Page 16 - Australian Pork Newspaper
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Demedication in pig production
IN June 2017, the Stand- ing Committee on Vet- erinary Medicinal Prod- ucts in the EU voted to withdraw marketing authorisations for veteri- nary medicines contain- ing zinc oxide, giving member states five years to enact the restrictions within their own juris- dictions.
The European Food Safety Authority, mean- while, has called for dra- matic reductions in the use of copper in piglet diets.
Both steps might be seen as examples of an evolving ‘demedication’ concept, which proposes going beyond simply the replacement of antibiot- ics and instead embracing approaches that include
the prevention of illness and the support of animal wellness through non- medical means.
And both would have significant effects on swine production, which will lose some key tools it has relied on to control health challenges in the absence of antibiotic solu- tions.
To understand how de- medication will change swine production, Feedin- fo News Service spoke to Lallemand Animal Nutri- tion product manager for swine applications David Saornil.
[Feedinfo News Service] One of the major reasons some customers turn to antibiotics or ZnO is to deal with diarrhoea in weaning piglets – what other options are available to combat this?
[David Saornil] “As we are moving away from antimicrobials, it is im- portant to take one step backandlookatthewhole picture.
First, nutritional strate- gies are being developed to reduce the need to ap- ply antibiotics in feed, strategies including the reduction of the protein or calcium level and the ap- plication of certain types and levels of fibre in feed.
Then feed additives can represent an additional tool.
At Lallemand Animal Nutrition, we have dec- ades of experience of microbial ecosystems management and we be- lieve that by balancing the piglet gut microbiota, as well as the microbial eco- systems of the animal’s environment, we can have a virtuous approach to piglet health.
In particular, the most documented solutions ap- pear to be pre- and probi- otics that can leverage the gut microbiota.
In this area, the live yeast strain S. cerevisi- ae var. boulardii CNCM I-1079 is one of the most documented probiotics in swine, with proven effects on microbiota regulation, intestinal structure and natural defences, with consequences on piglet performance and welfare post-weaning.
More recently, we have developed and started to document in piglets a synergistic alliance of specific inactivated yeast strains: YANG.
Trials have shown that YANG can also contrib- ute to help piglets deal with the post-weaning challenge, especially in difficult situations.
Beyond these existing solutions, the demedica- tion concept is an impor- tant driver of our internal and collaborative research activities.
Lallemand is proud to participate in several re- search projects bringing together leading scien- tists and industry actors involved in the animal feeding and pig breeding sides, in order to study the microbiological and ge- netic bases of piglet sen- sitivity at weaning.
An improved under- standing of piglets’ mi- croflora before and after weaning should help iden- tify new ways to adapt piglet production systems to a reduction of antibi- otic use.
We are also strongly involved, together with academic partners, in the development of a dedicat- ed colonic fermentation model to study piglet in- testinal dysbiosis around weaning and assess solu- tions to limit or control its occurrence.”
[Feedinfo] Are many customers also using live yeasts or yeast derivatives together with an antimi- crobial solution such as ZnO or antibiotics during the weaning period? Does this detract from the ef- ficacy of these solutions?
[David] “This depends on the country and local regulation.
☛ continued P17
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Page 16 – Australian Pork Newspaper, May 2018
Lallemand Swine Applications Product Manager David Saornil.

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