Seminal plasma insulin-like growth factor I and total protein concentration in peripubertal period of the Gyr bulls

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Autor(es): dc.contributorUniversidade Federal do Paraná (UFPR)-
Autor(es): dc.contributorUniversidade Federal do Cariri-
Autor(es): dc.contributorUniversidade Federal Rural da Amazônia-
Autor(es): dc.contributorUniversidad de La Salle-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidad Nacional de Colombia-
Autor(es): dc.contributorUniversidade Federal de Minas Gerais (UFMG)-
Autor(es): dc.creatorSouza, Fernando Andrade-
Autor(es): dc.creatorMartins, Jorge André Matias-
Autor(es): dc.creatorEmerick, Lucas Luz-
Autor(es): dc.creatorLaskoski, Luciane Maria-
Autor(es): dc.creatorPerez-Osorio, Jair-
Autor(es): dc.creatorde Souza, Fabiana Ferreira-
Autor(es): dc.creatorParedes Cañon, Astrid L.-
Autor(es): dc.creatordo Vale Filho, Vicente Ribeiro-
Data de aceite: dc.date.accessioned2025-08-21T17:13:13Z-
Data de disponibilização: dc.date.available2025-08-21T17:13:13Z-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2022-04-29-
Data de envio: dc.date.issued2020-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1111/rda.13987-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/229140-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/229140-
Descrição: dc.descriptionThis study aimed to evaluate the correlation of seminal plasma IGF-I and total proteins from peripubertal bulls with semen characteristics and onset of puberty. Sixteen dairy Gyr bulls were separated into early (n = 8) and regular (n = 8) groups, according to the onset of puberty. Semen was monthly collected by electroejaculation from 14 to 26 months of age, and the onset of puberty was retrospectively determined (17.0 ± 1.6 and 19.2 ± 1.5 months, to early and regular group, respectively). Five time points were evaluated (day −60, day −30, day 0, day 30 and day 60 days of puberty), being day 0 considered as beginning of puberty. Scrotal circumference and body weight were also assessed. Semen characteristics were evaluated, the seminal plasma was separated by centrifugation and total protein and IGF-I concentrations were determined. There was no difference between groups to concentration of the seminal plasma total proteins, but we found an interaction between group and age. Seminal plasma IGF-I concentrations were not different between early and regular groups; thus, the data were combined for analysis. Combined IGF-I concentrations were positively correlated with sperm motility and concentration, age, body weight and scrotal circumference. Negative correlation was found between IGF-I concentration and total sperm defects. Increased IGF-I was observed in day −30 and day 0 of puberty in early and regular groups, respectively. Seminal plasma total proteins are involved in peripubertal modifications and IGF-I from Zebus dairy bulls can influence the seminal characteristics and the growth factor increase occurs concomitantly with body growth but cannot be used to define puberty bulls earlier.-
Descrição: dc.descriptionDepartamento de Medicina Veterinária Universidade Federal do Paraná-
Descrição: dc.descriptionCentro de Ciências Agrárias e da Biodiversidade Universidade Federal do Cariri-
Descrição: dc.descriptionUniversidade Federal Rural da Amazônia-
Descrição: dc.descriptionFacultad de Ciencias Agropecuarias Universidad de La Salle-
Descrição: dc.descriptionDepartamento de Cirurgia Veterinária e Reprodução Animal FMVZ Universidade Estadual Paulista UNESP-
Descrição: dc.descriptionDepartamento de Salud Animal y Producción de Hato Universidad Nacional de Colombia-
Descrição: dc.descriptionUniversidade Federal de Minas Gerais Escola de Veterinária da UFMG-
Descrição: dc.descriptionDepartamento de Cirurgia Veterinária e Reprodução Animal FMVZ Universidade Estadual Paulista UNESP-
Idioma: dc.languageen-
Relação: dc.relationReproduction in Domestic Animals-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectfertility-
Palavras-chave: dc.subjectGyr-
Palavras-chave: dc.subjectinsulin-like growth factor-
Palavras-chave: dc.subjectprotein-
Palavras-chave: dc.subjectsemen-
Título: dc.titleSeminal plasma insulin-like growth factor I and total protein concentration in peripubertal period of the Gyr bulls-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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