Hi! My 4.5 month old female duck is displaying mating behavior and is now mating with her brothers. I started adding free choice oyster shell and have been feeding them a maintenance ration of Albers waterfowl food with 16% protein. Do I need to feed the female a layer feed or something different than maintenance? Or just feed her other protein sources like minnows or good quality cat food? Also, is now the time I should make sure they have 14 hours of light, or should I wait a couple of weeks? Thank you!