Identification of disordered metabolic networks in postpartum dairy cows with
left displacement of the abomasum through integrated metabolomics and pathway analyses.
J Vet Med Sci 2019;
82:115-124. [PMID:
31852859 PMCID:
PMC7041990 DOI:
10.1292/jvms.19-0378]
[Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
High-producing dairy cows are easily affected by left displacement of the abomasum (LDA)
within 4 weeks postpartum. Although LDA is highly associated with metabolic disturbances,
the related information on comprehensive metabolic changes, with the exception of some
blood biochemical parameters, remains limited. In this study, the changes in plasma
metabolites and in the metabolic profile of postpartum dairy cows with LDA were
investigated through liquid chromatography coupled with quadrupole time of flight mass
spectrometry (LC-Q/TOF-MS)-based metabolomics, and the metabolic networks related to LDA
were constructed through metabolomics pathway analysis (MetPA). An obvious change in the
metabolic profile was reflected by significant variations in 68 plasma metabolites in
postpartum dairy cows with LDA, and these variations consequently altered 13 metabolic
pathways (histidine metabolism, tyrosine metabolism, valine, leucine and isoleucine
biosynthesis, phenylalanine, tyrosine and tryptophan biosynthesis, arginine and proline
metabolism, tryptophan metabolism, synthesis and degradation of ketone bodies, linoleic
acid metabolism, arachidonic acid metabolism, citrate cycle, butanoate metabolism, vitamin
B6 metabolism and pyrimidine metabolism). This study shows that the more
detailed information obtained by LC-Q/TOF-MS-based metabolomics and MetPA might contribute
to a better understanding of the disordered metabolic networks in postpartum dairy cows
with LDA.
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