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Complications during gestation in the cow.

M Drost1

  • 1Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Florida, Gainesville, FL 32610-0136, USA. drost@ufl.edu

Theriogenology
|May 29, 2007
PubMed
Summary

This paper reviews complications of bovine gestation, including uterine torsion, vaginal prolapse, fetal issues like mummification, and hydropic conditions such as hydrallantois and hydramnios.

Area of Science:

  • Veterinary Medicine
  • Reproductive Biology
  • Teratology

Background:

  • Gestation in cows can be complicated by noninfectious conditions, including uterine torsion and vaginal prolapse.
  • Fetal and placental issues, such as mummification, maceration, and hydropic conditions, also impact pregnancy outcomes.
  • Emerging issues like abnormal offspring syndrome are linked to assisted reproductive technologies.

Purpose of the Study:

  • To review the predisposition, clinical signs, diagnosis, and management of uterine torsion in cows.
  • To discuss the pathogenesis, clinical presentation, treatment, and prognosis of vaginal prolapse during late gestation in cattle.
  • To compare and contrast fetal and placental complications, including fetal mummification, maceration, and hydropic conditions (hydrallantois and hydramnios).

Main Methods:

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  • Literature review of uterine torsion and vaginal prolapse in late-gestation cows.
  • Discussion of fetal complications: mummification, maceration.
  • Comparative analysis of hydropic conditions: hydrallantois versus hydramnios, and mention of abnormal offspring syndrome and teratology resources.

Main Results:

  • Uterine torsion and vaginal prolapse are significant accidents of gestation in cows.
  • Hydrallantois, a placental issue, is significantly more common than hydramnios, which stems from fetal anomalies.
  • Abnormal offspring syndrome is a noted complication associated with in vitro fertilization (IVF) and somatic cell nuclear transfer (SCNT) embryo transfer.

Conclusions:

  • Comprehensive understanding of these diverse gestational complications is crucial for bovine reproductive health.
  • Distinguishing between placental and fetal origins of hydropic conditions aids in prognosis and management.
  • Awareness of teratological conditions and assisted reproductive technology-related syndromes is important for modern veterinary practice.