An Epidemiological Study of the Association Between Delayed Estrus in Swine and Low Levels of Aflatoxin B1, in Naturally Contaminated Feed
Mycotoxins are secondary metabolites of fungi found as contaminants of feed grains. Some mycotoxins, such as aflatoxin B1 (AFB1), zearalenone (ZE) , deoxynivalenol, ochratoxin A, and T-2 toxin, are toxic to animals when ingested, inhaled, and when topically applied. Many of the toxins affecting animal production are produced by fungal species from three genera: Fusarium, Aspergillus, and Penicillium. These fungi are ubiquitous and under suitable environmental conditions will grow and produce toxic metabolites in feedstuffs and foods.
KeywordsRectal Prolapse Suitable Environmental Condition Mycotoxin Analysis Reduce Litter Size AFBI Concentration
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- Armbrecht, B.H., Wiseman, H.G., and Shalkop, W.T. (1972). Swine aflatoxicosis. II. The chronic response in breed sows fed sublethal amounts of aflatoxin and reaction in their piglets. Environ. Physiol. Biochem., 2, 77–85.Google Scholar
- Edds G.T. (1973). Acute aflatoxicosis: A review. J. Amer. Vet. Med. Assoc., 162, 304–309.Google Scholar
- Guthrie, L.C. (1979). Effects of aflatoxin in corn on production and reproduction in dairy cattle. J. Dairy Sci., 62, 134.Google Scholar
- Hoerr, J.F. and D’Andrea, G.H. (1983). Biological effects of aflatoxin in swine. In: Aflatoxin and ASPERGILLUS FLAVUS in Corn. pp. 51-55. (U.L. Diener, R.L. Asquith, and J.W. Dickens, eds.) Southern Coop. Series Bul., 279., Ala. Agrie. Exp. Sta., Auburn Univ., Auburn, Alabama.Google Scholar
- Hutchins, J.E. and Hagler, W.M., Jr. (1983). Rapid liquid Chromatographic determination of aflatoxin in heavily contaminated corn. J. Assoc. Offic. Anal. Chem., 66, 1458–1465.Google Scholar
- Mausner, J.S. and Bahn, A.K. (1974). Epidemiology: An Introductory Text. 377 pp., W.B. Saunders Co., Philadelphia, Pennsylvania.Google Scholar
- McKnight, C.R., Hagler, W.M., Jr., Jones, E.E., and Armstrong, W.D. (1989). The effects of aflatoxin-contaminated corn on brood sows from farrow to finish. In: Biodeterioration Research 3. (G. C. Llewellyn and C.E. O’Rear, eds.) Plenum Press, New York, New York. (in press)Google Scholar
- Newberne, P.M. (1973). Chronic aflatoxicosis. J. Amer. Vet. Med. Assoc., 163, 1262–1267.Google Scholar
- Pier, A.C., Cysewski, S.J., Richard, J.L., and Thurston, J.R. (1977). Mycotoxins as a veterinary problem, In: Mycotoxins in Human and Animal Health, pp. 745–750 (CM. Hesseltine, J.V. Rodricks, and M.A. Mehlman, eds.), Pathotox, Park Forest South, Illinois.Google Scholar
- Swanson, S.P., Corley, R.A., White, D.G., and Buck, W.B. (1984). Rapid thin layer Chromatographic method for determination of zearalenone and zearalenol in grains and animal feeds. J. Assoc. Off. Anal. Chem., 67, 580–582.Google Scholar
- Stubblefield, R.D., Pier, A.C., Richard, J.L., and Shotwell, O.L., (1983). Fate of aflatoxins in tissues, fluids, and excrements of cows dosed orally with aflatoxin B1. Amer. J. Vet. Res., 44, 1750–1752.Google Scholar
- Trucksess, M.W., Richard, J.L., Stoloff, L., McDonald, J.S., Brumley, W.C., (1983). Absorption and distribution patterns of aflatoxicol and aflatoxins B1 and M1 in blood and milk of cows given aflatoxin B1. Amer. J. Vet. Res., 44, 1753–1756.Google Scholar