concept, animals manipulated by humans, nest intervened by scientists, mass injection into birds, antibiotics in animals

abuse additive anabolic animal animals antibiotic antibiotics artificial bird birds business chicken closeup concept doctor drug dry easter egg excessive farmer food genuine health healthy humans illegal industrialization injecting injection intervened manipulated mass medical medicine minerals nest nneedle nutrition overdose pharmacy poison scientists shot studio substances super supplements synthetic vaccination vaccine vet veterinarian veterinary vitamins zoology