Various What Are DNA & Tissue Sampling Devices for Dairy Cattle?
By Various
Last reviewed: December 2025
DNA and tissue sampling devices include ear notchers, tissue sampling units (TSUs), and collection kits designed to obtain genetic material from cattle for...
DNA sampling has become routine on many dairy operations as genomic testing guides breeding and management decisions. Quality sample collection is essential for test success.
Tissue Sampling Units (TSUs) are the most common collection method. These devices punch a small tissue sample from the ear while simultaneously applying an RFID ear tag. The tissue is captured in a collection tube pre-filled with preservative. TSUs combine identification and sampling in one step.
Ear notchers collect tissue from the ear margin. These older-style devices are simple and inexpensive but don't integrate with tagging. Samples require separate handling and may have lower acceptance rates at laboratories.
Blood cards collect blood spots on specially treated paper for DNA extraction. These require a blood draw but avoid ear tissue damage. Some laboratories prefer blood samples for certain tests.
Sample handling after collection affects success rates. Tubes must be properly sealed, labeled accurately, and shipped according to laboratory requirements. Temperature exposure, moisture, and shipping delays can degrade samples.
Laboratory selection matters. Different labs offer different test panels, turnaround times, and pricing. Compatibility between sampling devices and laboratory requirements should be verified before purchasing supplies.
Key Features
- Tissue Collection: Captures tissue sample from ear or other site
- Sample Preservation: Pre-filled tubes maintain sample integrity
- Tag Integration: TSUs combine sampling with tag application
- Accurate Labeling: Matching sample ID to animal record
- Shipping Compatibility: Samples packaged for laboratory requirements
Advanced Features
- Bulk Processing: High-volume collection for large groups
- Digital Tracking: Electronic sample tracking through laboratory
- Multi-Test Panels: Single sample for multiple test types
Ideal For
Farm Types: All dairy operations using genomics, Heifer development operations
Competitive Advantages
What sets What Are DNA & Tissue Sampling Devices for Dairy Cattle? apart from alternatives:
- Enables genomic-based breeding decisions
- Combines sampling with tag application
- High success rates with proper technique
- Minimal animal stress
- Supports multiple test types
Pricing Information
Here is the pricing information for What Are DNA & Tissue Sampling Devices for Dairy Cattle?:
TSU systems: $50-$200 for applicator; sample tubes: $3-$10 each; testing fees separate
Pricing Model: Per-sample supplies plus any equipment
Bulk discounts often available for high-volume testing
ROI & Value Proposition
Understanding the return on investment for What Are DNA & Tissue Sampling Devices for Dairy Cattle?:
Payback Period: Immediate for heifer selection decisions. Test costs ($35-50) recovered within first year through improved selection accuracy.
Implementation & Setup
How to implement What Are DNA & Tissue Sampling Devices for Dairy Cattle? on your dairy operation:
Implementation Timeline: Immediate implementation; technique training: hours
Training & Support
Training and support options available for What Are DNA & Tissue Sampling Devices for Dairy Cattle?:
Support Channels:
Buying Considerations
Important factors to consider when evaluating What Are DNA & Tissue Sampling Devices for Dairy Cattle?:
Evaluation Questions
Key questions to consider when evaluating What Are DNA & Tissue Sampling Devices for Dairy Cattle?:
- Which genomic tests do we need and which lab offers them?
- Are our sampling supplies compatible with chosen laboratory?
- What is our expected volume and frequency of testing?
- How will genomic results be integrated into our breeding program?
- What training do staff need for consistent sample quality?
Market Overview
Market Size: The dairy genomics sample collection market exceeds $85 million annually in the U.S., with tissue sampling units (TSUs) representing approximately 70% of all sample collection devices used.