1. Introduction
Fungi are continuous threat to livestock feeds of economic
importance such as compound feeds.
They may affect feed either directly by causing mechanical
damage throughout feeding, or indirectly by secreting andspreading mycotoxins such as aflatoxins in the case of aflatoxinproducing fungi. The common fungal genera contaminating compound feeds in South Africa are those belonging to the Fusarium,Penicillium and Aspergillus genera. The predominant Aspergillus
species are Aspergillus flavus and Aspergillus parasiticus elaborating