Mechanisms of bovine corpus luteum (CL) maintenance during the second month of
pregnancy have not been adequately investigated, despite significant reproductive losses …

Circulating prostaglandin F2α metabolite (PGFM) after an oxytocin challenge was evaluated
throughout the first 2 months of pregnancy in lactating Holstein cows. On day 11, 18, and 25 …

The first postpartum ovulation after early weaning of calves (30 35 days of age) from cows is
normally followed by a short luteal phase (6 10 days) unless the animals are pretreated with …

Luteolysis in the cow depends upon an interaction between prostaglandin F 2α (PGF 2α)
and oxytocin. The objectives of our study were 1) to determine oxytocin concentrations in …

Administration of prostaglandin (PG) F2α in cattle during the mid-luteal phase (Days 8–12 of
the estrous cycle) drastically reduces the plasma progesterone concentrations and the …

In postpartum cows expected to have corpora lutea (CL) of normal (norgestomet-treated)
compared to short (control) life spans, function of the largest follicle increases after an …

Prostaglandin (PG) F2α that is released from the uterus is essential for spontaneous
luteolysis in cattle. Although PGF2α and its analogues are extensively used to synchronize …

Prostaglandin (PG) F2α secreted from the uterus is the luteolysin of the estrous cycle and is
also believed to be responsible for luteolysis in the pregnant doe at term. We have reported …

The objective was to evaluate the influence of varying plasma progesterone (P4)
concentrations throughout the luteal phase in dairy cows on PGF2α production (assessed as …

Contents Prostaglandin F2α (PGF) is considered to be the main luteolysin in cattle. We have
previously demonstrated that cortisol (Cr) suppresses PGF production in non‐pregnant …