VeRUS Feline Life Advantage Diet Chicken Meal and Brown Rice Formula Dry Cat Food Features and Benefits: QUALITY CHICKEN PROTEIN. Our USA grown, antibiotic free, cage free chicken is raised without the use of added hormones or growth efficiency drugs for a clean healthy source of protein. Federal regulations prohibit the use of hormones in chicken raised in the USA Innovative Freeze Dried Live PROBIOTICS for enhanced digestion and immune support; retaining over 90% of its value through the shelf life of the food. Typical pet foods use dead strains and list their addition rat