Histological characteristics of the gonads of pig fetuses and their relationship with fetal anatomical measurements

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dc.citation.volumev. 117
dc.contributor.authorPontelo, Thais Preisser
dc.contributor.authorMiranda, Jose Rafael
dc.contributor.authorFelix, Matheus Augusto Rodrigues
dc.contributor.authorPereira, Barbara Azevedo
dc.contributor.authorSilva, William Eduardo da
dc.contributor.authorAvelar, Gleide Fernandes
dc.contributor.authorMariano, Flavia Cristina Martins Queiroz [UNIFESP]
dc.contributor.authorGuimaraes, Gregorio Correa
dc.contributor.authorZangeronimo, Marcio Gilberto
dc.coverageOxford
dc.date.accessioned2020-07-20T16:31:05Z
dc.date.available2020-07-20T16:31:05Z
dc.date.issued2018
dc.description.abstractThe objective was to evaluate the histomorphometric characteristics of the testis and ovaries of pig fetuses at different gestational ages, as well as their correlation with some fetus measurements. Forty-four fetuses were separated for gender (male and female) and gestational age (50, 80 and 106 days of gestation). After slaughter, fetuses had their body length, head and thoracic perimeters measured and their gonads submitted to histomorphometric analyses. The gonadal characteristics at different gestational ages were statistically compared, correlations with the fetal measurements were performed and equations to predict the gonadal characteristics from the fetal measurements were obtained. The testis weight logarithmically increased along pregnancy, whereas ovary weight increased in a linear manner. The cordonal length and number of Sertoli cells were positively correlated with the fetal measurements, being higher at 106 days gestation, while the nuclear volume of these cells were negatively correlated. The total number of follicles was higher at day 80 and 106 of pregnancy. The number of oogonia decreased along the pregnancy, however, their nucleus size was increased. The number of follicles and volume of oogonia were positively correlated with the fetal measurements, while the number of oogonia was negatively correlated. Equations were obtained for the prediction of gonadal characteristics of fetuses. We concluded that in pigs testis cell proliferation, ovary development and histological organization was more pronounced during the final third of pregnancy. Fetal weight and size were strongly related to gonadal development, and can be used to estimate the histological characteristics of gonads.en
dc.description.affiliationUniv Fed Lavras, Dept Vet Med, BR-37200000 Lavras, MG, Brazil
dc.description.affiliationUniv Fed Minas Gerais, Dept Morphol, BR-31270901 Belo Horizonte, MG, Brazil
dc.description.affiliationUniv Fed Sao Paulo, Inst Sci & Technol, BR-12247014 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Inst Sci & Technol, BR-12247014 Sao Jose Dos Campos, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipCAPES (PNPD Institucional)
dc.description.sponsorshipFAPEMIG
dc.description.sponsorshipCNPq Minitub do Brasil
dc.description.sponsorshipFazenda Sao Paulo (Oliveira-MG, Brazil)
dc.description.sponsorshipPostgraduate Program in Veterinary Sciences UFLA
dc.description.sponsorshipIDCAPES: 2457/2011
dc.description.sponsorshipIDFAPEMIG: PPM- 00359-14
dc.description.sponsorshipIDFAPEMIG: CVZ - APQ - 04446-10
dc.description.sponsorshipIDCNPq: 446288/2014-4
dc.format.extent28-36
dc.identifierhttp://dx.doi.org/10.1016/j.rvsc.2017.11.005
dc.identifier.citationResearch In Veterinary Science. Oxford, v. 117, p. 28-36, 2018.
dc.identifier.doi10.1016/j.rvsc.2017.11.005
dc.identifier.issn0034-5288
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/55700
dc.identifier.wosWOS:000430646300004
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.relation.ispartofResearch In Veterinary Science
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectEmbryologyen
dc.subjectFolliclesen
dc.subjectMorphologyen
dc.subjectOogoniaen
dc.subjectSertoli cellsen
dc.subjectSwineen
dc.subjectTestisen
dc.titleHistological characteristics of the gonads of pig fetuses and their relationship with fetal anatomical measurementsen
dc.typeinfo:eu-repo/semantics/article
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