Thanks beverly, you're really helpful
. it sounds easy, I'll try this.It said there are many advantages to give them fermented feed, easy digest, good absorption and improve immunity. At present I got 8 golden pheasant(5 male, 3 Female ), 6 lady amherst(2M,4F), 5 silver pheasant(3M,2F), 6 reeves' pheasant(2M, 4F), a pair of Mandarin, 7 blue peafowl(3M,4F), 2 white peafowl(2F), 11 guineas(how to check if they are Male or Female, anyone knows?), 40 chickens, 9 ducks and 8 wild geese and 7 domesticated geese