A 100-Year Review: Practical female reproductive management

Area of Science:

• Reproductive biology and animal science, focusing on dairy cattle management.

Background:

• Early 20th-century understanding of mammalian reproduction was limited.
• Foundational discoveries in reproductive physiology paved the way for modern dairy cattle management technologies.

Purpose of the Study:

• To review the evolution of reproductive management technologies in dairy cattle.
• To highlight advancements in artificial insemination, genetics, and herd management practices.

Main Methods:

• Review of historical and current reproductive technologies in dairy cattle.
• Analysis of advancements in hormonal treatments, pregnancy diagnostics, estrus detection, semen technologies, data management, and genomics.

Main Results:

• Technological progress, including artificial insemination (AI) and genomics, has driven genetic gains in dairy cattle.
• Innovations such as hormonal induction, advanced diagnostics, estrus detection aids, sex-sorted semen, and computerized records have transformed reproductive management.
• Management strategies have adapted to increasing herd sizes and confinement housing, emphasizing group management and expert teams.

Conclusions:

• Continuous technological innovation is crucial for dairy cattle reproductive efficiency.
• Future reproductive management will likely integrate robotic milking and novel, yet-to-be-developed technologies.
• Effective management teams are essential for implementing and evaluating reproductive protocols in large-scale dairy operations.