Effect of treatment with long-acting injectable progesterone and/or hCG three days after TAI on circulating progesterone profile, luteal dynamics and fertility of high-producing dairy cows.
de Souza EDF; E Silva LO; Vieira LM; Ortolan Sayeg MDV; Mingoti RD; Abreu LA; Baruselli PS · 2026 · Theriogenology
WASTE classifies this as Negative / Null Result Report · AI classification, approximate
The study found no significant effect — useful as a negative control or null benchmark for your own design.
Abstract (excerpt)
The aim was to evaluate the effects of administering long-acting injectable progesterone (iP4) and/or hCG 3 days after timed artificial insemination (TAI) on luteal dynamics, circulating progesterone (P4) concentrations, and fertility…
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Metadata source: Europe PMC · DOI 10.1016/j.theriogenology.2025.117796