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  • Title: Individual and combined effects of aflatoxin and deoxynivalenol (DON, vomitoxin) in broiler chickens.
    Author: Huff WE, Kubena LF, Harvey RB, Hagler WM, Swanson SP, Phillips TD, Creger CR.
    Journal: Poult Sci; 1986 Jul; 65(7):1291-8. PubMed ID: 3748945.
    Abstract:
    The individual and combined effects of aflatoxin and deoxynivalenol (DON) were evaluated in young broiler chickens (Hubbard X Hubbard). The experimental design was a 2 X 2 factorial with treatments of 0 and 2.5 micrograms of aflatoxin/g of feed (ppm) and 0 and 16 micrograms of DON/g of feed. The broilers were maintained on these dietary treatments from hatching to 3 weeks of age in electrically heated batteries with feed and water available ad libitum. The aflatoxin treatment significantly (P less than .05) decreased body weight; weight gain; increased the relative weight of the spleen, liver, and kidney; induced hepatic hyperlipemia; decreased activity of lactic dehydrogenase; and decreased serum levels of protein, albumin, and phosphorus. The toxicity of DON was expressed through reduced growth rate, increased feed conversion; increased relative weight of the gizzard, anemia, decreased activity of lactic dehydrogenase, and decreased serum triglycerides. The interaction between aflatoxin and DON was characterized by reduced growth rates; increased feed conversion, increased relative weight of the proventriculus, gizzard, spleen, liver, and kidney, anemia, hepatic hyperlipemia, decreased activity of alkaline phosphatase, glutamic oxalacetic transaminase, and lactic dehydrogenase, and decreased serum levels of protein, albumin, uric acid, cholesterol, triglycerides, and calcium. These data demonstrate that both aflatoxin and DON can limit broiler performance and adversely effect broiler health. The effects of the combination of aflatoxin and DON on broiler performance and health was more severe than the individual effects of these mycotoxins; however, the interaction was not severe enough to represent toxic synergy and can best be characterized as additive toxicity.
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