The Zero-Tolerance Protocol for African Swine Fever (ASF)

Understanding the Enemy: How ASF Moves

The African Swine Fever (ASF) virus is incredibly tough. It can live in the soil for weeks, in frozen meat for years, and on the boots of a visitor for days. It doesn’t fly through the air; it travels on things.

On People: It hitches a ride on shoes, clothes, and hands.
On Pigs: It comes in with “new” piglets you just bought or via contact with wild pigs (warthogs/bushpigs).
On Plates: It is commonly found in “Swill” (kitchen waste) – especially if that waste contains scraps of infected pork.

Gate 1: The No Visitors Rule (People Management)

The biggest threat to your pigs is actually your human friends. In our culture, it is polite to show guests around the farm. In commercial pig farming, this “politeness” is a business risk.

The Perimeter Fence: You must have a strong fence that keeps people (and stray dogs/pigs) out. This is not just a boundary; it is a bio-barrier.
The Footbath (The Holy Water of the Farm): Every entrance to the pig unit must have a footbath – a shallow trough filled with a strong disinfectant (like Thalassa, Virkon S, or even high-strength bleach).
- The Rule: No one – not even you – steps into the unit without soaking their boots for at least 30 seconds.
Dedicated Farm Clothes: If possible, have a pair of gumboots and an overall that never leave the pig unit. When you go to the market and come back, you must change your clothes and wash your hands before touching your pigs.

Gate 2: The Quarantine Rule (New Pig Management)

When you buy new “Starting Line-up” pigs, never mix them with your existing herd immediately. They might look healthy but could be carrying a disease in the “incubation” stage.

The 21-Day Rule: Keep new pigs in a separate “Isolation Pen” at least 10 meters away from your main house for 21 days. If they are still healthy and eating well after three weeks, only then can you introduce them to the rest of the herd.
Avoid Village Boars: Never take your sow to a neighbor’s boar for mating. If that boar has a virus, your sow will bring it home. Use Artificial Insemination (AI) or keep your own boar.

Gate 3: The No Raw Swill Rule (Feed Management)

Feeding pigs kitchen waste (swill) is a common way to save money, but it is the number 1 way ASF spreads in Africa. If a hotel serves pork from an infected pig, and you take the leftovers to your farm, your pigs will die.

The Boiling Protocol: If you must use swill, it MUST be boiled vigorously for at least an hour to kill the virus.
The Better Option: Avoid swill entirely and stick to formulated feeds or local grains to sleep better at night.

Biosecurity Checklist: The Daily Do’s

Action	Frequency	Why?
Refresh Footbath	Every 2-3 days	Sunlight and dirt make disinfectant lose its power.
Control Rodents	Constant	Rats and mice can carry diseases from one farm to another.
Clean Equipment	After every use	Shovels and wheelbarrows must be washed after moving manure.
Staff Training	Weekly	Ensure your farm hand understands that “one mistake = no job” because there will be no pigs left.

Case Study: The Social Disaster in Ruiru

Farmer Kamau had 50 healthy pigs. One Sunday, his brother visited from a distant village where pigs had started “dying mysteriously.” Kamau proudly walked his brother through the pens. They didn’t use a footbath because “it’s just family.” Three days later, Kamau’s best sow stopped eating and developed purple spots on her ears. Within 10 days, all 50 pigs were dead. Kamau lost over 1.5 million KES in investment and potential sales because of one 10-minute walk.

The Lesson: The virus does not care about family ties. Treat every person (including yourself) as a potential carrier.

The Purple Ear Warning: Identifying ASF

While you cannot cure it, you must recognize it to stop the spread. Look for:

High Fever: Pigs huddle together even when it’s hot.
Purple Patches: Skin on the ears, belly, and snout turns bluish-purple.
Vomiting and Diarrhea: Often bloody.
Sudden Death: Pigs that looked fine in the morning are dead by evening.

If you suspect ASF: Immediately stop all movements in and out of the farm. Do not sell the meat (this spreads the disease to the whole country). Call the vet and bury the carcasses deep in the ground with lime.

Important things to keep in mind:

Biosecurity is a mindset, not just a structure. It only works if you follow the rules 100% of the time. 99% is not enough.
Keep your farm Boring. You don’t want it to be a hangout spot. The less foot traffic, the safer your “bank account” is.
Bird-Proofing: Small birds can drop droppings into feed troughs that carry diseases. Use wire mesh to keep them out of the pig house.