RT article
T1 Fast and Slow-Growing Management Systems: Characterisation of Broiler Caecal Microbiota Development throughout the Growing Period
A1 Montoro-Dasí, Laura
A1 Villagra, Arantxa
A1 De-Toro, María
A1 Pérez-Gracia, María T.
A1 Vega, Santiago
A1 Marín, Clara
K1 Biomarker
K1 16S rRNA analysis
K1 L50  Animal physiology and biochemistry
K1 L52  Animal physiology - Growth and development
K1 Broilers
K1 Growing period
K1 Microbiota
AB Caecal microbiota and its modulation play an important role in poultry health, productivityand disease control. Moreover, due to the emergence of antimicrobial-resistant bacteria, society ispressing for a reduction in antibiotic administration by finding e ective alternatives at farm level,such as less intensified production systems. Hence, the aim of this study was to characterise thecaecal microbiota in two di erent broiler management systems, fast and slow-growing, using 16SrRNA sequencing analysis. To this end 576 broilers were reared in two di erent management systems(fast and slow-growing). Results showed that Firmicutes represented the dominant phylum for bothsystems. At the onset, Proteobacteria was the second prevalent phylum for fast and slow-growingbreeds, outnumbering the Bacteroidetes. However, during the rest of the production cycle, Bacteroideteswas more abundant than Proteobacteria in both groups. Finally, regardless of the management system,the most predominant genera identified were Oscillospira spp., Ruminococcus spp., Coprococcus spp.,Lactobacillus spp. and Bacteroides spp. In conclusion, fast and slow-growing broiler microbiota are inconstant development throughout rearing, being relatively stable at 21 days of age. Regarding thegenus, it should be noted that the three most abundant groups for both systems, Ruminococcus spp.,Lactobacillus spp. and Bacteroides spp., are related to better productive performance and intestinal health.
PB MDPI
SN 2076-2615
YR 2020
FD 2020
LK http://hdl.handle.net/20.500.11939/6640
UL http://hdl.handle.net/20.500.11939/6640
LA en
NO Montoro-Dasi, L., Villagra, A., de Toro, M., Pérez-Gracia, M. T., Vega, S., & Marin, C. (2020). Fast and Slow-Growing Management Systems: Characterisation of Broiler Caecal Microbiota Development throughout the Growing Period. Animals, 10(8), 1401.
DS MINDS@UW
RD Aug 19, 2022