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Download Treatments of infectious bovine hoof diseases
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Treatments of infectious bovine hoof diseases Dr. Matt Breed Dr. Chuck Guard Department of Population Medicine and Diagnostic Sciences, College of Veterinary Medicine, Cornell University Infectious Foot Diseases Foot Rot • Fusobacterium necrophorum & Bacteriodes melaninogenicus Interdigital Dermatitis • Dichelobacter nodosus Infectious Foot Diseases Digital Dermatitis, Hairy Heel Warts, Mortellaro • Cause not proven yet but spirochetes strongly incriminated Foot Rot Common in environment and manure Usually requires injury to interdigital skin Sudden onset, acute disease Interdigital dermatitis Chronic infection of interdigital skin Moist caseous exudate, sour odor Skin responds by hypertrophy May spread to heels and undermine heel horn Digital dermatitis Worldwide spread in last 25 years Highly contagious within herd Poor immune response to infection Hair follicle primary site of infection in normal skin TREATMENT What are we trying to treat? • DISEASE • LESION • LAMENESS Does treatment of disease improve lameness in a herd? TREATMENT Do we treat the hoof lesion and/or something else? • Environment, management, nutrition etc Lesion Treatments Treatment Type Footrot Interdigital dermatitis Digital dermatitis Topical Antibiotic + Disinfectant +++ +++ Systemic Antibiotic +++ - - + +++ +++ Foot baths Antibiotic disinfectant Other areas of importance: Regular correct foot trimming Clean, dry, comfortable animals Other areas of importance: Counting lame cows: • Same number as the farmer • Which groups • What lesions/diseases present • Specific area on farm causing lameness Questions