Improving performance Naturally Some products are just more effective than others! Highly recommended for showing, breeding, rearing and moultingFor adding to waterThe active ingredient in Aviherb is widely known as a natural alternative to anti-biotics.Anti bacterial / Antifungal properties.Can help promote good digestion and help improve performance and condition.Use every day to maintain a healthy gut and promote superb condition.May help produce perfect droppings.May help improve numbers reared in the nest.Can be used in conjunction with other Carr's Natural Improvers for Cage Birds.May help improve fertility especially when used with Carr's Fertility Gold.Used by top showmen and judges. Add to drinking water - full instructions supplied with product.