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RADIOGRAPHIC EVALUATION OF PRENATAL DEVELOPMENT IN THE BEAGLE
Author(s) -
Rendano Victor T.,
Lein Donald H.,
Concan Patrick W.
Publication year - 1984
Publication title -
veterinary radiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 0196-3627
DOI - 10.1111/j.1740-8261.1984.tb01924.x
Subject(s) - beagle , uterus , fetus , pelvis , anatomy , medicine , biology , pregnancy , endocrinology , genetics
The chronology of uterine enlargement and fetal mineralization relative to luteinizing hormone (LH) peak, time of breeding, and parturition was determined in six female Beagles. Uterine enlargement was first detectable radiographically 35 days prior to parturition. The uterus changes in shape from a circular to a tubular/ovoid structure by 24 days prior to parturition. Mineralized fetuses were first detected at 21 days prior to parturition. The extent of mineralization progressed rapidly with the proximal extremities, forelegs/hindlegs/pelvis, caudal vertebrae/paws, and finally, the teeth becoming visible at approximately 17, 11, five, and four days prior to parturition, respectively. There is a larger variation of gestational dates among dogs when based on time of breeding rather than on the occurrence of the LH peak or parturition. As such, the dates on which to radiographically detect uterine enlargement or fetal mineralization were more accurately determined when based on the occurrence of the LH peak or parturition instead of breeding dates.