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  • Title: The effect of zinc bacitracin and roxarsone on performance of broiler chickens when fed in combination with narasin.
    Author: Waldroup PW, Izat AL, Primo RA, Twining PF, Herbert JA, Trammell JH, Fell RV, Crawford JS.
    Journal: Poult Sci; 1990 Jun; 69(6):898-901. PubMed ID: 2395787.
    Abstract:
    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 growth rate and feed utilization when data from all locations were combined. There was no effect of roxarsone fed at 50 mg per kg on BW or feed utilization, nor was there an interaction of roxarsone and zinc bacitracin on BW. There was a significant interaction of roxarsone and zinc bacitracin for feed utilization; addition of zinc bacitracin significantly improved feed utilization both in the presence and absence of roxarsone, but the improvement was greater in the absence of roxarsone.
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