Application Development Records¶

Real-world technical case studies from SENO's laboratory testing operations — with experimental design, data tables, and outcomes.

Case Study 1: Racing Loft Respiratory Outbreak Investigation¶

Background¶

A racing pigeon loft (300 birds) in Southeast Asia reported a 15% drop in race performance over 4 weeks. Clinical signs: mild conjunctivitis, occasional sneezing, reduced appetite. No mortality.

Investigation Design¶

Objective: Identify causative pathogen(s) using SENO's 11-pathogen disease panel.

Sampling Protocol: - 20 birds sampled (oral + cloacal swabs combined) - 10 symptomatic + 10 asymptomatic (within same loft) - Samples shipped in nucleic acid stabilization solution (2–8°C)

qPCR Results (Ct Values)¶

Interpretation¶

Primary Diagnosis: PiHV outbreak with secondary PiCV and Mycoplasma co-infections. No asymptomatic carriers detected — suggesting recent introduction.

Intervention & Outcome¶

Key Takeaways¶

• 80% PiHV detection in symptomatic birds confirmed outbreak etiology
• 40% PiCV co-infection suggests immunosuppression
• Early intervention within 2 weeks prevented spread to the rest of the loft
• Cost: $180 for 20-bird panel + $120 for follow-up retest = $300 total vs potential loss of 50+ birds

Case Study 2: Parrot Breeding Colony — PBFD Elimination¶

Background¶

A European parrot breeding facility (120 pairs, 240+ birds — African Greys, Macaws, Cockatoos) had experienced 3 confirmed PBFD deaths over 2 years. They sought to achieve PBFD-free certification.

Methodology¶

Phase 1: Prevalence Screening - All 247 birds tested by qPCR (feather samples) - CT threshold: < 38 = positive

Phase 1 Results

Ct Values of Positive Birds:

Phase 2: Intervention¶

Phase 3: Re-Evaluation (8 Months Post-Isolation)¶

Outcome¶

PBFD-free certification achieved within 8 months. Total testing cost: ~€3,200. Estimated value of breeding stock preserved: €85,000+.

Case Study 3: Pigeon DNA Fingerprinting for Theft Recovery¶

Background¶

A Middle Eastern racing pigeon owner had 5 top-performing pigeons (total insured value: $45,000) stolen from a locked loft. Three months later, 4 pigeons matching the description appeared at a regional race under a different owner's name.

Genetic Profiling¶

Method: 12 microsatellite markers + gender marker in 3 multiplex reactions

Pre-Theft Profiles (from previous year's parentage verification):

Comparison with Recovered Birds¶

Match Probability (Random Individual): < 1 in 2.5 × 10¹⁵

Legal Outcome¶

• Full match at all 12 loci for 3 of 4 recovered birds
• 4th bird had no pre-theft profile but matched parentage of known stock
• Court accepted DNA evidence; birds returned to rightful owner
• Theft conviction obtained
• Result within 5 working days of sample receipt

Case Study 4: Canary Breeding Program — Sex Ratio Optimization¶

Background¶

A Dutch canary breeder (200 breeding pairs, color mutations: red factor, yellow, white) needed accurate sex identification at 4–6 weeks to optimize pairing for the upcoming breeding season.

Pre-DNA Testing Method¶

• Visual sexing based on behavioral cues at 8–12 months
• Error rate: ~30% for inexperienced keepers
• Juveniles indistinguishable until first breeding season

Testing Protocol¶

• 350 juvenile canaries tested (5–7 chest feathers each)
• CHD PCR with P2/P8 primers
• 2.5% agarose gel, 120V, 45 min

Results¶

40% Improvement in Breeding Output¶

Financial Impact¶

Case Study 5: Avian Influenza Surveillance — Seasonal Screening Program¶

Background¶

A Japanese racing pigeon organization (22 lofts, 1,500 total birds) implemented SENO's quarterly AIV screening program to comply with racing permit requirements and protect against HPAI outbreaks.

Seasonal Screening Results (Year 1)¶

H9N2 Positive Birds (Q2, Q4)¶

Program Cost-Benefit¶