The use of feed additives to reduce the effects of aflatoxin and deoxynivalenol on pig growth, organ health and immune status during chronic exposure
- PMID: 23867763
- PMCID: PMC3737496
- DOI: 10.3390/toxins5071261
The use of feed additives to reduce the effects of aflatoxin and deoxynivalenol on pig growth, organ health and immune status during chronic exposure
Abstract
Three feed additives were tested to improve the growth and health of pigs chronically challenged with aflatoxin (AF) and deoxynivalenol (DON). Gilts (n = 225, 8.8 ± 0.4 kg) were allotted to five treatments: CON (uncontaminated control); MT (contaminated with 150 µg/kg AF and 1100 µg/kg DON); A (MT + a clay additive); B (MT + a clay and dried yeast additive); and C (MT + a clay and yeast culture additive). Average daily gain (ADG) and feed intake (ADFI) were recorded for 42 days, blood collected for immune analysis and tissue samples to measure damage. Feeding mycotoxins tended to decrease ADG and altered the immune system through a tendency to increase monocytes and immunoglobulins. Mycotoxins caused tissue damage in the form of liver bile ductule hyperplasia and karyomegaly. The additives in diets A and B reduced mycotoxin effects on the immune system and the liver and showed some ability to improve growth. The diet C additive played a role in reducing liver damage. Collectively, we conclude that AF and DON can be harmful to the growth and health of pigs consuming mycotoxins chronically. The selected feed additives improved pig health and may play a role in pig growth.
References
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- Council for Agricultural Science and Technology. Mycotoxins: Risks in Plant, Animal, and Human Systems. Council for Agricultural Science and Technology; Ames, IA, USA: 2003. (Task Force Report No. 139).
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- Jones F.T., Genter M.B., Hagler W.M., Hansen J.A., Mowrey B.A., Poore M.H., Whitlow L.W. Understanding and Coping with Effects of Mycotoxins in Livestock Feed And Forage. North Carolina Cooperative Extension Service; Raleigh, NC, USA: 2007.
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