The nutrient requirements of the fast growing filamentous fungi Neurospora crassa to convert animal waste into an edible product containing high amounts of protein were assessed by selectively excluding nutrients from supplemental solutions of Vogel salts and trace elements added to the waste. When individual chemical components were omitted from the supplemental solutions, varying levels of growth were observed. However, there was no statistically significant difference. Similar results were obtained when groups of selected compounds were omitted from the supplemental solutions. Overall, these results suggest that the nutritional requirements for sustainably growing Neurospora crassa on animal waste may not be as stringent as anticipated. Therefore, commercial implementation of the Neurospora crassa project may be more achievable
