Pasture Programs and Beef Cattle Breeding Systems for Beef Production In North Central Florida Beef Research Unit Experimental Phase No. 3 By Marvin Kogera, R. E. L. Greene', G. B. Killinger' W. G. Blue", and J. M. Myers' In collaboration with N. Gammon" A. C. Warnick" and J. E. Moore" aAnimal Science Department bFood and Resource Economics Department cAgronomy Department 'Soil Science Department eAgricultural Engineering Department