ARS conducts glycerin studies in poultry
Researchers at the ARS Swine Odor and Manure Management Research Unit in Ames, Iowa and Iowa State University examined the effect of crude glycerin in pig and poultry diets.
Poultry diets study
In the poultry study, both layers and broilers were fed different levels of crude glycerin as part of the ration. No significant differences were found among the 4 groups in the feeding trail when comparing feed consumption, egg production and egg weight. Feeding studies with boilers showed similar positive results.
While the initial data indicates crude glycerin is an excellent source of energy and can be used without harming animal performance, there is more to learn such as how to handle glycerin in the feed mill and possible limiting factors from residual methanol and salts left in the glycerin after biodiesel production.
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