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EMBRYO RECOVERY UNDER ANAESTHESIA AFTER hCG OR GnRH TREATMENTS IN THE RABBIT AND SURVIVAL WHEN A REDUCED NUMBER OF EMBRYOS IS TRANSFERRED

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EMBRYO RECOVERY UNDER ANAESTHESIA AFTER hCG OR GnRH TREATMENTS IN THE RABBIT AND SURVIVAL WHEN A REDUCED NUMBER OF EMBRYOS IS TRANSFERRED

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dc.contributor.author LOPEZ, Marina
dc.contributor.author FORCADA, F.
dc.contributor.author RODRIGUEZ, J.A.
dc.contributor.author MARTIN, Maria
dc.contributor.author ZARAGAZA, L.
dc.date.accessioned 2011-03-23T12:22:26Z
dc.date.available 2011-03-23T12:22:26Z
dc.date.issued 1993
dc.identifier.issn 1257-5011
dc.identifier.uri http://hdl.handle.net/10251/10556
dc.description.abstract [EN] Ovulation rate and number of 72h post-mating recovered embryos were studied in nulliparous Spanish Giant does treated with an intravenous injection of 25 IU hCG (n=22) or 20 μg GnRH (n=20) intramuscularly after coitus. Embryos were recovered under anaesthesia by separata perfusion of the oviducts and uteri. One of the GnRH-treated does did not ovulate. No significant differences between groups were found either in the ovulation rate or in the number on recovered embryos per donor doe (8.5 ± 0.2 and 7.3 ± 0.2 vs 8.6 ± 0.4 and 6.8 ± 0.9 respectively for hCG and GnRH treated animals). After transfer into the uteri of synchronized Solaf commercial hybrid recipients, the lower number of embryos transferred per doe (5.9 vs 11.2) did not affect to the percentage of pregnant does (67 vs 75 o/o respectively), but increased the percentage of young born per pregnant doe (59 vs 41 o/o respectively) (P<0.05). Plasma progesterone levels in the recipients were higher in pregnant does (at least P<0.05) from Day 9 post-mating to the last blood sample recovered (Day 21), although the progesterone pattern in the non-pregnant ones indicated that the induction of ovulation was effective. The results indicate the adequate embryo recovery rates obtained from Spanish Giant does under anaesthesia and the good efficiency after transfer of a reduced number of embryos per recipient doe. es_ES
dc.description.abstract [FR] Le taux d'ovulation et le nombre d'embryons retrouvés 72 heures apres l'accouplement ont été étudiés chez 42 lapines primipares de race Géant d'Espagne traitées par injection intraveineuse de 25 U/ d'hCG (n=22) ou intramusculaire de 20 μg GnRH (n=20) apres l'accouplement. Les embryons ont été récupérés par perfusion séparée de l'oviducte et de l'utérus. Une des lapines traitées par GnRH n'a pas ovulé. JI ny a pas de différences significatives entre les 2 groupes pour ce qui concerne le taux d'ovulation ou Je nombre d'embryons retrouvés par lapine donneuse (8,5 ± 0,2 et 7,3 ± 0,2 vs 8,6 ± 0,4 et 6,8 ± 0,9 respectivement pour les animaux traités par hCG et GnRH). Apres transfert dans /'utérus de receveuses hybrides commerciales Solaf synchronisées, le plus petit nombre d'embryons transférés par lapine (5,9 vs 11,2) n'a pas affecté le pourcentage de lapines gestantes (67 vs 75 % respectivement), mais a augmenté Je pourcentage de lapereaux nés par lapine gestante (59 vs 41 % respectivement) (P<0.05). Le taux de progestérone plasmatique des receveuses était plus élevé chez les lapines gestantes (au moins P<0.05) a partir du 9eme jour apres l'accouplement et jusqu'au dernier prélevement de sang au 21eme jour, bien que le taux de progestérone chez les lapines non gestantes indique que J'ovulation était effectivement induite. Les résultats montrent un taux de recouvrement d'embryons satisfaisant a partir de lapines Géant d'Espagne, sous anesthésie, et un bonne efficacité apres transfert d'un nombre réduit d'embryons par lapine receveuse.
dc.description.sponsorship This study was supported by a grant 229-17 (1991) from Zaragoza University
dc.description.tableofcontents 132
dc.language Inglés es_ES
dc.publisher World Rabbit Science. ICTA. UPV es_ES
dc.relation.ispartof World Rabbit Science
dc.rights Reconocimiento - No comercial (by-nc) es_ES
dc.title EMBRYO RECOVERY UNDER ANAESTHESIA AFTER hCG OR GnRH TREATMENTS IN THE RABBIT AND SURVIVAL WHEN A REDUCED NUMBER OF EMBRYOS IS TRANSFERRED es_ES
dc.type Artículo es_ES
dc.date.updated 2011-03-23T11:38:59Z
dc.identifier.doi 10.4995/wrs.1993.205.
dc.rights.accessRights Abierto es_ES
dc.description.bibliographicCitation Lopez, M.; Forcada, F.; Rodriguez, J.; Martin, M.; Zaragaza, L. (1993). EMBRYO RECOVERY UNDER ANAESTHESIA AFTER hCG OR GnRH TREATMENTS IN THE RABBIT AND SURVIVAL WHEN A REDUCED NUMBER OF EMBRYOS IS TRANSFERRED. World Rabbit Science. 1(4). doi:10.4995/wrs.1993.205 es_ES
dc.relation.publisherversion https://doi.org/10.4995/wrs.1993.205.
dc.description.upvformatpinicio 127
dc.description.volume 1
dc.description.issue 4
dc.identifier.eissn 1989-8886 es_ES


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