Document Detail

Fetal well-being assessment in bovine near-term gestations: current knowledge and future perspectives arising from comparative medicine.
MedLine Citation:
PMID:  17334032     Owner:  NLM     Status:  MEDLINE    
Cloning technology is associated with multiple losses throughout pregnancy and in the neonatal period. Any maternal or fetal disease can compromise pregnancy. A paucity of data are available on bovine fetal well-being in late pregnancy; development of well-being assessment methods might augment early diagnosis of abnormal pregnancy or fetal distress, allowing early intervention. This review presents the current knowledge on fetal well-being based on bovine, ovine, equine, and human studies, as well as interesting research parameters that have been studied in other species and not yet investigated in cattle. Transabdominal ultrasonography allows for diagnosis of large placentomes and hydrallantois that frequently accompany clone pregnancies. Fetal inactivity or large hyperechoic particles imaged within the fetal annexes are associated with fetal distress or death, and should be reassessed to confirm compromised pregnancy. Measurements of different fetal parameters (thoracic aorta, metacarpal or metatarsal thickness) could be reliable tools for early detection of the large offspring syndrome commonly found in cloned calves.
Sébastien M C Buczinski; Gilles Fecteau; Réjean C Lefebvre; Lawrence C Smith
Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  The Canadian veterinary journal. La revue vétérinaire canadienne     Volume:  48     ISSN:  0008-5286     ISO Abbreviation:  Can. Vet. J.     Publication Date:  2007 Feb 
Date Detail:
Created Date:  2007-03-05     Completed Date:  2007-03-22     Revised Date:  2013-06-06    
Medline Journal Info:
Nlm Unique ID:  0004653     Medline TA:  Can Vet J     Country:  Canada    
Other Details:
Languages:  eng     Pagination:  178-83     Citation Subset:  IM    
Département des Sciences Cliniques, Faculté de Médecine Vétérinaire, Université de Montreal, Saint-Hyacinthe, Québec.
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MeSH Terms
Cattle / physiology*
Cloning, Organism / methods
Fetal Development*
Fetal Monitoring / methods,  veterinary*
Fetus / physiology*
Horses / physiology
Placenta / pathology
Pregnancy, Animal / physiology*
Sheep / physiology
Species Specificity
Ultrasonography, Prenatal / veterinary

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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