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Synchronization of estrous using FGA internal pessaries and CIDR in Churra Galega Bragançana ewes

2021Conference object Open access
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dc.contributor.authorQuintas, Helder
dc.contributor.authorSilva, Luis
dc.contributor.authorMateus, Óscar
dc.contributor.authorRamos, Juan Jose
dc.contributor.authorFerrer, Luis Miguel
dc.contributor.authorRuiz, Héctor
dc.contributor.authorLacasta, Delia
dc.contributor.authorValentim, Ramiro
dc.date.accessioned2023-05-09T11:31:11Z
dc.date.available2023-05-09T11:31:11Z
dc.date.issued2021
dc.description.abstractThe main goal of this paper was to compare the efficiency of FGA and CIDR in the synchronization of estrous in Portuguese CGB ewes. This study was performed at Braganza (latitude 41° 48’ 33’’N, longitude 6° 44’ 3’’W and Altitude 670 meters between April 1st and June 5th. Forty-nine CGB ewes aging between 2 to 8 years were divided in two groups - FGA (n = 26) and CIDR (n = 23). Body condition was scored according to the Australian classification table. In April 12th FGA ewes received a FGA (20 mg) internal pessary and CIDR ewes received a CIDR (0.35 g) device. Twelve days later internal pessaries and CIDR devices were removed and all ewes were injected with 500 UI of eCG. All ewes were artificially inseminated with chilled semen 53 + 1 hour post eCG injection. Initial ovarian cyclicity and ovarian response to treatments were assayed by progesterone plasmatic levels. Pregnancy diagnosis was performed by ultrasonography 41 days after artificial insemination (AI). About 87.8% (n = 43) of all ewes presented for at least once progesterone plasmatic level higher than 0.5 ng/ml in the two weeks prior to vaginal device insertion. Neither age nor body score condition affected significantly the percentage of ewes initially cyclic (P>0.05). The percentage of ewes that did not lose the vaginal device (FGA: 88.5% vs. CIDR: 91.3%; c2=0.5; P>0.05) or did not present vaginitis (FGA: 92.3% vs. CIDR: 95.7%c2=1.4; P>0.05) was identical in those treated with internal pessaries and with CIDR. All ewes presented progesterone plasmatic levels higher than 0.5 ng/ml for the first five days post-vaginal devices removal. About 81.6% of all ewes were pregnant 41 days after AI. The difference between treatments was not statistically significant (FGA: 84.6%vs. CIDR: 78.3%; c2=1.6; P>0.05). FGA internal pessaries and CIDR devices are very effective in the synchronization of estrous in CGB ewes.pt_PT
dc.description.sponsorshipProjeto POCTEP 2014-2020 (0687_OVISPID_2_E)pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationQuintas, Hélder; Silva, Luis; Mateus, Óscar; Ramos, Juan Jose; Ferrer, Luis Miguel; Ruiz, Héctor; Lacasta, Delia; Valentim, Ramiro (2021). Synchronization of estrous using FGA internal pessaries and CIDR in Churra Galega Bragançana ewes. In Book of Abstracts of ISVA2021. Onlinept_PT
dc.identifier.isbn978-84-09-38781-6
dc.identifier.urihttp://hdl.handle.net/10198/28244
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherISVA2021pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectEstrous synchronizationpt_PT
dc.subjectFGApt_PT
dc.subjectCIDRpt_PT
dc.subjectChurra Galega Bragançanapt_PT
dc.titleSynchronization of estrous using FGA internal pessaries and CIDR in Churra Galega Bragançana ewespt_PT
dc.typeconference object
dspace.entity.typePublication
oaire.citation.conferencePlaceOnlinept_PT
oaire.citation.endPage37pt_PT
oaire.citation.startPage37pt_PT
oaire.citation.titleBook of Abstracts of ISVA2021pt_PT
person.familyNameQuintas
person.familyNameValentim
person.givenNameHelder
person.givenNameRamiro
person.identifier1486884
person.identifier.ciencia-id6018-8BBD-80AB
person.identifier.ciencia-idB01B-96FF-D524
person.identifier.orcid0000-0002-6934-1669
person.identifier.orcid0000-0002-3514-988X
person.identifier.scopus-author-id35796342900
rcaap.rightsopenAccesspt_PT
rcaap.typeconferenceObjectpt_PT
relation.isAuthorOfPublication068e74bc-656d-4fd1-93ed-f7346baa3b69
relation.isAuthorOfPublication7c1f54bd-81e6-45c4-ac4d-6a297ecd0f35
relation.isAuthorOfPublication.latestForDiscovery7c1f54bd-81e6-45c4-ac4d-6a297ecd0f35

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