The Effect of Zinc Bacitracin and Roxarsone on Performance of Broiler Chickens When Fed in Combination With Narasin

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.

Effect of roxarsone inclusion in the diet on the performance and hepatic lipid metabolism of laying Tsaiya duck

“…The effectiveness of growth promotion depends on environment and management conditions. Adding 50 mg/kg produced growth promotion in poor environmental conditions, whereas there was no improvement in growth or food utilisation in a better environment (Waldroup and Izat, 1990). The inclusion of roxarsone in the range 22·5 to 50·0 mg/kg gave inconsistent results in broiler diets.…”

Zum Einfluss unterschiedlicher Behandlungsverfahren und Zusatzstoffe auf ernährungsphysiologische Parameter und Leistung wachsender Broiler nach Verabreichung weizenbetonter Futtermischungen

“…Dieses Antibiotikum ist nach oralen Gaben beim Menschen kaum resorbierbar, bei Hund, Kaninchen und Meerschweinchen gar nicht (SCHMID, 1965). Eine mögliche (1974), STUTZ et al (1983aSTUTZ et al ( , 1983bSTUTZ et al ( , 1983c, STUTZ und LAWTAN (1984), IZAT et al (1986), WALDROUP und IZAT (1990), DAMRON und WILSON (1991), ABDULRAHIM et al (1999) zu finden.…”