Please use this identifier to cite or link to this item: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1185832
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dc.contributor.authorGONÇALVES, J. D.
dc.contributor.authorVERGANI, G. B.
dc.contributor.authorRODRIGUES, J. N. D.
dc.contributor.authorDIAS, J. H.
dc.contributor.authorPEREIRA, V. S. do A.
dc.contributor.authorGARCIA, A. R.
dc.contributor.authorESTEVES, S. N.
dc.contributor.authorFONSECA, J. F. da
dc.contributor.authorOLIVEIRA, M. E. F.
dc.date.accessioned2026-03-31T08:14:26Z-
dc.date.available2026-03-31T08:14:26Z-
dc.date.created2026-03-26
dc.date.issued2026
dc.identifier.citationTropical Animal Health and Production, v. 58, 195, 2026.
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1185832-
dc.descriptionThis study evaluated whether human chorionic gonadotropin (hCG) affects biometric, echotextural, and signs color Doppler variables of the original corpus luteum (oCL) in Morada Nova ewes. Sixty-four ewes underwent estrus synchronization with intravaginal sponges impregnated with 60 mg of medroxyprogesterone acetate for six days, with an intramuscular injection of 37.5 µg of d-cloprostenol and 200 IU of equine chorionic gonadotropin thirty-six hours before sponge removal. The ewes were subjected to natural mating and subsequently allocated to receive 300 IU of hCG (hCG group; n=34) or 1 mL of saline solution (Control group; n=30) intramuscularly 7.5 days after sponge removal. Biometric variables of the corpus luteum (diameter, area, volume), echotextural variables (numerical pixels values and heterogeneity), and color Doppler signals (color Doppler area, color Doppler volume, and percentage of perfusion) were evaluated on days 7.5, 10.5, 13.5, and 21.5 after sponge removal. The oCL showed no differences in biometric or color Doppler signals between the hCG and control groups (P>0.05). However, hCG increased the echotextural variables, with oCL exhibiting higher numerical pixel values (88.8±4.7a vs. 70.0±0.8b ; P=0.0001) and heterogeneity (14.3±0.6a vs. 11.5±0.2b 38; P<0.0001) compared to the control 39 oCL, respectively. Furthermore, this increased echotextural variables was also observed in pregnant females with oCL hCG when compared to pregnant females with oCL control (P<0.05). These findings indicate that hCG enhances echotextural attributes of the oCL, suggesting functional improvement rather than structural or vascular changes during the early luteal phase.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectTecido luteal
dc.subjectEcotextura
dc.subjectUltrassonografia
dc.subjectEfeito luteotrópico
dc.titleEffects of human chorionic gonadotropin on echotextural attributes of the original corpus luteum in Morada Nova ewes.
dc.typeArtigo de periódico
dc.subject.thesagroOvelha
dc.subject.thesagroGonadotrofina
dc.subject.nalthesaurusSheep
riaa.ainfo.id1185832
riaa.ainfo.lastupdate2026-03-30
dc.identifier.doihttps://doi.org/10.1007/s11250-026-04998-8
dc.contributor.institutionJOEDSON DANTAS GONÇALVES, UNIVERSIDADE ESTADUAL PAULISTA; GABRIEL BRUN VERGANI, UNIVERSIDADE ESTADUAL PAULISTA; JULIANA NASCIMENTO DUARTE RODRIGUES, UNIVERSIDADE FEDERAL RURAL DA AMAZÔNIA; JENNIFFER HAUSCHILDT DIAS, UNIVERSIDADE FEDERAL DE VIÇOSA; VERONICA SCHINAIDER DO AMARAL PEREIRA, CNPGL; ALEXANDRE ROSSETTO GARCIA, CPPSE; SERGIO NOVITA ESTEVES, CPPSE; JEFERSON FERREIRA DA FONSECA, CNPC; MARIA EMILIA FRANCO OLIVEIRA, UNIVERSIDADE ESTADUAL PAULISTA.
Appears in Collections:Artigo em periódico indexado (CNPGL)

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