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Supplemental lysine sulfate does not negatively affect performance of broiler chicks fed dietary sulfur from multiple dietary and water sources
- Bobeck, E. A., Payne, R. L., Kerr, B. J., Persia, M. E.
- Journal of Applied Poultry Research 2013 v.22 no.3 pp. 461
- additives, animal performance, broiler chickens, chicks, copper, copper sulfate, dietary supplements, drinking water, feed intake, feeds, grains, ingredients, lysine, nutritionists, sodium sulfide, sulfur, weight gain, zinc sulfate
- Commercial producers and nutritionists have questioned the performance consequences of sulfur (S) from various dietary and water sources combined in current commercial production. The combination of high S containing feed ingredients, including dried distiller’s grains with solubles (DDGS) and dietary additives that contain S such as lysine sulfate or copper sulfate, has the potential to create high S exposure, especially when combined with high S drinking water. The tolerance of growing broiler chicks to S was determined by supplementation of a corn-soybean- 5% DDGS diet with up to 1% lysine sulfate or an equal amount of S from sodium sulfide. An additional diet containing copper and zinc sulfate served as a positive control for source of S and high S inclusion. These diets were fed to chicks provided with normal or high water S. We hypothesized that the addition of S sources to a commercial diet would not reduce the performance of growing chicks given access to normal or high S water. Data showed dietary S requirements were met and excess S was easily excreted, hence under the experimental feeding conditions, supplementation with up to 1% additional lysine sulfate (or similar product) did not reduce performance in comparison with chicks fed a lower S diet with access to normal or high S water. Analysis of the high S diet from copper and zinc sulfate suggests reduced water and feed consumption although there were no effects on chick weight gain.