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Different types of non-starch-polysaccharides (NSPs) are present in variable proportions in the cell walls of all
vegetable ingredients.
The major NSPs are:
- arabinoxylans
- cellulose
- β-glucans
- pectins
Monogastric animals don’t have the enzymes needed to breakdown NSPs, thus limiting the digestibility of feedstuffs.
NSP enzymes act on cell walls, allowing better access to nutrients for
the animal digestive enzymes, thereby decreasing intestinal viscosity
and increasing digestibility of sugars. Rovabio® is the only multisynergistic
enzyme containing at least five groups, all produced by
Penicillium funiculosum.
Rovabio® has a proven efficacy on corn DDGS thanks to its unique
combination of 19 enzyme activities that work on all major ingredients.
Corn DDGS are being formulated at
increased levels into many diets. Corn DDGS
have variable composition, but consistently
have high NSP content.
DDGS’s high NSP content (mainly arabinoxylans and cellulose)
provides substantial substrate for the xylanase
and cellulase found in Rovabio®. It is important to note that Adisseo consistently tests
for cellulase and xylanase content in every single batch.
Corn DDGS samples have been incubated with and without
Rovabio® in order to compare DM (Dry Matter) degradability
across DDGS samples. DM degradability being defined as:
(Initial weight - Final weight)*100/Initial weight
The in vitro data shows that the average increase in degradability
is +30%.
Rovabio® always led to improved degradability because
it is a combination of 19 enzyme activities.
The improvement of corn DDGS energy value has been evaluated
in a digestibility trial. In this DDGS sample,
metabolizable
energy was improved by 105 kcal/kg or 5.9%.
The trial carried out by a U.S. research facility, shows that energy
content of a standard broiler diet containing 12% DDGS can be
reduced by 130 kcal/kg if supplemented with Rovabio® without
compromising performance. In this case, Rovabio® allowed a
reduction of fat inclusion by 60% on average, which realized
substantial feed cost savings.
