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

Judit Juhász, P. Nagy, M. Kulcsár, G. Szigeti, J. Reiczigel, G. Huszenicza

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

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.

Original languageEnglish
Pages (from-to)211-222
Number of pages12
JournalActa Veterinaria Hungarica
Volume49
Issue number2
DOIs
Publication statusPublished - 2001

Fingerprint

Zearalenone
zearalenone
Corpus Luteum
corpus luteum
edema
mares
Edema
toxins
Ovulation
Progesterone
ovulation
progesterone
dosage
Digital Rectal Examination
Follicular Phase
Luteal Phase
blood sampling
estrous cycle
ultrasonography
Reproduction

Keywords

  • Follicular activity
  • Mare
  • Progesterone
  • Uterine oedema
  • Zearalenone

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Effect of low-dose zearalenone exposure on luteal function, follicular activity and uterine oedema in cycling mares. / Juhász, Judit; Nagy, P.; Kulcsár, M.; Szigeti, G.; Reiczigel, J.; Huszenicza, G.

In: Acta Veterinaria Hungarica, Vol. 49, No. 2, 2001, p. 211-222.

Research output: Contribution to journalArticle

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