Effect of low-dose zearalenone exposure on luteal function, follicular activity and uterine oedema in cycling mares

Judit Juhász; P. Nagy; Margit Kulcsár; G. Szigeti; J. Reiczigel; Gy. Huszenicza

doi:10.1556/004.49.2001.2.11

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Acta Veterinaria Hungarica

Volume/Issue:: Volume 49: Issue 2

Effect of low-dose zearalenone exposure on luteal function, follicular activity and uterine oedema in cycling mares

Authors:

Judit Juhász

Judit Juhász Research Institute, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary

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P. Nagy

P. Nagy Department of Obstetrics and Reproduction, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary

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Margit Kulcsár

Margit Kulcsár Department of Obstetrics and Reproduction, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary

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G. Szigeti

G. Szigeti Central Veterinary Institute, Budapest, Hungary

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J. Reiczigel

J. Reiczigel Department of Biomathematics, Faculty of Veterinary Science, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary

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Gy. Huszenicza

Gy. Huszenicza Department of Obstetrics and Reproduction, Szent István University, H-1400 Budapest, P.O. Box 2, Hungary

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gyhuszen@univet.hu

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Pages:: 211–222

Online Publication Date:: Apr 2001

Publication Date:: 01 Apr 2001

Article Category:: Journal Article

DOI:: https://doi.org/10.1556/004.49.2001.2.11

Keywords:: Mare; zearalenone; progesterone; follicular activity; uterine oedema

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The effect of 10-day zearalenone administration starting 10 days after ovulation was studied in 6 cycling trotter mares in the summer period. After an entire oestrous cycle (Cycle 1), mares were given 7 mg purified zearalenone per os daily (1 mg/ml in ethyl alcohol) beginning on Day 10 of Cycle 2. Toxin exposure was continued until the subsequent ovulation. Luteal function and follicular activity were monitored daily by rectal palpation, ultrasonography and blood sampling for progesterone. During toxin exposure, all animals were in good physical condition. The toxin had no effect on the length of the interovulatory intervals, luteal and follicular phases. It did not influence significantly the plasma progesterone profiles (logistic curve parameters A1 to A6), the follicular activity (growth rate, maximum size of the ovulatory follicles, maximum number and the time of first increase in the number of large follicles) and the uterine oedema. It is concluded that in cyclic mares the methods used in this study could not detect any adverse effect of zearalenone (administered at a low dose similar to natural exposure) on reproduction.

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Acta Veterinaria Hungarica

Print ISSN:: 0236-6290

Online ISSN:: 1588-2705

Editorial Board

Mária BENKŐ (Acta Veterinaria Hungarica, Budapest, Hungary)
Gábor BODÓ (University of Veterinary Medicine, Budapest, Hungary)
Béla DÉNES (University of Veterinary Medicine, Budapest Hungary)
Edit ESZTERBAUER (Veterinary Medical Research Institute, Budapest, Hungary)
Hedvig FÉBEL (University of Veterinary Medicine, Budapest, Hungary)
László FODOR (University of Veterinary Medicine, Budapest, Hungary)
János GÁL (University of Veterinary Medicine, Budapest, Hungary)
Balázs HARRACH (Veterinary Medical Research Institute, Budapest, Hungary)
Peter MASSÁNYI (Slovak University of Agriculture in Nitra, Nitra, Slovak Republic)
Béla NAGY (Veterinary Medical Research Institute, Budapest, Hungary)
Tibor NÉMETH (University of Veterinary Medicine, Budapest, Hungary)
Zsuzsanna NEOGRÁDY (University of Veterinary Medicine, Budapest, Hungary)
Dušan PALIĆ (Ludwig Maximilian University, Munich, Germany)
Alessandra PELAGALLI (University of Naples Federico II, Naples, Italy)
Kurt PFISTER (Ludwig-Maximilians-University of Munich, Munich, Germany)
László SOLTI (University of Veterinary Medicine, Budapest, Hungary)
József SZABÓ (University of Veterinary Medicine, Budapest, Hungary)
Péter VAJDOVICH (University of Veterinary Medicine, Budapest, Hungary)
János VARGA (University of Veterinary Medicine, Budapest, Hungary)
Štefan VILČEK (University of Veterinary Medicine in Kosice, Kosice, Slovak Republic)
Károly VÖRÖS (University of Veterinary Medicine, Budapest, Hungary)
Herbert WEISSENBÖCK (University of Veterinary Medicine, Vienna, Austria)
Attila ZSARNOVSZKY (Szent István University, Gödöllő, Hungary)

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Acta Veterinaria Hungarica
Language	English
Size	A4
Year of Foundation	1951
Volumes per Year	1
Issues per Year	4
Founder	Magyar Tudományos Akadémia
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ISSN	0236-6290 (Print)
ISSN	1588-2705 (Online)