Efficacy of Intramammary Antibiotic Therapy for Treatment of Clinical Mastitis Caused by Environmental Pathogens
作者： J.S. Cullor , C.A. Holmberg , W.M. Guterbock , A.L. Van Eenennaam , R.J. Anderson
DOI: 10.3168/JDS.S0022-0302(93)77682-1
关键词: Group A 、 Bulk tank 、 Amoxicillin 、 Milking 、 Antibiotics 、 Medicine 、 Aseptic processing 、 Mastitis 、 Immunology 、 Veterinary medicine 、 Cephapirin
摘要: For three California dairy herds with bulk tank SCC <200,000/ml, twice daily milking, and no mastitis vaccine, 254 quarters mild clinical were randomly assigned to groups. Group A (n = 74) was treated 62.5 mg of intramammary amoxicillin every 12 h for milkings. C 75) 200 cephapirin two O 105) 100 units intramuscular oxytocin or Aseptic pretreatment quarter samples revealed 94 (37%) coliforms, 65 (26%) environmental streptococci, 34 (13%) other bacteria, 61 (24%) isolate on bovine blood agar plates. Contagious pathogens not isolated. Clinical cure (return milk normal) bacterial (absence primary pathogen isolated pretreatment) assessed at milking 8 d 20 after initial treatment. No difference existed in (67.6, 67.7, 66.7%) (43.9, 55.0 49.1%) rate among rates did differ when grouped by etiology, but than streptococci coliforms lower group O.
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