The widespread use of sexed semen has dramatically altered calf demographics. The article reveals a substantial decline in the proportion of male dairy calves born, dropping from 49.1% in 2021 to a projected less than 37% by 2026. This precision breeding technology allows dairy farmers to confidently predetermine calf sex, optimize the use of high Economic Breeding Index (EBI) bulls, and consistently achieve acceptable pregnancy rates, thus enhancing genetic progress and farm efficiency.

A direct consequence of this shift is the increased use of beef semen, which is now more readily facilitated by the strategic application of sexed semen. This has resulted in a greater number of highly saleable beef-cross calves being born from the dairy herd. This integrated approach allows milk producers to diversify their income streams, capturing value from both milk and beef, thereby positively impacting overall dairy economics.

The article also touches upon forward-thinking strategies aimed at accelerating genetic gain within the dairy sector. New methods are being developed to generate high EBI male calves specifically for breeding purposes. These advanced techniques include the innovative use of oocyte donors and fertilization with semen from elite sires, pushing the boundaries of genetic improvement and herd performance.