it is a great pleasure to hear your advice. I appreciate it.

I am not sure if I understood regarding poultry layer pellets with anticcocidial additives. Is it safe to give swans poultry layer pellets with this kind of additives?

Regarding feeding juveniles (5 months old), can I give them poultry layer pellets as well along with cracked corn? I found other poultry pellets used for broilers that have a protein percentage of around 20%. is it good for juveniles this sort of pellets?

As to tell female and male black swans at age 5-months old wouldn't be possible to notice a special feature at the beak, feathers, eyes, body size, or any clue other than a DNA exam?. Cygnets hatched from the same clutch 5 months ago and need to pick male and female.

thanks so much again for your worthy help,
Julian