which fungus specifically do we discuss

for example Aspergillus fumigatus is a major problem in birds in Nigeria especially where mold feeds is given to birds

I see.

What kind of treartment do you use for birds with A. fumigatus?

I think the most serious problem for vet. medicine is 1) dermatophytosis 2) opportunistic dermatomycosis, including Malassezia infections, 3) deep mycoses in tropic regions.

Mycoses can affect not only mammalians and birds, but also reptiles, amphibians and so on.

Unfortunately there is no treatment