Partner Insight: Challenge the norm when it comes to mastitis therapy
It is nearing 10 years since the UK livestock industry began a concerted effort to monitor and measure antibiotic use on-farm as part of the battle against AMR (antimicrobial resistance).
Boehringer Ingelheim Animal Health
06 August 2024
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4 min read
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With the World Health Organisation declaring that AMR is one of the top 10 global public health threats facing humanity, working collaboratively to ensure antibiotic use is ‘as little as possible but as much as necessary' is now part of everyday vet: farmer decision making.
"We are all familiar with selective dry cow therapy which has rationalised the use of antibiotic tubes at dry off," says vet Andrew Biggs from the Vale Vet Group in Devon. "I feel it is better to say antibiotic use at dry off is now targeted at cows where it will bring benefit. As a consequence of this targeted approach, antibiotic use at dry off is significantly lower1 .
"But, to future proof antibiotic use in dairy cows, we now need to turn our attention to mastitis in the lactation phase," he adds. "Ensuring intramammary antibiotics are used responsibly, we also need to adopt an evidence-based approach to clinical mastitis therapy."
Antibiotic treatment should be directed where it's needed
Mr Biggs points out: "Mastitis is an inflammatory response by the cow which is most often triggered by an infection but, like many infections, the inflammation can often extend beyond the duration of the infection so tubing until the clots have gone is not justified. We are all familiar with the common symptoms of mastitis - a swollen and uncomfortable udder, clots in the milk, possibly a cow off her feed in severe cases. NSAIDs (non-steroidal anti-inflammatory drugs) regulate the cow's immune response to relieve pain, reduce inflammation and reduce clinical signs."
Mastitis during lactation is caused by a range of bacteria, categorised as environmental or contagious, depending on their origin and behaviour. Contagious pathogens – such as Staph. aureus or Strep. agalcatiae – tend to be persistent and can spread from cow-to-cow. Decades ago, they were the main cause of mastitis, but since the Five Point Plan was widely adopted, these pathogens are now well controlled in most herds, and national cell counts are much lower as a result.
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