Dairy Cattle Breeds and Breeding Notes

Introduction to Dairy Cattle Breeds

  • Milk Production Trends
    • Increase in production per cow over the past 50 years due to advancements in:
    • Breeding techniques
    • Nutrition
    • Sanitation practices
    • Management strategies
    • Genetic selection and artificial insemination (AI)

Major Dairy Cattle Breeds

  • Overview
    • Six primary dairy breeds based on milk yield and composition:
    • Holstein
    • Ayrshire
    • Brown Swiss
    • Guernsey
    • Jersey
    • Red and White Holstein
    • Variation in milk yield and components:
    • Different breeds show variations in fat and non-fat solids.

Individual Breed Characteristics

  • Ayrshire

    • Physical Traits: Strong, robust; well-shaped udder; clean cut head.
    • Color: Light to deep cherry red, mahogany, brown, or combinations with white.
    • Average Weight: 1200 lbs (cow); 1850 lbs (bull).
    • Milk Yield: 15,418 lbs; Fat: 3.9%, Protein: 3.2%.
    • Fun Fact: Known for agreeable behavior with other herd mates.

  • Brown Swiss

    • Physical Traits: Strong and vigorous; suitable for cheese production.
    • Color: Solid brown, varying from light to dark; black nose with white ring.
    • Average Weight: 1400 lbs (cow); 2000 lbs (bull).
    • Milk Yield: 18,074 lbs; Fat: 4.1%, Protein: 3.4%.
    • Fun Fact: Sometimes kept as pets due to temperament.

  • Guernsey

    • Physical Traits: Medium-sized; hardy and docile.
    • Color: Fawn with white markings.
    • Average Weight: 1100 lbs (cow); 1600 lbs (bull).
    • Milk Yield: 15,474 lbs; Fat: 4.5%, Protein: 3.4%.
    • Fun Fact: Milk has a golden-yellow tinge due to β-carotene content.

  • Jersey

    • Physical Traits: High milk fat percentage; good calving ease.
    • Color: Various shades of fawn; black muzzle.
    • Average Weight: 1000 lbs (cow); 1500 lbs (bull).
    • Milk Yield: 17,302 lbs; Fat: 4.8%, Protein: 3.6%.
    • Fun Fact: Can produce 10 times their weight in milk during lactation.

  • Holstein

    • Physical Traits: Prominent dairy breed; distinct size and markings.
    • Color: Typically black and white; some red and white.
    • Average Weight: 1500 lbs (cow); 2200 lbs (bull).
    • Milk Yield: 23,791 lbs; Fat: 3.7%, Protein: 3.1%.
    • Fun Fact: Each Holstein has unique spot patterns.

  • Red and White Holstein

    • Physical Traits: Similar to Holsteins; distinct genetics.
    • Average Weight: 1400 lbs (cow); 2100 lbs (bull).
    • Milk Yield: 20,716 lbs; Fat: 3.7%, Protein: 3.0%.
    • Fun Fact: Often carry Holstein genetics with reddish coats.

Evaluation of Dairy Cattle

  • Importance of Evaluation
    • Proper evaluations improve herd life and productivity.
    • Conformation relates to long-term productivity emerging from proper structure.
  • Key Evaluation Criteria
    • Structural Features: Legs, udders, and bones are critical for production efficiency.

Dairy Cow Unified Score Card

  • Purpose
    • Unified scoring system for evaluating dairy cow traits:
    • Udder: 40 pts
    • Dairy Strength: 25 pts
    • Feet & Legs: 20 pts
    • Frame: 15 pts
  • Scoring Criteria Breakdown
    • Frame: Assesses skeletal structure for proper shape and support.
    • Dairy Strength: Evaluates openness, strength, and capacity.
    • Feet and Legs: Focus on mobility and soundness for longevity.
    • Udder: Assess its depth, width, attachment, and overall capacity.

Dairy Herd Improvement Association (DHIA) Records

  • Function
    • Utilize records to analyze individual cow's milk production potential under herd conditions.
  • Standardized Lactation Records
    • Consider non-genetic factors that may influence lactation performance:
    • Milking frequency, age at calving, and environmental conditions.

Breeding Dairy Cattle

  • Selection Criteria
    • Combine genomic and phenotypic criteria for selection.
    • Focus on health, production, and efficient dairy systems.
  • Heritability
    • Critical for enhancing the genetics of traits, particularly milk production among Holsteins.

Conclusion

  • Continuous improvement in dairy cattle breeding, selection, and raising processes are vital for sustainable milk production.
  • Focused breeding and evaluating breed characteristics enable better management and output in dairy farming.