Commercial Poultry Farming in Nigeria

Natural Cross-Ventilation Design: The Southern zone of Nigeria faces high relative humidity (>80%) and temperatures averaging 32°C.

• Shed Orientation: Houses must be built in an East-West orientation to prevent direct sunlight from entering the shed.

• Width Limits: Limit the house width to 10–12 meters (33–40 feet). Open-sided walls must be covered with wire mesh to allow natural cross-ventilation. High roof pitches (3.5m eaves height) with open ridge vents allow hot air to rise and escape.

• Stocking Density: Limit densities in open-sided houses to 8 to 10 birds/m² in the dry season to prevent heat stress and smothering.

Alternative Raw Materials: Volatile corn and soy prices require the use of local agricultural byproducts:

• Palm Kernel Cake (PKC): Abundantly available byproduct of palm oil mills. High in fiber (15-18%) and low in lysine. PKC can be included up to 10% to 12% in broiler finisher diets and up to 15% in layer feeds, provided it is supplemented with commercial beta-mannanase enzymes to break down cell wall mannans.

• Cassava Root Meal: Can replace corn up to 20% of the diet. However, cassava must be peeled, washed, and toasted/fermented to reduce toxic hydrocyanic acid (HCN) levels below 10 ppm.

• Brewers Dried Grains (BDG): Capped at 5% to 8% due to its high fiber and bulk density.

Tropical Vaccine Protocols: Flocks in West Africa face high challenges from velogenic Newcastle Disease and Gumboro:

• Newcastle Disease (ND): Intraocular live vaccine (ND Intraocular / Clone 30) at Day 1, followed by ND LaSota booster at Day 21 via drinking water. In layers, an oil-inactivated ND+IB vaccine is administered at 16 weeks before point-of-lay.

• Infectious Bursal Disease (IBD / Gumboro): Hot-vaccination schedules require intermediate-plus Gumboro strains administered at Day 10-12 and repeated at Day 21 via clean drinking water.