@misc{10481/66550,
year = {2021},
url = {http://hdl.handle.net/10481/66550},
abstract = {The misuse of antibiotics has led several countries to ban their use as prophylactics against bacterial diseases or as growth promoters in livestock and poultry. Phytobiotics (bioactive
compounds extracted from plants) are one of the alternatives, due to their antimicrobial activity and
its modulation of the gut microbiota and the improvement of productive properties. Garlic and onion
extracts, rich in antimicrobial compounds, are of the most promising alternative to antibiotics. We supplemented a garlic- and onion-based product in the diet to laying hens at the beginning of their productive
life. The group supplied with this product produced in one month more eggs and with bigger size.
This increase in production was accompanied by changes in the bacterial community of the gut. These
changes in the microbiota suggest an improvement in food digestibility, as the most important changes
produced by these compounds occur in the most distal parts of the gut. The relative abundance of
beneficial Lactococcus in the ileum and Lactobacillus in the cecum increased in the experimental group.
Both genera are known to have beneficial effects on host. These results are very promising for the use of
these compounds in poultry for short periods.},
abstract = {Phytobiotics (bioactive compounds extracted from plants) are one of the explored alternatives
to antibiotics in poultry and livestock due to their antimicrobial activity and its positive effects on
gut microbiota and productive properties. In this study, we supplemented a product based on garlic
and onion compounds in the diet to laying hens at the beginning of their productive life (from 16 to
20 weeks post-hatching). The experimental group showed a significant increase in the number of eggs
laid and in their size, produced in one month compared to the control. This increase in production was
accompanied by microbiota changes in the ileum and cecum by means of high throughput sequencing
analyses. These bacterial shifts in the ileum were mainly the result of compositional changes in the rare
biosphere (unweighted UniFrac), while in the cecum, treatment affected both majority and minority
bacterial groups (weighted and unweighted UniFrac). These changes in the microbiota suggest an
improvement in food digestibility. The relative abundance of Lactococcus in the ileum and Lactobacillus in
the cecum increased significantly in the experimental group. The relative abundance of these bacterial
genera are known to have positive effects on th},
organization = {Spanish Ministry of Science and Innovation, Consejería
de Economía, Innovación, Ciencia y Empleo (Junta de Andalucía)},
organization = {University of Granada-CEI BioTic
(Project No. P-BS-37)},
organization = {INTERCONECTA program (Spanish Ministry of Economy and
Competitiveness)},
publisher = {MDPI},
keywords = {Allium-based phytobiotic},
keywords = {Alliaceae extract},
keywords = {Laying hens},
keywords = {Gut microbiota},
keywords = {Egg production},
keywords = {High-throughput sequencing},
keywords = {Illumina MiSeq platform},
title = {Allium-Based Phytobiotic Enhances Egg Production in Laying Hens through Microbial Composition Changes in Ileum and Cecum},
doi = {10.3390/ani11020448},
author = {Rabelo Ruiz, Miguel and Ariza Romero, Juan José and Martín Platero, Antonio Manuel and Maqueda Abreu, Mercedes and Baños, Alberto and Valdivia Martínez, Dolores Eva and Martínez Bueno, Manuel and Peralta-Sánchez, Juan Manuel and Zurita González, María Jesús},
}