Nutrition

News 2295 views last update:6 Aug 2012

Rovabio enzyme profitable in broiler ddgs-diets

Rovabio Excel, a versatile enzyme from Adisseo, has a proven efficacy on wheat and corn distillers dried grain with solubles (DDGS) on broilers. In trials it was able to metabolizable energy; about 5.5 % for corn DDGS and 7.5% for wheat DDGS.

The significant levels of cellulase and xylanase in the enzyme product allow for breakdown of the increased amounts of cellulose and arabinoxylans present in these biofuel coproducts.

Indeed, when including 15% corn DDGS on a corn-soybean base diet, levels of arabinoxylans and cellulose are increased by about 20% and 30% respectively (25% and 20% for wheat DDGS).

This efficacy has been demonstrated throughout in vitro and in vivo trials. In vitro data show that degradability of dry matter is significantly increased when using the enzyme.

On wheat DDGS, the increase of degradability ranges from +8 to +43 %, and on corn DDGS, from +16 to +62 %.

The lowest uplift can be explained by the use of industrial carbohydrolases during the production process of DDGS, reducing further improvement potential with feed enzymes. However, Rovabio Excel increases degradability thanks to its combination of 19 enzyme activities.

Energy increase
Digestibility trials carried out on broilers at CERN, the research centre of Adisseo, show that metabolizable energy is increased by 105 kcal/kg for corn DDGS and 160 kcal/kg for wheat DDGS.

A growth trial run in USA (Southern Poultry Research) demonstrates that the metabolizable energy content of a broiler diet containing 12% DDGS can be reduced by 130 kcal/kg (or 60kcal/lb) with the enzyme mix, allowing an important decrease of fat inclusion in feed and thus substantial feed cost savings.

French trial
Another growth trial conductedin France by Metayer et al. (2009) showed that the addition of Rovabio Excel in a broiler diet allows the increase of wheat DDGS inclusion from 10 to 15% without compromising performances.

The use of versatile enzymes thus further helps utilizing alternative raw materials in diets of monogastrics, such as poultry.

Related website: Adisseo

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