Plasma 1 H-NMR metabolic and amino acid profiles of newborn piglets from two lines divergently selected for residual feed intake.

Autor: Liaubet L; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France. laurence.liaubet@inrae.fr., Guilmineau C; Université de Toulouse, INRAE, UR MIAT, 31326, Castanet-Tolosan, France., Lefort G; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France.; Université de Toulouse, INRAE, UR MIAT, 31326, Castanet-Tolosan, France.; CNRS, IFCE, INRAE, Université de Tours, PRC, 37380, Nouzilly, France., Billon Y; INRAE, GENESI, 17700, Saint Pierre d'Amilly, France., Reigner S; INRAE, GENESI, 17700, Saint Pierre d'Amilly, France., Bailly J; INRAE, GENESI, 17700, Saint Pierre d'Amilly, France., Marty-Gasset N; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France., Gress L; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France., Servien R; INRAE, Univ. Montpellier, LBE, 102 Avenue des étangs, 11100, Narbonne, France., Bonnet A; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France., Gilbert H; GenPhySE, Université de Toulouse, INRAE, ENVT, 31326, Castanet Tolosan, France., Vialaneix N; Université de Toulouse, INRAE, UR MIAT, 31326, Castanet-Tolosan, France., Quesnel H; PEGASE, INRAE, Institut Agro, 35590, Saint-Gilles, France.
Jazyk: angličtina
Zdroj: Scientific reports [Sci Rep] 2023 May 02; Vol. 13 (1), pp. 7127. Date of Electronic Publication: 2023 May 02.
DOI: 10.1038/s41598-023-34279-5
Abstrakt: Together with environmental factors, physiological maturity at birth is a major determinant for neonatal survival and postnatal development in mammalian species. Maturity at birth is the outcome of complex mechanisms of intra-uterine development and maturation during the end of gestation. In pig production, piglet preweaning mortality averages 20% of the litter and thus, maturity is a major welfare and economic concern. Here, we used both targeted and untargeted metabolomic approaches to provide a deeper understanding of the maturity in a model of lines of pigs divergently selected on residual feed intake (RFI), previously shown to have contrasted signs of maturity at birth. Analyses were conducted on plasma metabolome of piglets at birth and integrated with other phenotypic characteristics associated to maturity. We confirmed proline and myo-inositol, previously described for their association with delayed growth, as potential markers of maturity. Urea cycle and energy metabolism were found more regulated in piglets from high and low RFI lines, respectively, suggesting a better thermoregulation ability for the low RFI (with higher feed efficiency) piglets.
(© 2023. The Author(s).)
Databáze: MEDLINE
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