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Digestible and Metabolizable Energy Values for Pigs of Diets Based on High-Test Molasses or Final Molasses and Sugar¹

Instituto de Ciencia Animal, Habana, Cuba

Abstract

Eight intact male pigs were used in a double 4x4 Latin square design to determine the and ME contents of diets containing 75.5% high-test molasses or combinations of 55.5/20, 39.5/36 and 23.5/52% final molasses and crude sugar. The remaining 24.5% of the diet was fish meal, saccharomycers yeast, minerals and vitamins A and D.

N-retention and DM digestibility, the latter ranging from 90.6 to 92.2%, were unaffected by dietary variables. DM content of feces was highest (46.9%) with the high-test molasses diet and increased from 25.2% when final molasses with the least amount of added sugar was fed to 40.7% with the highest sugar level. There were no differences between diets in DE, but ME was significantly higher (3.52 mcal./kg. DM) for the high-test molasses diet than for those based on final molasses and sugar (3.35 to 3.46). The content of ME in the diet was positively related to percent fecal DM (P<.05).

¹ The authors are indebted to Sra. Ileana Valmaña for assistance in performing the statistical analyses.