How can cure diarrhea in peacocks?

It depends on what caused the peafowl's diarrhea:

1) They will produce loose poop when frightened.

2) The kind of food they eat may cause it (too rich, too fatty, or too wet), so changing their feed to drier, lower fat, and lower protein may cure it.

3) Internal parasites can also cause diarrhea in peafowl, especially when the droppings look like white paint.

A) Mix 5cc's of Ivermectin pour-on (5mg/ml strength) into a gallon of water.

B) Shake well.

C) Make this their only water source for 3 days.

D) Do not allow cats, dogs, etc. to drink this!