More vaccines Peter Wijnen, vet at the Poultry Practice the Achterhoek (PPDA), the Netherlands, concludes that a further reduction of antibiotic use requires poultry to be better protected against bacterial pathogens. “On the one hand, this can be achieved this by applying even stricter farm hygiene regulations. On the other, vaccination offers possibilities to improve the animal’s immune system”. Wijnen sees that the pharmaceutical industry is working hard to improve the possibilities of protecting poul- try against diseases through vaccinations. “New vaccines will enter the market in the next couple of years. These are for ex- ample combination vaccines that will protect poultry against multiple diseases at the same time”. The possibilities for in-ovo
Animal health in 2030
• A healthy chicken is more resilient to disease • There will be less vets who are specialised in farmed animals, which means there will also be less poultry vets. Remaining vets will assume more managerial roles.
• The use of antibiotics will possibly disappear; feed and housing quality will gain importance.
vaccination, or vaccinating in the egg, will increase in the com- ing years, even though this is not a suitable application for all diseases. Whether in-ovo vaccination will really take off, largely depends on the costs, according to experts. “Economics also count,” says Cornelissen. The arrival of a practically usable vaccine that protects poultry against bird flu or avian influenza (AI) also seems to be a possi- bility in the future. “However, the use of such a vaccine is often strongly dependent on possible trade barriers” says Bouwhuis.
Free-range The fact that birds have increasingly more access to outdoor space, has consequences for animal welfare. “Free-range is good for the sector’s image. There are however, two sides to the health aspect. On the one hand, it means more space, fresh air, less animals per square meter and less disease pressure. On the other hand, the risk of contact with wild birds and other pathogen carriers increases. Proper hygiene management and design of the free-range areas are necessary. The location of free-range farms is also important for the prevention of disease risks. Fortunately, farms in the Netherlands are managed well, which leads to health benefits and controllable health risks” concludes Wijnen.
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76 ▶ GUT HEALTH | DECEMBER 2020
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