Evaluation of Rhizopus oligosporus Yeast Supplementation on Growth Performance and Nutrient Digestibility in Nursery Pigs

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2012-01-01
Authors
van Sambeek, Dana
Weber, Thomas
van Leeuwen, Johannes
Kerr, Brian
van Leeuwen, Johannes
Gabler, Nicholas
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Abstract

The growth and performance of 24 nursery pigs fed a fungal cultivation of Rhizopus oligosporus (RO) was evaluated in a 28-day feeding and digestibility study. Nursery pigs average start weight of 5.62 ± 0.35 kg were provided ad libitum access to a corn-soybean diets containing three levels of RO, 0, 10, or 20%. Diets were formulated to be isocaloric and isolysinic, and contained the digestibility marker titanium dioxide. There was no difference in pig performance based on dietary inclusion of RO fungus. However, total tract DE was improved when feeding RO. Altogether, these data indicate that Rhizopus oligosporus cultivated on distillers stillage and bioproducts can be used in nursery swine diets with no negative effects on performance.

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ASL R2724, Civil Construction and Environmental Engineering
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