Induced prostaglandin release alters steroid concentrations but not pregnancy survival in cows.

Domestic Animal Endocrinology
S T ReeseK G Pohler

Abstract

Embryonic mortality (EM) is a major factor limiting reproductive efficiency in cattle, and despite negative connotations related to reproductive performance, prostaglandin F2α (PGF2α) is capable of being released by the uterus by Day 30 of gestation. Therefore, the objective was to evaluate differences in PGF2α release after an oxytocin challenge between cows with high circulating concentrations of pregnancy-associated glycoproteins (PAGs) vs low PAG because of the association of increased PAG concentrations with pregnancy success. At Day 30 of gestation, pregnant cows were divided into oxytocin treatment (OT; n = 13) and control (CON; n = 12) groups. Treatment cows were further subdivided by circulating PAG concentration (high PAG, n = 7; and low PAG, n = 6). Blood samples were collected every 30 min beginning 1 h before oxytocin administration and continuing for 4 h. Prostaglandin F2α metabolite (PGFM), progesterone, estradiol-17β (E2), and PAG concentrations were quantified. The peak concentration of PGFM occurred 2 h after oxytocin injection in treatment animals and returned to baseline levels by 4 h. No correlations were observed between PAG and PGFM, progesterone, or E2 concentrations (P > 0.05). There was no difference i...Continue Reading

References

Sep 1, 1990·Journal of Reproduction and Fertility·T J ParkinsonG E Lamming
Dec 1, 1985·Biology of Reproduction·M Lafrance, A K Goff
Jan 1, 1973·Journal of Animal Science·R P Wettemann, H D Hafs
Nov 4, 2000·Journal of Animal Science·P J BridgesE K Inskeep
Feb 28, 2002·Trends in Immunology·Sarah G HarrisRichard P Phipps
Feb 24, 2006·The Veterinary Journal·C W WeemsR D Randel
Sep 9, 2006·Journal of Dairy Science·A De Vries
Nov 3, 2007·Reproduction in Domestic Animals = Zuchthygiene·G GáborR G Sasser
Dec 22, 2007·Journal of Dairy Science·D A Pape-ZambitoR S Kensinger
Feb 1, 2015·Reproduction, Fertility, and Development·M G DiskinD A Kenny
Dec 23, 2019·Animal Reproduction Science·S T ReeseK G Pohler

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