Article (Scientific journals)
The behaviour of cow blastocyst in vitro: cinematographic and morphometric analysis.
Massip, A.; Mulnard, J.; Vanderzwalmen, P. et al.
1982In Journal of Anatomy, 134 (Pt 2), p. 399-405
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Keywords :
Animals; Blastocyst/cytology/physiology; Cattle; Female; Motion Pictures as Topic
Abstract :
[en] The behaviour of the cow blastocyst in vitro was studied by time-lapse cinematography and analysed by morphometry. Three types of behaviour were observed: continuous expansion followed by hatching; discontinuous expansion interrupted by few contractions and followed by hatching; discontinuous expansion interrupted by several rapid contractions without hatching. This demonstrated that the pulsatile activity of the blastocyst is not a necessary condition of hatching but also that only a moderate pulsatile activity is compatible with normal hatching. The time of hatching in vitro corresponded approximately with the time of zona loss in vivo (9-10 days). Rupture of the zona occurred at any point of the trophoblast layer. Hatching by herniation through a reduced opening of the zona was occasionally observed. The behavior of the embryos from a particular animal was very similar but differences were noted between embryos from different animals.
Disciplines :
Veterinary medicine & animal health
Author, co-author :
Massip, A.
Mulnard, J.
Vanderzwalmen, P.
Hanzen, Christian  ;  Université de Liège - ULiège > Département clinique des animaux de production (DCP) > Obstétr. et path. de la reprod. des équidés, rumin. et porcs
Ectors, Francis;  Université de Liège - ULiège > Faculté de Médecine Vétérinaire
Language :
English
Title :
The behaviour of cow blastocyst in vitro: cinematographic and morphometric analysis.
Publication date :
1982
Journal title :
Journal of Anatomy
ISSN :
0021-8782
eISSN :
1469-7580
Publisher :
Blackwell Publishing, Oxford, United Kingdom
Volume :
134
Issue :
Pt 2
Pages :
399-405
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 March 2009

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