title: Metabolic changes in cows with or without retained fetal membranes in transition period.
abstract: The purpose of the study was to evaluate the effect of retained fetal membranes (RFM) on serum minerals and energy- and protein-related metabolites in dairy cows at a herd with a recent history of fatty liver syndrome. Forty-seven multiparous Holstein cows were selected during transition period. Nine cows had RFM longer than 24 h after calving. Blood samples were obtained on prepartum days 21 and 7 and postpartum days 7 and 21. We used repeated measure procedure of anova to evaluate the effect of RFM on serum metabolites. Cows with RFM had significantly higher concentrations of beta-hydroxybutyrate, non-esterified fatty acids and triglycerides after calving, but had lower concentrations of cholesterol during transition period. The concentrations of serum albumin and blood urea nitrogen were also significantly lower in RFM-affected cows than non-affected ones after parturition. Our results suggested that negative energy balance (NEB) postpartum was associated with RFM in dairy cattle. However, our findings did not reveal a cause and effect relationship with respect to the role of NEB as a possible risk factor for RFM.
authors.affiliation: Department of Clinical Sciences, School of Veterinary Medicine, Ferdowsi University of Mashhad, PO Box 1793, Mashhad 91775, Iran. haseifi@ferdowsi.um.ac.ir
authors.forename: H A
authors.initials: HA
authors.lastname: Seifi
authors.forename: B
authors.initials: B
authors.lastname: Dalir-Naghadeh
authors.forename: N
authors.initials: N
authors.lastname: Farzaneh
authors.forename: M
authors.initials: M
authors.lastname: Mohri
authors.forename: M
authors.initials: M
authors.lastname: Gorji-Dooz
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D019540:Area Under Curve; D002417:Cattle; D002418:Cattle Diseases / Q000097:blood* / Q000378:metabolism; D015331:Cohort Studies; D002149:Energy Intake; D004734:Energy Metabolism / Q000502:physiology; D005321:Extraembryonic Membranes / Q000473:pathology*; D005260:Female; D008903:Minerals / Q000097:blood*; D049590:Postpartum Period / Q000097:blood; D011247:Pregnancy; D011248:Pregnancy Complications / Q000097:blood / Q000378:metabolism / Q000662:veterinary*; D011506:Proteins / Q000378:metabolism
chemical_list: D008903:Minerals; D011506:Proteins