In pigeons and performing birds, PrimaLac has been shown to colonize the intestinal tract with beneficial bacteria, crowding out pathogenic E. coli and Salmonella and reducing infections. PrimaLac probiotic use also creates a beneficial acidic gastrointestinal environment and produces more disease-fighting immunoglobulin proteins
Due to improved immune function, young bird mortality after weaning and viral infection in younger birds is also reported at lower rates. Fertility, egg production and bird growth improved. Pigeons also produce firmer droppings and improved feather quality.