In Kenya and neighboring regions, we have several ingredients that pigs love and thrive on. Here is how to use them:
Maize Bran/Pollard: The most common base for pig feed. It is cheap but lacks protein.
Cassava & Sweet Potatoes: Excellent energy. Warning: Raw cassava contains a toxin (cyanide). It must be sliced and sun-dried or boiled before feeding.
Cooked Bananas/Plantains: Great for finishers, but they are very low in protein.
Omena (Silver Cyprinid): Small dried fish. This is the “Gold Standard” of local protein. It makes pigs grow incredibly fast but can make the meat smell “fishy” if fed in huge amounts just before slaughter.
Cottonseed or Sunflower Cake: By-products of oil pressing. High in protein but should be limited to about 15-20% of the total diet.
Sweet Potato Vines: Pigs adore these. They are high in protein and help with digestion.
Lucerne (Alfalfa) & Desmodium: High-quality “green gold” that reduces the amount of expensive grain you need.
“Swill” refers to kitchen waste, hotel leftovers, or market scraps. It is the cheapest food available, but it is also the most dangerous.
CRITICAL RULE: If you collect leftovers from a hotel or school, you MUST boil it for at least 60 minutes at a rolling boil.
Why? Because if that hotel served pork from an infected farm, the virus lives in the scraps. Boiling is the only way to kill African Swine Fever and the eggs of internal parasites (worms) that cause “measly pork.”
Some local foods look great but have hidden “defences” that stop the pig from growing:
Raw Soya Beans: Contain a substance that stops protein digestion. They must be roasted or toasted until they smell like peanut butter.
Raw Nduma/Arrowroots: Can irritate the pig’s mouth and stomach. Always boil or ferment them.
You cannot just give a pig 100% sweet potatoes and expect it to grow. You must maintain a “Balance.”
| Ingredient | Max % of Total Daily Diet | Best Used For |
| Boiled Cassava | 50% | Finishers (makes them heavy) |
| Maize Bran | 60% | All pigs (the main “filler”) |
| Sweet Potato Vines | 20% | Sows and Growers (good for health) |
| Omena (Fish) | 5-10% | Weaners (for fast start) |
| Kitchen Swill | 40% | Finishers (if boiled properly) |
Farmer Grace lived in an area with many banana plantations. Instead of buying expensive “Finisher” feed, she collected “reject” bananas (matooke). She boiled them together with a small amount of omena and maize bran. Because she was using free bananas for 50% of the diet, her cost to produce 1kg of pork was half that of her neighbors. Her pigs were slightly slower to grow (7 months instead of 6), but her actual profit was much higher because she spent so little on “bags.”
If you have a lot of maize bran or cassava, you can “ferment” it.
Mix the feed with water in a plastic drum.
Add a little yeast or “EM1” (Effective Microorganisms).
Cover tightly for 2-3 days.
The Result: The bacteria break down the tough fibers, making it easier for the pig to digest. This “pre-digested” food makes pigs grow faster and reduces the smell of their manure.
Dry it: If it’s wet (like brewer’s waste or fruit), use it immediately or dry it to prevent mold.
Grind it: Pigs can’t digest whole maize kernels. Everything should be crushed into a coarse flour.
Clean it: Ensure there are no spoons, plastic pieces, or glass in the hotel waste.
Salt & Minerals: Local munchies are often low in salt. Always add a “Pig Maclik” or mineral premix (about 1-2 tablespoons per pig) to your local mixes.
Important things to keep in mind:
Never feed moldy food. Mold produces “Aflatoxins” which will kill your piglets and make your sows abort their pregnancies. If it smells “funky” or looks green/black, throw it away.
Transition slowly. If you start a new local food (like cassava), start with a small handful and increase the amount over 7 days so the pig’s stomach doesn’t get upset.
The Fishy Warning. Stop feeding omena (fish) 3 weeks before slaughter. This ensures the pork tastes like pork, not like fish!