The researchers wanted to see if using manure flour degraded by black fly larvae could replace fish meal in the diet of local growing chickens. They tested different ratios of fish meal and manure flour in the chickens' feed. The results showed that the different diets did not significantly affect the chickens' feed consumption, weight gain, or feed efficiency. This means that manure flour degraded by black fly larvae can be a good alternative to fish meal in the diet of local growing chickens.