Breed selection in dairy production is a strategic decision that should match climate, market structure, management capacity, and long-term profitability goals. Although more than a thousand cattle breeds exist worldwide, commercial dairy systems are concentrated around a small number of specialized breeds and crossbreeding programs. This review compares major dairy breeds, functional traits, crossbreeding strategies, and genomic selection with practical implications for Turkey.
Long-term herd impact
Breed choice shapes the next 20-30 years of the herd. A poor choice may create a high-output herd with weak fertility, short productive life, and elevated health costs. Holstein dominance in Turkey exceeds 85%, but heat stress, fertility pressure, and shorter herd life have increased interest in alternative breeds and planned crossbreeding.
1. Major dairy cattle breeds
| Breed | Origin | Average milk yield (kg/lactation) | Milk fat (%) | Milk protein (%) | Body weight (kg) |
|---|---|---|---|---|---|
| Holstein-Friesian | Netherlands / Germany | 9,000-12,000+ | 3.6-3.9 | 3.0-3.3 | 600-700 |
| Jersey | Channel Islands | 6,000-8,500 | 4.8-5.8 | 3.8-4.2 | 400-500 |
| Brown Swiss | Switzerland | 7,000-9,500 | 4.0-4.3 | 3.4-3.8 | 600-700 |
| Montbeliarde | France | 7,000-9,000 | 3.9-4.2 | 3.4-3.6 | 650-750 |
| Simmental / Fleckvieh | Central Europe | 6,500-8,500 | 4.0-4.3 | 3.4-3.7 | 650-800 |
2. Detailed breed comparison
2.1 Holstein-Friesian
- Highest milk-yield potential worldwide
- Very broad genetic base and large bull selection pool
- Most advanced genomic evaluation infrastructure
- Well adapted to high-input management systems
- Lower fertility due to the genetic antagonism between output and reproduction
- More sensitive to heat stress because of large body size and high metabolic heat load
- Higher prevalence of claw and leg problems
- Shorter productive life, often around 2.5-3 lactations
- Greater sensitivity to metabolic disorders such as ketosis and displaced abomasum
2.2 Jersey
- Highest milk fat and protein concentration, giving superior cheese yield
- Smaller body size and lower maintenance energy requirement
- Generally better fertility than Holstein
- More tolerant of heat stress
- Easier calving because of smaller calves
- Lower total milk volume
- Very low market value of male calves in many systems
- Highest breed risk for hypocalcemia
- Small teat size can require better milking-equipment compatibility
2.3 Brown Swiss
- Moderate to high milk yield with strong protein performance
- Desirable κ-casein BB frequency for cheese yield
- Strong feet and legs with longer herd life
- Good adaptation to mountainous and warmer environments
- Already familiar in highland regions of Turkey
- Slower milking speed in some lines
- Later sexual maturity than more specialized dairy types
- Usually lower peak milk than elite Holstein herds
3. Functional trait comparison
| Trait | Holstein | Jersey | Brown Swiss | Montbeliarde | Simmental |
|---|---|---|---|---|---|
| Milk volume | Very high | Moderate | Moderate-high | Moderate | Moderate |
| Fat and protein | Moderate | Very high | High | High | High |
| Fertility | Lower | Good | Good | Good | Moderate-good |
| Longevity | Lower | Moderate | Good | Good | Good |
| Heat tolerance | Lower | Better | Better | Moderate | Moderate |
| Claw and leg health | Weaker | Moderate | Strong | Good | Good |
4. Crossbreeding strategies
Systematic crossbreeding has expanded rapidly over the last 15 years in dairy systems. Through heterosis, fertility, health, and longevity improve while the reduction in milk volume remains limited when the program is designed correctly (Buckley et al., 2014).
- ProCROSS: VikingRed × Montbeliarde × Holstein in rotational use
- Heterosis retention: about 86% can be maintained continuously
- Expected outcome: milk yield may fall 5-8%, but fertility can improve 15-25%, herd life 20-30%, and health costs 15-20%
- Net profitability: often reported as 100-200 USD/cow/year better than pure Holstein
- Common simpler combinations: Holstein × Jersey and Holstein × Brown Swiss
- Caution: F1 animals often perform best; heterosis declines in later generations without a planned rotation
5. Breed-selection criteria for Turkey
| Farm type | Recommended breed / strategy | Reason |
|---|---|---|
| High-input intensive dairy | Holstein or structured Holstein-based crossbreeding | Best when management, cooling, nutrition, and health control are strong |
| Cheese-oriented milk market | Jersey, Brown Swiss, or component-focused crossbreeding | Higher milk solids and cheese yield |
| Harsh climate / highland systems | Brown Swiss or dual-purpose compatible lines | Better adaptation, feet and leg strength, and robustness |
| Farms with fertility and longevity problems | Planned crossbreeding such as ProCROSS or Holstein × Brown Swiss | Functional traits often improve faster than with pure-breed selection alone |
6. Genomic selection and the future
Genomic direction of dairy breeding
Since genomic evaluation became widely established after 2009, the rate of genetic progress has roughly doubled because young bulls can be selected much earlier. Functional traits such as fertility, health, and longevity now carry more weight in breeding indices, which supports more balanced cows rather than maximum milk alone (VanRaden, 2020).
The practical future is not a single universal breed. Instead, the most profitable systems will combine climate adaptation, market requirements, herd health goals, and genomic tools to choose either the most suitable pure breed or the most suitable crossbreeding program.
7. References
- Buckley, F., et al. (2014). Crossbreeding: Implications for dairy cow fertility and survival. Animal, 8(s1), 122-133.
- Heins, B. J., et al. (2012). Survival, lifetime production, and profitability of Normande × Holstein, Montbéliarde × Holstein, and Scandinavian Red × Holstein crossbreds versus pure Holsteins. Journal of Dairy Science.
- VanRaden, P. M. (2020). Symposium review: How to implement genomic selection. Journal of Dairy Science, 103(6), 5291-5301.
- Weigel, K. A., & Barlass, K. A. (2003). Results of a producer survey regarding crossbreeding on US dairy farms. Journal of Dairy Science, 86(12), 4148-4154.