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pro vyhledávání: '"Jack H. Trammell"'
Autor:
Jack H. Trammell, Park W. Waldroup, J. A. Hebert, Randall A. Primo, Perry F. Twining, A. L. Izat, Ralph V. Fell, James S. Crawford
Publikováno v:
Poultry Science. 69:898-901
Six trials were conducted at various locations to determine the response of broiler chickens to combinations of zinc bacitracin and roxarsone when fed in the presence of narasin. The addition of zinc bacitracin at 55 mg per kg significantly improved