ArticleVeterinary and animal science2026
Effects of extending interval between presynchronization and breeding protocols and prostaglandin F2α administration before breeding protocol on reproductive performance of Holstein dairy cows during summer.
Article in Veterinary and animal science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Small size of follicle, which may be due to summer, and high progesterone (P4) could hamper the ovulatory response to gonadotropin-releasing hormone (GnRH) at the beginning of GnRH-based protocols for estrus synchronization (GnRH-1), thus decreasing fertility. Accordingly, the objective of this study was to evaluate the effects of two-day extension in interval between presynchronization (Ovsynch) and breeding (Heatsynch) protocols and administration of prostaglandin F2α (PGF
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