RELATIVE BIOAVAILABILITY OF DIFFERENT 



ORGANIC AND INORGANIC ZINC AND COPPER 



SOURCES IN RUMINANTS AND RATS 



By 



LUIS X. ROJAS 



A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL 



OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULFILLMENT 



OF THE REQUIREMENTS FOR THE DEGREE OF 



DOCTOR OF PHILOSOPHY 



UNIVERSITY OF FLORIDA 



1994 



