DairyTalk 272: Hormones, Cycles, and Timing: How Reproductive Control Really Works - by Helmut Demmelhuber

This article explains the biological foundations of the estrous
cycle in dairy cows and how hormonal mechanisms can be
strategically used to improve reproductive performance. It
focuses on the interaction of progesterone, estrogen, and GnRH,
as well as the role of follicle development and the corpus
luteum. Common synchronization protocols are outlined,
demonstrating how insemination timing can be precisely
controlled. The key message is clear: reproductive success is not
a matter of chance, but the result of biological understanding,
precise timing, and disciplined herd management. With comments on
a "Hoard´s Dairyman"-article (January 25th, 2026) by Joseph C.
Dalton: https://hoards.com