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Título: | Natural and artificial feeding management before weaning promote different rumen microbial colonization but not differences in gene expression levels at the rumen epithelium of newborn goats |
Autor: | Abecia, Leticia CSIC ORCID; Jiménez, Elisabeth CSIC ORCID; Martínez-Fernández, Gonzalo CSIC; Martín García, A. Ignacio CSIC ORCID; Ramos Morales, Eva CSIC ORCID; Pinloche, E.; Denman, Stuart E.; Newbold, C. Jamie; Yáñez Ruiz, David R. CSIC ORCID | Fecha de publicación: | 2017 | Editor: | Public Library of Science | Citación: | PLoS ONE 12: e0182235 (2017) | Resumen: | The aim of this work was to evaluate the effect of feeding management during the first month of life (natural with the mother, NAT, or artificial with milk replacer, ART) on the rumen microbial colonization and the host innate immune response. Thirty pregnant goats carrying two fetuses were used. At birth one kid was taken immediately away from the doe and fed milk replacer (ART) while the other remained with the mother (NAT). Kids from groups received colostrum during first 2 days of life. Groups of four kids (from ART and NAT experimental groups) were slaughtered at 1, 3, 7, 14, 21 and 28 days of life. On the sampling day, after slaughtering, the rumen content was sampled and epithelial rumen tissue was collected. Pyrosequencing analyses of the bacterial community structure on samples collected at 3, 7, 14 and 28 days showed that both systems promoted significantly different colonization patterns (P = 0.001). Diversity indices increased with age and were higher in NAT feeding system. Lower mRNA abundance was detected in TLR2, TLR8 and TLR10 in days 3 and 5 compared to the other days (7, 14, 21 and 28). Only TLR5 showed a significantly different level of expression according to the feeding system, presenting higher mRNA abundances in ART kids. PGLYRP1 showed significantly higher abundance levels in days 3, 5 and 7, and then experienced a decline independently of the feeding system. These observations confirmed a highly diverse microbial colonisation from the first day of life in the undeveloped rumen, and show that the colonization pattern substantially differs between preruminants reared under natural or artificial milk feeding systems. However, the rumen epithelial immune development does not differentially respond to distinct microbial colonization patterns. | URI: | http://hdl.handle.net/10261/177429 | DOI: | 10.1371/journal.pone.0182235 | Identificadores: | doi: 10.1371/journal.pone.0182235 issn: 1932-6203 |
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