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Effect ofFusarium roseum (Gibberella zea) on pregnancy and the estrous cycle in gilts fed molded corn on days 7–17 post-estrus

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Abstract

A laboratory produced corn culture ofFusarium roseum (Gibberella zea) was fed as 10% of the total diet to bred and non-bred gilts on days 7–17 postestrus. The corn culture contained both zearalenone and deoxynivalenol by analysis, and caused considerable feed refusal.

Although 6 of 10 bred gilts fed the corn culture appeared to be pregnant by ultrasound testing between days 40–50 post-breeding, none of them farrowed. Progesterone analyses indicated that none of the 10 gilts cycled normally during the 20 week observation period. Three maintained high serum progesterone (>10 ng/ml) during the entire period. Progesterone analyses were similar in 5 non-bred gilts fed the corn culture in that none of them cycled normally in 20 weeks.

The retention or loss of corpora lutea could not be attributed to levels of luteininzing hormone, as no relationship was found between concentrations of progesterone and luteinizing hormone.

This experiment indicates that limited dietary exposure of female swine toFusarium roseum infected corn can result in embryonic loss and disruption of normal reproductive cycling for an extended length of time.

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Authors and Affiliations

  1. Department of Veterinary Microbiology, Pathology and Public Health, Purdue University, 47907, West Lafayette, Indiana, USA

    G. G. Long

  2. Department of Animal Sciences, Purdue University, 47907, West Lafayette, Indiana, USA

    M. A. Diekman

  3. Department of Botany and Plant Pathology, Purdue University, 47907, West Lafayette, Indiana, USA

    J. F. Tuite

  4. Northern Regional Research Center, Agriculture Research Service, United States Department of Agriculture, 61604, Peoria, Illinois, USA

    G. M. Shannon & R. F. Vesonder

Authors
  1. G. G. Long
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  2. M. A. Diekman
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  3. J. F. Tuite
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  4. G. M. Shannon
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  5. R. F. Vesonder
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Long, G.G., Diekman, M.A., Tuite, J.F. et al. Effect ofFusarium roseum (Gibberella zea) on pregnancy and the estrous cycle in gilts fed molded corn on days 7–17 post-estrus. Vet Res Commun 6, 199–204 (1983). https://doi.org/10.1007/BF02214913

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  • DOI: https://doi.org/10.1007/BF02214913

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