PROTEINACEOUS FEED SUBSTANCES HAVING LOW LEVELS OF ZINC AND HIGH RUMEN-BYPASS POTENTIALS, AND A METHOD FOR THE PRODUCTION THEREOF

摘要

Vegetable meal compositions having high-rumen bypass potentials for use in the feeding of ruminant animals, and a method for producing the compositions are claimed. The claimed compositions comprise a protein meal and low levels of zinc ions, with the zinc ions being present in an amount sufficient to provide about .003-.008 parts zinc ions per part of protein in the meal. The composition has a rumen bypass potential, as measured by the "Percent of Total Protein that is Available and Undegraded", or "%AUN", of not less than about 30. The method for producing the composition comprises treating the meals with low levels of zinc ions and heating the mixture under moist heat conditions.