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Effects of Zearalenone (F2) on Estrous Activity and Reproduction in Gilts2
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Effects of Zearalenone (F2) on Estrous Activity and Reproduction in Gilts2
Effects of Zearalenone (F2) on Estrous Activity and Reproduction in Gilts2
ME
M. Etienne
M. Etienne
MJ
M. Jemmali
M. Jemmali
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1 July 1982
journal article
research article
Published by
Oxford University Press (OUP)
in
Journal of Animal Science
Vol. 55
(1)
,
1-10
https://doi.org/10.2527/jas1982.5511
Abstract
The effects of zearalenone on swine reproduction were investigated in two trials involving a total of 82 gilts which were allotted into three groups at puberty, mated at second estrus and slaughtered 80 d postbreeding. A control diet without mycotoxin (group 1) or an experimental diet containing 3.61 ppm (first trial) or 4.3 3 ppm zearalenone (second trial) were fed at a mean daily level of 2 kg/animal. The experimental diet was fed from puberty to mating (group 2) or during pregnancy (group 3). No difference was observed between the two trials. When fed to nonpregnant gilts, zearalenone induced a pseudopregnancy state in 45% of the animals; no estrus was detected within 50 d following puberty and corpora lutea developed at puberty were maintained. The uterine horns were edematous. Reproductive performance measured at 80 d postmating (ovulation rate, weight of corpora lutea, number of normal and abnormal fetuses, embryonic mortality) were not affected by zearalenone intake. But when zearalenone was fed during pregnancy, weights of uterus, placental membranes and fetuses were significantly decreased in comparison with those of control gilts and heterogeneity of fetuses in the same litter was increased. Hematocrit and erythrocyte count were lower in fetuses from gilts ingesting zearalenone, but hematology of the dams ramained unaffected. No mycotoxin residue could be detected in gilts or fetal tissues despite the great consequences observed on cyclicity of the famales or on the development of embryos. This experiment showed evidence of the estrogenic properties of zearalenone in mature gilts. Copyright © 1982. American Society of Animal Science. Copyright 1982 by American Society of Animal Science
Keywords
COPYRIGHT
EXPERIMENTAL
SOCIETY
FETUSES
PPM
PUBERTY
AMERICAN
GILTS
ZEARALENONE
CORPORA
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Cited by 111 articles