I have tried the vaseline on the wattles and combs on my roosters. It does seem to work but you have to be vigilant about it. It does wear off quickly and especially when the rooster dust bath, they rub it right off.
The wattles seem to suffer the most on the rooster as they get them wet while drinking.
The wattles seem to suffer the most on the rooster as they get them wet while drinking.