A study of the occurrence of monochorionic and monozygotic twinning in the pig

Ditte Bjerre; F. Thorup; Claus Bøttcher Jørgensen; Morten Vejlsted; Merete Fredholm

doi:10.1111/j.1365-2052.2008.01801.x

A study of the occurrence of monochorionic and monozygotic twinning in the pig

Ditte Bjerre, F. Thorup, Claus Bøttcher Jørgensen, Morten Vejlsted, Merete Fredholm

3 Citationer (Scopus)

Abstract

Summary 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.

Originalsprog	Engelsk
Tidsskrift	Animal Genetics
Vol/bind	40
Udgave nummer	1
Sider (fra-til)	53-56
Antal sider	4
ISSN	0268-9146
DOI	https://doi.org/10.1111/j.1365-2052.2008.01801.x
Status	Udgivet - 2009

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10.1111/j.1365-2052.2008.01801.x

Citationsformater

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title = "A study of the occurrence of monochorionic and monozygotic twinning in the pig",

abstract = "Summary 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.",

author = "Ditte Bjerre and F. Thorup and J{\o}rgensen, {Claus B{\o}ttcher} and Morten Vejlsted and Merete Fredholm",

year = "2009",

doi = "10.1111/j.1365-2052.2008.01801.x",

language = "English",

volume = "40",

pages = "53--56",

journal = "Animal Genetics",

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TY - JOUR

T1 - A study of the occurrence of monochorionic and monozygotic twinning in the pig

AU - Bjerre, Ditte

AU - Thorup, F.

AU - Jørgensen, Claus Bøttcher

AU - Vejlsted, Morten

AU - Fredholm, Merete

PY - 2009

Y1 - 2009

N2 - Summary 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.

AB - Summary 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.

U2 - 10.1111/j.1365-2052.2008.01801.x

DO - 10.1111/j.1365-2052.2008.01801.x

M3 - Journal article

C2 - 19016673

SN - 0268-9146

VL - 40

SP - 53

EP - 56

JO - Animal Genetics

JF - Animal Genetics

IS - 1

ER -

A study of the occurrence of monochorionic and monozygotic twinning in the pig

Abstract

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