Many Kenyan poultry farmers start out strong. Their first flock thrives, chicks grow well, and profits look promising. But by the second or third cycle, things begin to fall apart. Growth rates slow, hens lay fewer eggs, feed conversion worsens, and mortality climbs. When troubles arise, many farmers are quick to blame hatcheries or feed suppliers. In reality, the problem is often much closer to home: poor cleaning and disinfection practices between flocks.
The poultry house itself becomes a health hazard when hygiene is neglected. Used litter is particularly dangerous — just one gram of old litter can harbour millions of bacteria, ready to infect the next batch of birds. Without thorough removal and treatment, pathogens cycle from one flock to the next, accumulating over time and making diseases increasingly difficult to bring under control.
The remedy is straightforward, but it must be done correctly. Hosing down a poultry house with water alone is not enough to break the disease cycle. Effective hygiene requires both a detergent and a disinfectant working together. Detergents lift and remove organic matter — the dirt, droppings, and feathers coating every surface — while disinfectants eliminate the harmful microorganisms that linger behind.
A thorough clean-out between flocks should follow a structured step-by-step process. Start by stripping out all old litter and disposing of it well away from the farm. This should be followed by a high-pressure wash of the entire house structure and all equipment. Water lines deserve special attention, as algae and bacteria readily build up inside them. Once everything has been washed, apply detergent and scrub all surfaces before finishing with a spray of suitable disinfectant across every area. Foot dips at farm entrances should be installed and changed regularly to block pathogens from being tracked in on boots. A dedicated programme targeting rats and flies must also be maintained as part of any serious biosecurity plan.
One step that many farmers overlook is allowing the house to rest for between seven and fourteen days before the next flock arrives. This downtime gives remaining pathogens a chance to die off without a live host, ensuring incoming birds enter a genuinely clean environment.
The business case for proper hygiene is clear. A clean poultry house produces healthier birds, supports faster growth, improves egg production, lowers mortality rates, and cuts spending on veterinary medicines. For Kenyan farmers looking to stay competitive and protect their margins in a tough market, rigorous hygiene between flocks is not an optional extra — it is the very foundation of a profitable operation.
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