On Thursday 13th March, we will be visiting a chicken farm in Othaya, in Nyeri County,  that is halving its feed costs by growing azolla water weed and rearing black soldier flies. As cheap, and sometimes free, sources of protein,  Azolla water weed has 19%-35% protein content, while black soldier flies have an equal amount, meaning they can replace more expensive proteins, such as soybeans, omena, fishmeal, and commercial feeds.