Sentence:  Knowing specifically what the <WSD>many</WSD> feed additives can do and how and when to feed them can make a highly competitive business more profitable for beef , dairy , and sheep men . 
Meaning of the word marked with <WSD> tags:  a quantifier that can be used with count nouns and is often preceded by `as' or `too' or `so' or `that'; amounting to a large but indefinite number