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Poultry Probiotic Cuts its Coat to Beat Bacteria
    L. johnsonii colonies with different coat thickness (Nikki Horn, IFR)
  • Lactobacillus johnsonii (Kathryn Cross, IFR)

News & Views

Poultry Probiotic Cuts its Coat to Beat Bacteria

A strain of probiotic bacteria that can fight harmful bacterial infections in poultry has the ability to change its coat, according to new findings from the Institute of Food Research. The probiotic is currently being taken forward through farm-scale trials to evaluate how well it combats Clostridium perfringens – a cause of necrotic enteritis in poultry and the second most common cause of food poisoning in the UK.

The researchers at IFR, which is strategically funded by the Biotechnology and Biological Sciences Research Council, had previously found that the probiotic Lactobacillus johnsonsii, when given to young chicks, prevents the colonisation of C. perfringens. Now they have found that the probiotic bacteria have the ability to alter their coat. They speculate that this could be one way in which the probiotic outcompete C. perfringens.

Understanding the role of the slime capsule coat will inform the commercial development of this strain as a preventative treatment for C. perfringens infection in poultry, especially in regard to how the probiotic is stored and produced. Through the technology transfer company Plant Bioscience Ltd, the strain has been patented and is now in large-scale farm trials to assess its efficacy. As these bacteria have previously been used in the food chain and are considered safe for human consumption, this probiotic strain could become new way of controlling C. perfringens.

As there is a growing pressure to reduce the use of antibiotics in farming, new products are needed to maintain animal welfare standards, reduce the huge costs of necrosis in poultry and help keep our food safe.

Study published in PLOS ONE
 


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