Álvaro García
Crossbreeding dairy cows to beef sires has rapidly evolved from a calf-value strategy into a major component of reproductive and genetic management on many dairy farms. The combination of sexed dairy semen on genetically superior females and beef semen on cows not needed for replacements has improved calf value while accelerating genetic progress within the herd. Angus, Limousin, and Simmental remain among the most widely used beef breeds in U.S. dairy herds because of their favorable balance of calving ease, growth performance, feed efficiency, and carcass merit.
While considerable research has evaluated the reproductive, economic, and carcass advantages of beef-on-dairy crossbreeding, far less attention has been given to a fundamental question: should these calves be fed differently than either their dairy or beef parents?
Genetics drive nutritional requirements
Nutritionists routinely formulate diets based on expected growth rates, body composition, and feed efficiency. Because genetics influence all three, it is reasonable to expect that beef-on-dairy calves may not respond identically to feeding programs designed for either pure dairy or pure beef cattle.
Holsteins have traditionally been valued for their ability to convert feed into milk rather than muscle. Beef breeds such as Angus, Limousin, and Simmental, on the other hand, have been selected for decades for growth, carcass yield, feed efficiency, and meat quality. When these genetics are combined, the resulting offspring often express growth, carcass, and body composition characteristics that fall between the two parental breeds.
This creates a challenge for nutritionists. Most current nutrient requirement systems provide recommendations for dairy calves, dairy replacement heifers, or beef cattle. Very few provide guidance specifically for beef-on-dairy animals.
What research tells us about performance
Although direct nutrition studies remain limited, performance data consistently show that beef-on-dairy calves differ from pure dairy animals.
Numerous studies have reported higher average daily gain, improved feed efficiency, superior dressing percentage, and greater saleable meat yield in beef × dairy crosses compared with pure Holsteins. These advantages are particularly evident when continental breeds such as Limousin or Simmental are used as terminal sires.
Research summarized by Berry (2021) also indicates that many beef-on-dairy crosses consume feed differently than pure Holsteins during the finishing period, suggesting differences in nutrient partitioning and growth biology.
The implication is straightforward: if animals grow differently, deposit tissue differently, and utilize nutrients differently, their nutritional needs may also differ.
Table 1. Production and carcass characteristics of the three most common beef-on-dairy crosses in the United States.
Trait |
Angus × Dairy |
Limousin × Dairy |
Simmental × Dairy |
Calving ease |
Excellent |
Moderate |
Moderate |
Growth rate |
High |
Very High |
Very High |
Feed efficiency |
Good |
Excellent |
Excellent |
Marbling |
Excellent |
Moderate |
Good |
Muscling |
Moderate |
Excellent |
Excellent |
Carcass yield |
Good |
Excellent |
Very Good |
Typical market appeal |
Quality grade |
Yield grade |
Balanced performance |
Potential nutritional priority |
Energy and marbling |
Lean growth |
Growth and muscling |
Angus × Dairy
Angus remains the dominant beef-on-dairy sire in the United States because of its excellent calving ease and strong market acceptance. Angus crosses generally exhibit greater marbling and earlier physiological maturity than continental breeds. Studies evaluating beef quality have shown greater intramuscular fat deposition in Angus-Holstein crosses compared with Limousin-Holstein or Simmental-Holstein cattle.
From a nutritional standpoint, these cattle may benefit from feeding programs that optimize marbling development while maintaining efficient growth. Their combination of calving ease, carcass quality, and market demand has made Angus crosses the benchmark against which many other beef-on-dairy programs are evaluated.
Limousin × Dairy
Limousin genetics are associated with increased muscling, larger ribeye area, and excellent feed conversion. Limousin-Holstein cattle often produce leaner carcasses with greater saleable meat yield than pure dairy cattle.
These animals may prioritize lean tissue accretion over fat deposition, potentially increasing the importance of metabolizable protein supply during growth. Their ability to efficiently convert nutrients into lean muscle growth has made Limousin crosses particularly attractive in systems focused on carcass yield and feed efficiency.
Simmental × Dairy
Simmental crosses often occupy an intermediate position between Angus and Limousin. They combine favorable growth rates, carcass weight, and muscling while maintaining acceptable carcass quality.
As a result, their nutritional requirements may differ from both Angus and Limousin crosses, further supporting the need for more refined feeding recommendations.
Current gaps in nutritional research
Despite rapid adoption of beef-on-dairy programs, surprisingly little research has evaluated whether nutrient requirements should differ among beef-on-dairy crosses.
Most feeding programs continue to use recommendations developed for either Holstein steers or conventional beef cattle. This approach works reasonably well, but it may not fully capture the biological differences created by crossbreeding.
Current evidence suggests that beef-on-dairy animals:
- Grow faster than pure dairy cattle
- Convert feed more efficiently
- Produce different carcass compositions
- Partition nutrients differently between muscle and fat deposition
Yet we still know relatively little about their optimal energy-to-protein ratios, amino acid requirements, mineral nutrition, or finishing strategies. Consequently, many beef-on-dairy cattle are still being fed according to recommendations developed for animals that are genetically different from the ones standing in today’s feedlots.
Future opportunities for precision nutrition
The rapid expansion of beef-on-dairy systems presents an opportunity for the next generation of nutrition research.
Future studies should determine whether:
- Angus × dairy calves benefit from different finishing strategies than Limousin × dairy calves.
- Continental crosses require greater protein density during growth.
- Breed-specific nutrient recommendations can improve feed efficiency and carcass value.
- Precision nutrition can further enhance the economic advantages already observed with beef-on-dairy programs.
As genetic selection becomes increasingly sophisticated, nutrition may become the next frontier for unlocking the full potential of beef-on-dairy cattle.
Take-home messages
Beef-on-dairy crossbreeding has already transformed the economics of calf production on many dairy farms. However, the nutrition programs used to feed these animals have not evolved at the same pace.
Current evidence suggests that beef-on-dairy cattle differ biologically from both dairy and beef parent breeds in ways that influence growth, feed efficiency, and carcass composition. Whether those differences justify breed-specific nutritional recommendations remains largely unanswered.
What is clear, however, is that genetics influences how nutrients are partitioned and utilized. As beef-on-dairy populations continue to grow, developing nutrition programs tailored to their unique biology may represent one of the greatest opportunities to improve profitability across the dairy-beef supply chain.
The full list of references used in this article is available upon request.
© 2026 Dellait Knowledge Center. All Rights Reserved.
