During the past three decades many studies have been reported which show positive growth responses to dietary anti biotics in turkey nutrition. Different feed additives have been used extensively in poultry diets at this station to study their effects on poultry performance. Copper (Cu) has been shown to stimulate growth, reduce the incidence of aortic rupture and prevent crop mold growth in turkeys. The affects of Bacitracin, Terramycin and Virginiamycin on growth rates of turkeys have been reported by many investigators. Turkeys have been shown to give better responses from antibiotics in old environments or on lower energy diets or when some nutrients were marginal or even deficient in diets.
This report summarizes the results of feeding the above mentioned feed additives on the growth of 3780 male and 216 female Nicholas White turkeys in 4 experiments. Females were only used in the last experiment. The poults were housed in floor pens with shavings for litter and individual weights and group feed consumption data were obtained at 4-week intervals. All birds that died were necropsied for cause of death.
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Department of Animal Science, Agricultural Experiment Station, South Dakota State University
Samie, Hossein; Hassibi, M.; Kashani, Ali B.; and Carlson, C. Wendell, "Virginiamycin, Terramycin And Copper For Growing Turkeys" (1984). South Dakota Poultry Field Day Proceedings and Research Reports, 1984. 4.