DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus

The goal of the present work was to characterise morphologically the oocytes and zygotes of Myocastor coypus. In order to obtain the samples, a daily colpocytological follow-up and programmed mating of females were done. By flushing of the oviducts, oocytes (17) and zygotes (24) were collected. In t...

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Autores principales:	Felipe,Antonio, Teruel,Miriam, Callejas,Santiago, Cabodevila,Jorge
Lenguaje:	English
Publicado:	Sociedad Chilena de Anatomía 2001
Materias:	Zygotes Myocastor coypus Morphology
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-98682001000200007
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spelling	oai:scielo:S0716-986820010002000072001-11-30DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypusFelipe,AntonioTeruel,MiriamCallejas,SantiagoCabodevila,Jorge Zygotes Myocastor coypus Morphology The goal of the present work was to characterise morphologically the oocytes and zygotes of Myocastor coypus. In order to obtain the samples, a daily colpocytological follow-up and programmed mating of females were done. By flushing of the oviducts, oocytes (17) and zygotes (24) were collected. In the analysis of the oocytes and zygotes, morphological aspects, including analysis of cellular polarity and of the envelopments were considered. Oocytes presented spherical shape with a cellular diameter of 85.7 ± 3.1 µm. The nucleus presented a diameter of 28 ± 3.1 µm. The occupied perivitelline space was 98%, with a zona pellucida thickness of 15.9 ± 1.9 µm. The existence of ovular polarity was determined. Zygotes presented an external diameter, measured to the zona pellucida, of 125 ± 8.6 mm and an embryonic diameter of 80.6 ± 8.1 µm. In 91.7% of the cases, they were in the stage of 2-nucleus zygote. A homogenous distribution of cytoplasmic granulations was observed in all the zygotes. As the only and complete envelopment, zygotes presented the zona pellucida, obtaining few specimens with associated granulose cellsinfo:eu-repo/semantics/openAccessSociedad Chilena de AnatomíaRevista chilena de anatomía v.19 n.2 20012001-08-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-98682001000200007en10.4067/S0716-98682001000200007
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Zygotes Myocastor coypus Morphology
spellingShingle	Zygotes Myocastor coypus Morphology Felipe,Antonio Teruel,Miriam Callejas,Santiago Cabodevila,Jorge DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
description	The goal of the present work was to characterise morphologically the oocytes and zygotes of Myocastor coypus. In order to obtain the samples, a daily colpocytological follow-up and programmed mating of females were done. By flushing of the oviducts, oocytes (17) and zygotes (24) were collected. In the analysis of the oocytes and zygotes, morphological aspects, including analysis of cellular polarity and of the envelopments were considered. Oocytes presented spherical shape with a cellular diameter of 85.7 ± 3.1 µm. The nucleus presented a diameter of 28 ± 3.1 µm. The occupied perivitelline space was 98%, with a zona pellucida thickness of 15.9 ± 1.9 µm. The existence of ovular polarity was determined. Zygotes presented an external diameter, measured to the zona pellucida, of 125 ± 8.6 mm and an embryonic diameter of 80.6 ± 8.1 µm. In 91.7% of the cases, they were in the stage of 2-nucleus zygote. A homogenous distribution of cytoplasmic granulations was observed in all the zygotes. As the only and complete envelopment, zygotes presented the zona pellucida, obtaining few specimens with associated granulose cells
author	Felipe,Antonio Teruel,Miriam Callejas,Santiago Cabodevila,Jorge
author_facet	Felipe,Antonio Teruel,Miriam Callejas,Santiago Cabodevila,Jorge
author_sort	Felipe,Antonio
title	DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
title_short	DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
title_full	DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
title_fullStr	DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
title_full_unstemmed	DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus
title_sort	description of the characteristics of oocytes and zygotes of coypu (myocastor coypus
publisher	Sociedad Chilena de Anatomía
publishDate	2001
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-98682001000200007
work_keys_str_mv	AT felipeantonio descriptionofthecharacteristicsofoocytesandzygotesofcoypumyocastorcoypus AT teruelmiriam descriptionofthecharacteristicsofoocytesandzygotesofcoypumyocastorcoypus AT callejassantiago descriptionofthecharacteristicsofoocytesandzygotesofcoypumyocastorcoypus AT cabodevilajorge descriptionofthecharacteristicsofoocytesandzygotesofcoypumyocastorcoypus
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DESCRIPTION OF THE CHARACTERISTICS OF OOCYTES AND ZYGOTES OF COYPU (Myocastor coypus

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