The Lallemand Animal Nutrition R&D team participated in the 13th Digestive Physiology of Pigs (DDP) Congress, in Kliczków, Poland, May 19-21, 2015.
Around 400 people, mostly international
researchers, attended this highly-regarded scientific event. This was the
opportunity for Lallemand Animal Nutrition to establish its position in swine
nutrition and confirm the company’s commitment to drive animal research
forward.
Two studies, conducted in partnership with IFIP (French Swine
Institute) were presented during poster sessions. These studies bring tools and
answers to the field of pig nutrition and help us better understand and back-up
the role and effects of our antioxidant and probiotic solutions.
Oxidative stress in weaned piglet and
antioxidant strategies
The first study(1) aimed at building an
effective model of oxidative stress in weaned piglets, since weaning is a key
stressful period in swine production. This model was then validated with an
antioxidant supplementation: vitamin E, organic selenium ALKOSEL® and
superoxide dismutase (SOD)-rich melon pulp concentrate MELOFEED®.
It was shown that heat stress and
vaccination, used as stress triggers, were associated with different specific
biomarkers of oxidative stress. Both were linked to reduced zootechnical
performance. The antioxidant combination supplementation had a positive effect
on stress biomarkers and performance. This oxidative stress model received much
interest from participants at the symposium and will certainly prove useful in
the future to evaluate nutritional strategies to prevent or limit oxidative
stress. The study also further confirms the interest of appropriate antioxidant
strategies during stress periods.
The second study(2) aimed at better
describing the sow’s digestive microflora. While increasing data suggest that
rearing practices and feed composition have a strong impact on sow and piglet
productivity and welfare through modulation of the sow’s gut microbial
populations, the sow microbiota structure and functions are still poorly known.
This study presents the first description of both bacterial and archaeal
taxonomic composition along the sow gastrointestinal tract (GIT).
Lallemand Animal Nutrition microbiology
experts applied high throughput DNA sequencing techniques in order to assess
the abundance, diversity and richness of bacteria and archaea populations in
the different compartments of the sow GIT. It was concluded that repartition of
bacteria and archaea differed along the sow GIT, probably linked with substrate
availability and physico-chemical conditions.
More needs to be elucidated, in particular
through functional studies of the various microbial populations and the impact
of dietary and physiological factors. However, this study already suggests
that, contrarily to what is often admitted, fecal microflora may be not so
representative of microbial ecosystem in the colon. This kind of study will
also be very valuable to better understand the effects and modes of action of
probiotics solutions.
Organized every third year since 1979, the DDP
symposium presents the most cutting-edge research in digestive physiology of
the pig as well as some very applied research efforts related to proper
research methodologies, intestinal health, and nutrient digestion/absorption. More info HERE.
Notes
(1). F. Barbé, D. Guillou, E. Chevaux, Y.
Rousselière, E. Royer. Development of an oxidative stress model in weaned
piglets highlighting plasma biomarkers specificity to different stress
inducers. Poster presentation at the 13th Digestive Physiology of Pigs
Congress, Kliczków, Poland, May 19-21, 2015
(2). L. Guillot, S. Comtet-Marre, D. Guillou,
N. Quiniou, V. Demey, M. Castex, E. Forano, F. Chaucheyras-Durand. The
microbiota along the sow gastro-intestinal tract: composition and abundance.
Poster presentation at the 13th Digestive Physiology of Pigs Congress,
Kliczków, Poland, May 19-21, 2015
Visit the Lallemand site HERE.
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