Health Multiplier Brewer's Yeast for Ducks, Chicken Probiotic, Niacin for Ducks, Chicken Vitamins, Chick Probiotics, Baby Chick Food, Duckling Supplies, Duck Niacin Supplement (Case of 32 Jars){Healthy Flock} Proper nutrition and a well balanced microbiome can help your poultry defend against dangerous pathogens. Brewer's Yeast with Probiotics, Prebiotics and Niacin can help achieve exceptional health in your flock {Beautiful Feathers} Contains essential amino acids and vitamins needed to grow and maintain luxurious feathers all year long. One of your critical chicken coop accessories for the molt {Top Grade Eggs} Healthy Chickens and Ducks