In this case antibiotics should only be used based on the diagnosis of the prescribing veterinarian. Depending on their precise causes, antibiotics may be one tool in their treatment. The three major production diseases in dairy cows are reproductive disorders, mastitis and lameness. AMR is an increasing problem in human and veterinary medicine and government authorities are now engaged to address it. Even when a drug eliminates the target bacterial pathogen, non-target bacteria are exposed to it and these may develop and propagate AMR. Such reports help add to the emerging knowledge on AMR, and contribute to government and international policies to control AMR.Ī growing public health issue is the impact of antibiotics on non-target bacteria in the animal’s body. Where an antibiotic does not work as intended, veterinary practitioners should file a report of lack of efficacy of the drug concerned to the HPRA or to the company responsible for marketing the product. However, because under field conditions most antibiotic use in cows takes place without prior susceptibility testing of the bacteria in question, it can be difficult to know for certain. In the treated animal, resistance may be suspected where the antibiotic has not worked. This may occur in the target pathogen itself, as well as in other bacteria. Resistance to antibiotics leads to a phenomenon known as antimicrobial resistance (AMR). Antibiotics are subject to prescription control the veterinary practitioner is best placed to prescribe the most appropriate antibiotic for the disease in question. Treatment of respiratory and other infectionsĪntibiotics behave in precise ways when they enter the animal’s bloodstream some are distributed evenly throughout the body, while others are concentrated in specific locations e.g. Based on their mode of action they are classified into a number of different classes as follows: Some share similar characteristics to others and are active against similar pathogens, while other classes have very specific properties and may be active against different organisms. HPRA Article - Use of Antibiotics in Dairy Cows BackgroundĪntibiotics are medicines that have anti-bacterial properties.
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