Revista Veterinaria Zacatecas 2010 - Universidad Autónoma de ...

postpartum pregnancy rate in the mare
followed daily treatment with prostalene.
Theriogenology 1988; 29: 1113-1121.
108. Jones DM, Fielden ED, Carr DH. Some
physiological and pharmacological
factors affecting uterine motility as
measured by electromyography in the
mare. J Reprod Fertil 1991; 44 (Suppl):
357-358.
109. Blanchard TL, Varner DD, Brinsko SP,
Quirk K, Rugula JN, Boehnke L. Effect
of ecobolic agents on measurements of
uterine involution in the mare.
Theriogenology 1991; 36: 559-571.
110. Gündüz MC, Kasikci G, Kaya HH. The
effect of oxytocin and prostaglandin F2
on the uterine involution and pregnancy
rates in Arabian mares. Anim Reprod Sci
2008; 104: 257-263.
111. Matthews RG, Ropiha RT, Butterfield
RM. The phenomenon of foal heat in
mares. Aust Vet J 1967; 43: 579-582.
112. Merkt H, Günzel AR. A survey of early
pregnancy loses in West German
Thoroughbred mares. Equine Vet J 1979;
11: 256-258.
113. Tolksdorff E. Induction of ovulation
during the postpartum period in the
Thoroughbred mare with prostaglandin
analogue Synchrocept. Theriogenology
1976; 6: 405-512.
114. Davies Morel MC, Newcombe JR,
Hinchliffe J. The relationship of
consecutive pregnancies in
Thoroughbred mares. Does localization
of one pregnancy affect the localization
of the next, is this affected by mare age
and foal heat to conception interval or
related to pregnancy success.
Theriogenology 2009; 71: 1072-1078.
ABSTRACT
Méndez-Bernal MS, Méndez-Bernal FG, de la Colina-Flores F, Escobar-Medina FJ. Reproductive
behavior in the mare. Mares show a seasonal breeding behavior, with inter-ovulations periods during long
days, and anestrous falls and winters. The reproductive cycle encompasses ovulations, pregnancy and postpartum
period. Follicular growth, ovulation, the appearance of the corpus luteum, progesterone secretion and
the destruction of the corpus luteum take place during the inter-ovulations periods. The best fertility results
are achieved when natural mating occurs one or two days before ovulation, whereas artificial insemination
attains its best figures around the ovulation time. Mares usually ovulate shortly after delivery. Veterinaria
Zacatecas 2010; 3: 135-147
Keywords: Reproductive behavior, mares, fertility
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