Beef cattle

Beef x Dairy Matings: Opportunities to Enhance Value and Genetic Evaluation Systems

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Abstract

The widespread adoption of sex-sorted (sexed) female dairy semen has transformed genetic management in the dairy sector. Producers can now efficiently generate replacement heifers with a relatively small proportion of inseminations, freeing the majority of mating opportunities for terminal crossbreeding with beef sires. Concurrent contraction of the U.S. beef cow herd and resulting supply-demand dynamics have created strong market pull for high-quality beef à— dairy calves. In 2025, more than 2.5 million beef à— dairy feeder cattle-strategically produced within the dairy sector-are expected to enter the U.S. beef supply chain. This integrated beef-on-dairy system has markedly increased domestic beef semen sales, substantially improved dairy calf revenue, and contributed to lower break-even costs for fluid milk production. Beyond current economic benefits, further genetic gains are achievable through 1) Development of customized, sector-specific selection indexes for beef sires used on dairy females, 2) Targeted breeding of beef bulls that optimally complement dairy cow genetics, and 3) Selection of dairy sires not only for milk production but also for superior carcass and end-product merit in their terminal cross progeny. The intensive management of dairy-origin calves-from individual hutches and group housing through conventional feedlot finishing-provides a unique and powerful platform for capturing phenotypic data. Traits such as calving ease, birth weight, growth rate, feed efficiency, carcass characteristics, meat quality, animal health, and welfare can be recorded systematically and at scale. This rich dataset creates unprecedented opportunities for accelerated genetic improvement of beef à— dairy cattle, native beef populations, and for validating genomic predictions across diverse environments.

Keywords: 2026

How to Cite:

Weaber, R., (2026) “Beef x Dairy Matings: Opportunities to Enhance Value and Genetic Evaluation Systems”, World Congress on Genetics Applied to Livestock Production Digital Archive 2026(1): 2294532. doi: https://doi.org/10.31274/wcgalp.24322

Rights: 1