Gestation length related to the age in Thoroughbred mares, to placenta’s and newborn foal’s weight and parturition time
Keywords:Mares, Newborn animals, Foals, Parturition, Placenta, Postpartum period
AbstractThis study was performed with the aim of determining physiologic parameters regarding post foaling behavior in the mare, puerperium and foal. Three hundred and ninety deliveries of Thoroughbred mares were observed between July, 1983 and November, 1992. Older mares produced heavier foals and placentae. The mare’s age had no influence on gestational length, and this parameter was not related to the moment of conception or to the foal’s weight. Older mares, with a healthy endometrium, eliminated heavier placentae compared to younger, healthy mares. Most of deliveries (87.54%) occurred at night (between 6:00 p.m. and 7:00 a.m.), when environmental activities were at a minimum.
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Kurtz Filho, M., Deprá, N. M., Alda, J. L. de, Castro, I. N. de, De La Corte, F. D., Silva, J. H. S. da, & Silva, C. A. M. (1997). Gestation length related to the age in Thoroughbred mares, to placenta’s and newborn foal’s weight and parturition time. Brazilian Journal of Veterinary Research and Animal Science, 34(1), 37-40. https://doi.org/10.11606/issn.2318-3659.v34i1p37-40
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