Morphology and vascularization of the corpus luteum of peccaries (Pecari tajacu, Linnaeus, 1758) throughout the estrous cycle.

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dc.contributorM. T. M. MIRANDA MOURA, UFERSA; G. B. OLIVEIRA, UFERSA; G. C. X. PEIXOTO, UFERSA; J. M. PESSOA, Universidade Federal do Rio Grande do Norte; P. C. PAPA, Faculdade de Medicina Veterinária e Zootecnia – FMVZ-USP – São Paulo, SP; MARCIANE DA SILVA MAIA, Embrapa Semiárido; C. E. B. MOURA, UFERSA; M. F. OLIVEIRA, UFERSA.
dc.creatorMOURA, M. T. M. M.
dc.creatorOLIVEIRA, G. B.
dc.creatorPEIXOTO, G. C. X.
dc.creatorPESSOA, J. M.
dc.creatorPAPA, P. C.
dc.creatorMAIA, M. da S.
dc.creatorMOURA, C. E. B.
dc.creatorOLIVEIRA, M. F.
dc.date2016-02-23T11:11:11Z
dc.date2016-02-23T11:11:11Z
dc.date2016-02-23
dc.date2016
dc.date2017-01-19T11:11:11Z
dc.date.accessioned2026-07-07T05:45:40Z
dc.descriptionThe current paper characterizes the changes in morphology and vascularization of the corpus luteum of collared peccaries during the estrous cycle and correlates progesterone synthesis (P4). Twenty females were subjected to a treatment for estrus synchronization; an ear implant containing 1.5 mg of norgestomet was implanted on D0, whereas on D9 the peccaries received an IM injection of eCG 200UI and 50g of PGF2a. The animals were divided into four groups (G1, G2, G3 and G4) and euthanized on postovulation days 3, 12, 18 and 22. The ovaries were collected and the corpora lutea were measured and processed for histological and vascular density (Dv). Blood was collected for dosage of P4 serum. The morphology of the ovaries, the corpora lutea and P4 varied significantly during the estrous cycle (P<0.001). There was a significant co-relationship between weight and length of the ovaries and CL (r = 0.66, r = 0.52, P<0.05, respectively) and between weight, length and width of the CL and P4 (r = 0.51, r = 0.54 and r = 0.68, P<0.05, respectively). The luteal Dv was highly influenced by the estrous cycle phase (P<0.0001). The P4 and luteal Dv concentrations were higher in G2 and evidenced maximum secretory activity, with a highly significant correlation (P<0.0001). Assessed lutein parameters may estimate the phase of the estrous cycle in peccaries and the functional activity of the corpus luteum.
dc.identifierArquivo Brasileiro de Medicina Veterinária e Zootecnia, Belo Horizonte, v. 68, n. 1, p. 87-96, 2016.
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1038133
dc.identifier.urihttp://hdl.handle.net/123456789/499377
dc.languageeng
dc.rightsopenAccess
dc.subjectCateto
dc.subjectDensidade vascular
dc.subjectCollared peccary
dc.subjectCorpora lutea
dc.subjectVascular density
dc.subjectProdução animal
dc.subjectCiclo Estral
dc.subjectCorpo Lúteo
dc.subjectProgesterona
dc.subjectAnimal production
dc.subjectEstrous cycle
dc.subjectProgesterone
dc.titleMorphology and vascularization of the corpus luteum of peccaries (Pecari tajacu, Linnaeus, 1758) throughout the estrous cycle.
dc.typeArtigo de periódico

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