Document Detail


A study of the occurrence of monochorionic and monozygotic twinning in the pig.
MedLine Citation:
PMID:  19016673     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
In humans as well as in most farm animals, monozygotic twins have been described. Nevertheless, only a few reports of twinning in the pig have been published. It has been suggested that monozygotic twins are formed during the first 14 days of pregnancy. This monozygotic twin study includes the investigation of porcine monochorionic embryos from 76 sows at days 26-29 post-insemination (p.i.), as well as an examination of 10 whole litters at days 21-22 p.i. In the former group, 29% of the sows carried monochorionic embryos. Based on DNA profiling using microsatellite markers, one monozygotic twin pair was found among these embryos. In the latter group, three monozygotic twin pairs were identified. Thus, it can be concluded that although the occurrence of monozygotic twins in pigs is a sporadic event, the fusion of extra-embryonic membranes is relatively common.
Authors:
D Bjerre; F Thorup; C B Jørgensen; M Vejlsted; M Fredholm
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Publication Detail:
Type:  Journal Article     Date:  2008-11-11
Journal Detail:
Title:  Animal genetics     Volume:  40     ISSN:  1365-2052     ISO Abbreviation:  Anim. Genet.     Publication Date:  2009 Feb 
Date Detail:
Created Date:  2009-01-30     Completed Date:  2009-03-12     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8605704     Medline TA:  Anim Genet     Country:  England    
Other Details:
Languages:  eng     Pagination:  53-6     Citation Subset:  IM    
Affiliation:
Genetics and Bioinformatics, Department of Animal Science and Animal Health, Faculty of Life Sciences, University of Copenhagen, Groennegaardsvej 3, DK-1870 Frederiksberg C, Denmark.
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MeSH Terms
Descriptor/Qualifier:
Amnion / physiology
Animals
Chorion / physiology
Embryonic Development
Female
Pregnancy
Sus scrofa / genetics,  physiology*
Twinning, Monozygotic*
Twins, Monozygotic / genetics

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