Variation of Esophageal Fistula Samples Between Animals and Days on Tropical Grasslands

Abstract

Forage collected by esophageal fi stulated cattle varies in chemical composition between days and animals. The' number of samples needed for a given degree of accuracy was determined. Silica content of fistula steer feces was significantly different from feces from the non-fistulated steer. There were no significant differences in crude protein, crude fiber, and ether extract.