Person:
Rebollada Merino, Agustín Miguel

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First Name
Agustín Miguel
Last Name
Rebollada Merino
URI
https://hdl.handle.net/20.500.14352/84541
Affiliation
Universidad Complutense de Madrid
Faculty / Institute
Veterinaria
Department
Medicina y Cirugía Animal
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End date: 2019 × Start date: 2019 ×

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    Effects on Intestinal Mucosal Morphology, Productive Parameters and Microbiota Composition after Supplementation with Fermented Defatted Alperujo (FDA) in Laying Hens
    (Antibiotics, 2019) Rebollada Merino, Agustín Miguel; Bárcena Asensio, Carmen; Ugarte Ruiz, María; Porras González, Néstor; Mayoral Alegre, Francisco Jesús; Tomé Sánchez, Irene; Rodríguez Bertos, Antonio Manuel; Domínguez Rodríguez, Lucas José
    The olive oil sector is currently adapting its traditional function to also become a supplier of high-value by-products that possess antioxidant, anti-inflammatory and antimicrobial properties. In this study, we evaluated the effect of the fermented defatted alperujo (FDA) on the intestinal health of laying hens. The morphology of the duodenal and cecal mucosa, the composition of the intestinal microbiota and the productivity of a batch of laying hens were evaluated after FDA supplementation. At early life stages, significant differences (p < 0.001) were observed in duodenal villi height and in crypt depth of both the duodenum and the cecum in the FDA-supplemented group, indicating improved intestinal health in this group. Microbiota composition in the hatchery group supplemented with FDA had a higher abundance of Actinobacteria, Firmicutes and Proteobacteria, and higher bacterial diversity. During the production period, significant differences (p < 0.05) were observed in the number of broken eggs from the supplemented group. We conclude that FDA supplementation improves the absorption capacity of the intestinal mucosa and modifies the intestinal microbiota to favor a greater immune response, leading to an increase in egg production.