Blood Spot DNA Testing (Coffee Filter & Paper)

Here’s a clean, reliable way to collect and preserve a sample using the coffee filter method:

1. Start Clean

• Use clean hands or gloves
• Have fresh scissors or nail clippers
• Avoid cross-contamination (wipe tools with alcohol between birds)

2. Collect the Sample

• Clip the very tip of the nail (quick) just enough to get a drop of blood
• Let 1–2 drops fall directly onto the coffee filter
• Do NOT smear, let it absorb naturally

3. Let It Fully Dry

• Air dry for at least 10–15 minutes
• Keep it in a clean, dry area
• Avoid stacking or touching other samples while wet

4. Label Clearly

• Write directly on the filter or bag:
  • Bird ID
  • Breed/pen (if needed)
• Do this before or immediately after collection

5. Store Properly

• Once fully dry:
  • Place in a place in labeled baggies. 
    
• Keep samples cool, dry, and out of sunlight

6. Ship Smart

• Ship as soon as possible
• Tracking your sample IS recommended 
• Avoid extreme heat or humidity during transit

Common Mistakes to Avoid

Too little blood (faint samples = weak DNA)

• Smearing or layering blood
• Sealing before fully dry (causes mold/degradation)
• Cross-contamination between birds