Newcastle Disease at a Ratchaburi Egg Farm Airofog U260 ULV Disinfected 12 Houses Overnight

The Day Livestock Department Called Uncle Ae

Uncle Ae's egg farm in Photharam district, Ratchaburi, raises 80,000 layer hens across 12 houses, supplying a central-region supermarket chain. In October 2025 the local livestock office called: PCR positive for Newcastle Disease in House 7.

The order: disinfect House 7 and the surrounding 12 houses within 24 hours or cull every bird on the farm. Uncle Ae knew that failure meant THB 25 M in capital lost and 90 days flagged as an infected zone.

The Poultry Diseases Thai Farmers Fear Most

Newcastle Disease, Highly Pathogenic Avian Influenza (H5N1), Infectious Bronchitis, Mycoplasma — all spread by air, faeces dust, water, and farm dust.

High bird density means one infected case can spread through a house in 48 hours. Disinfection with Glutaraldehyde, Peracetic Acid, or Quat must cover floor, walls, ceiling, nesting boxes, feeders, and air at the same time.

The Damage Path

1. 80,000 hens × THB 280 = THB 22.4 M capital at risk.
2. 200,000 eggs/day × THB 4.5 × 30 days = THB 27 M of lost revenue.
3. Carcass-disposal costs by regulation.
4. Next year may fail audit → off the vendor list.
5. 18 staff out of work.

Disinfection Methods That Work — and Don't

Backpack sprayer: 50–80 L per house, wet, no time for 24 hours.
Power sprayer: floods the floor, birds slip.
Diesel thermal fogging: oil residue, birds gasp.
External spray vehicle: cannot enter closed houses, misses ceilings.

What the farm needed was U260 fogging Glutaraldehyde + Quat in empty houses before re-stocking, and dilute Peracetic Acid in stocked houses where it is safe to use around live birds.

Why Uncle Ae Chose the U260

Uncle Ae ordered from WHD and a unit was on site in six hours with 25% Glutaraldehyde and 5% Peracetic Acid.

Plan: 1) Cull House 7 per livestock order. 2) U260 fogs Glutaraldehyde + Quat in empty House 7 — 3 L of solution over 30 minutes. 3) Houses 6 and 8 with live birds: dilute PAA 1:200 (safe for animals), 15 min/house nightly. 4) Remaining houses on the same nightly routine for 14 days.

Result: no further infected houses, audit pass at day 30, supermarket deliveries resume, farm retained 90% of capital.

ULV in Farm Biosecurity

U260's 5–50 micron droplets contact airborne virus and coat walls, floor, ceiling, feeders, and nesting boxes — a 360° in-house disinfection of 1,000 m² in 25 minutes.

With FDA- and DLD-approved Peracetic Acid, the farm disinfects with birds present — no relocation, no egg-production hit.

10 Reasons Livestock Farms Choose Airofog U260

1. 1,000 m² in 25 minutes.
2. Animals can remain with safe chemistry.
3. Floor + walls + ceiling in one pass.
4. Works with Glutaraldehyde, Quat, PAA, Iodine.
5. Meets Livestock biosecurity standards.
6. Poultry, swine, cattle, shrimp farms.
7. Quiet — birds stay calm.
8. Economical — 3 L per 1,000 m².
9. 1-year warranty, on-farm service.
10. WHD — 065-556-6294, LINE @whd268.

Before vs After — Ratchaburi Farm

Before: Newcastle in one house, order to disinfect 12, THB 50 M exposure.

After (30 days): No spread, full biosecurity audit pass, supermarket deliveries resumed.

Uncle Ae — Farm Owner

"Thirty years of poultry farming and I hit Newcastle every 4–5 years. This is the first time I didn't have to cull the whole farm. The U260 paid for itself in lives saved."

— Uncle Ae, Ratchaburi egg farm

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Call: 065-556-6294 | LINE: @whd268

• All WHD articles

• WOAH — Newcastle Disease