AUTHOR=Oosthuizen Nicola , Goncalves Lucas M. , Burato Samir , Smith Molly S. , Harvey Kelsey M. , Lamb Graham Cliff , Fontes Pedro L. P. TITLE=Comparison of different GnRH compounds on fertility outcomes in ovulation synchronized and presynchronized beef cows JOURNAL=Frontiers in Animal Science VOLUME=6 YEAR=2025 URL=https://www.frontiersin.org/journals/animal-science/articles/10.3389/fanim.2025.1502984 DOI=10.3389/fanim.2025.1502984 ISSN=2673-6225