Cookie use on MRCVSonline
We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive all cookies.
If you would like to forward this story on to a friend, simply fill in the form below and click send.

Your friend's email:
Your email:
Your name:
 
 
Send Cancel

New insights into antibiotic resistance in pigs
Information on the development of resistance in E.coli in relation to antibiotic treatments in commercial pigs is scarce.
Researchers assess resistance to E.coli in relation to antibiotic treatments

A study has revealed new insights into the development and persistence of antibiotic resistance in pigs.

Writing in the journal Preventative Veterinary Medicine, researchers describe an assessment of antibiotic resistance in Escherichia coli (E.coli) isolated from pigs during their lifespan.

Between 2014 and 2016, the team followed 406 pigs from 29 commercial breeding herds from birth to slaughter and documented their antibiotic treatments. They collected faecal samples from the pigs once while suckling, once after weaning and three times during fattening. They also collected faecal samples from the pigs’ dams around the time of farrowing.

Researchers found that 264 animals from 19 breeding herds were treated with an antibiotic at least once in their lifetime (65 per cent). Beta-lactams, tetracyclines and colistin were the antibiotics used most frequently. They also found that resistance was higher for beta-lactam, tetracyclines or macrolide-treated pigs, compared to animals that had not received treatment.

In pigs not treated with the respective antibiotics, the probability of isolates being resistant to ampicillin, tetracycline or azithromycin changed significantly over time, the authors note, with the probability increasing at weaning.

In European countries, 88 per cent of pigs are treated with antibiotics at least once during their lifetime. But information on the development of resistance in E.coli in relation to antibiotic treatments in commercial pigs is scarce.

‘Reducing antibiotic resistance in sows might lead to a lower level of beta-lactam or macrolide-resistant E. coli among their progeny,’ the authors conclude. ‘To preserve treatment options for bacterial infections, antibiotic use should be restricted to necessary cases.’

Become a member or log in to add this story to your CPD history

New 'DoggyLottery' to raise funds for rescue centres

News Story 1
 A new 'DoggyLottery' to raise funds for dog rescue centres in the UK will launch on Saturday (4 July). Every four weeks, five different rescue centres will be connected to the lottery, providing much-needed funds - particularly during COVID-19 - and providing vital online exposure.

A weekly game costs £1.50 and entrants will have the chance of being one of 20 guaranteed winners. A massive 60 per cent of the raised funds will go towards the dog rescue centres, more than double that donated by leading lottery companies to charitable causes.

To find out more and play the lottery, visit www.doggylottery.co.uk  

Click here for more...
News Shorts
International Cat Care appoints new head of veterinary division

International Cat Care (ICC) has announced the appointment of Nathalie Dowgray as head of the charity's veterinary division.

Nathalie, who is an RCVS advanced practitioner in feline medicine, will lead the International Society of Feline Medicine (ISFM) and a play key role in advancing knowledge and research in feline medicine.

Claire Bessant, iCatCare's chief executive said: "We're absolutely delighted to be welcoming Nathalie to the charity. She brings a depth and breadth of feline expertise and understanding which fits perfectly with the charity's work and development, and her enthusiasm for cats is infectious."