Assertion: egg yolk's level | /r/HasProperty | 0.750%
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Source sentences:
text: (2008a) used an S. Enteritidis marker strain challenge study in a series of four independent trials to determine whether FOS when added to a combination of 90% alfalfa and 10% layer ration at two levels (0.750% and 0.375%) would influence GIT fermentation, S. Enteritidis GIT colonization, and organ invasion.