSF and YMW live larvae as new nutritional model did not impair gut development and mucin composition of Muscovy ducks, but slightly improved the intestinal immune status and the microbiota composition by enhancing regulatory cytokine IL-6 and by increasing minor Operational Taxonomic Units (OTUs) involved in short-chain fatty acids production.
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Affiliation(s)
- Elena Colombino
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Marta Gariglio
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy.
| | - Ilaria Biasato
- Department of Agricultural, Forestry and Food Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Ilario Ferrocino
- Department of Agricultural, Forestry and Food Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Sara Pozzo
- National Research Council, Institute of Agricultural Biology and Biotechnology (CNR-IBBA), Milano, 20133, MI, Italy
| | - Emma Fragola
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Elena Battisti
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Stefania Zanet
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Ezio Ferroglio
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
| | - Maria Teresa Capucchio
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
- National Research Council, Institute of Science of Food Production, Grugliasco, 10095, TO, Italy
| | - Achille Schiavone
- Department of Veterinary Sciences, University of Turin, Grugliasco, 10095, TO, Italy
- National Research Council, Institute of Science of Food Production, Grugliasco, 10095, TO, Italy
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Attia YA, Bovera F, Asiry KA, Alqurashi S, Alrefaei MS. Fish and Black Soldier Fly Meals as Partial Replacements for Soybean Meal Can Affect Sustainability of Productive Performance, Blood Constituents, Gut Microbiota, and Nutrient Excretion of Broiler Chickens. Animals (Basel) 2023; 13:2759. [PMID: 37685023 PMCID: PMC10486501 DOI: 10.3390/ani13172759] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Revised: 08/21/2023] [Accepted: 08/23/2023] [Indexed: 09/10/2023] Open
Abstract
One hundred and twenty, one-day-old male broiler chicks were used to investigate the effects of supplementation with different dietary protein sources on their performance and immune systems. Chicks were randomly divided into four equal experimental groups (six replicates, each of five chicks). The first group served as a control and was fed a standard corn-soybean meal diet. The second, third, and fourth groups were fed diets in which the soybean meal (SBM) was partly replaced by fish meal (FM), black soldier fly larvae (BSFL), and black soldier fly prepupae (BSFP), respectively. Throughout 1-14 and 15-42 days of age, FM, BSFL, and BSFP were added at 3 and 5%, respectively. The feed conversion ratio (FCR) of the FM group was the best among the tested groups. Feeding BSFP decreased final body weight (BW), BW gain, feed intake, and impaired the FCR compared to the other treatments for the entire experimental period. The BSFP group had significantly lower cecal Salmonella counts compared to the control group and lower total bacterial counts compared to the other groups except for BSFL. BSFL can be fed to broiler chickens at 3% during the starter period and 5% during the grower-finisher periods without negative influences on growth performance, red blood cell characteristics, blood lipid profiles, and nutrient excretion, while BSFP can improve the chickens' gut ecosystem.
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Affiliation(s)
- Youssef A. Attia
- Sustainable Agriculture Production Research Group, Agriculture Department, Faculty of Environmental Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (K.A.A.); (M.S.A.)
| | - Fulvia Bovera
- Sustainable Agriculture Production Research Group, Department of Veterinary Medicine and Animal Production, University of Napoli Federico II, Via F. Delpino 1, 80137 Napoli, Italy
| | - Khalid A. Asiry
- Sustainable Agriculture Production Research Group, Agriculture Department, Faculty of Environmental Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (K.A.A.); (M.S.A.)
| | - Shatha Alqurashi
- Department of Biology, College of Science, University of Jeddah, Jeddah 23218, Saudi Arabia;
| | - Majed S. Alrefaei
- Sustainable Agriculture Production Research Group, Agriculture Department, Faculty of Environmental Science, King Abdulaziz University, Jeddah 21589, Saudi Arabia; (K.A.A.); (M.S.A.)
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