Johnson's Veterinary Poultry ACV Conditioner With apple cider vinegar. A traditional natural supplement to help maintain good health, condition and good egg laying. Johnson's Poultry ACV Conditioner is a natural organic supplement to help promote and maintain good health, condition and egg laying; it also helps to encourage good digestion and its antibacterial properties help to deter internal parasites. It is unfiltered/unpasterised and contains natural vitamins, minerals and trace elements. Directions; For adult birds - give approx 10-20ml for litrre of drinking water for one week per month Chicks & Growers - give approx 5ml for litre of drinking water for one week per month