Ovarian follicular development, hormonal and metabolic profile in prepubertal ewe lambs with moderate dietary restriction and lipid supplementation

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dc.contributor.authorJunqueira, Felipe Barbosa
dc.contributor.authorSouza, José Camisão de
dc.contributor.authorCampos, João Pedro Araújo
dc.contributor.authorFaria, Letícia Rodrigues
dc.contributor.authorSilva, Débora Regina da
dc.contributor.authorAscari, Ivan Júnior
dc.contributor.authorLima, Renato Ribeiro de
dc.contributor.authorFurusho-Garcia, Iraídes Ferreira
dc.contributor.authorNogueira, Guilherme de Paula [UNESP]
dc.contributor.authorAlves, Nadja Gomes
dc.contributor.institutionUniversidade Federal de Lavras (UFLA)
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2019-10-06T17:06:59Z
dc.date.available2019-10-06T17:06:59Z
dc.date.issued2019-05-01
dc.description.abstractTo evaluate the effects of moderate dietary restriction and lipid supplementation on ovarian follicular development, hormonal and metabolic profile, thirty-five prepuberal ewe lambs were blocked by body weight and randomly assigned to treatments: AL–US (control) - unsupplemented-diet ad libitum (3.5% ether extract, n = 9); R-US - intake restricted to 85% of the AL–US diet (n = 9); AL-LS - lipid-supplemented-diet ad libitum (9.8% ether extract, n = 8); R-LS - intake restricted to 85% of the AL–LS diet (n = 9), from 95 ± 8 days of age until estrus or 7 months of age. Lipid supplementation did not reduce dry matter intake. Daily weight gain was greater in lambs fed ad libitum. Plasma glucose was greater in the R–LS treatment group, while serum insulin was less with lipid supplementation. There was a treatment by age interaction on total cholesterol, HDL cholesterol and triglyceride serum concentrations. Estrus was detected in 43% of the animals and the overall ovulation rate was 60%. The number of follicles, diameter of the largest follicle, body weight, age and serum progesterone at puberty did not differ among treatment groups. The mean diameter of the largest follicle was greater in lambs having than in those not having ovulations and increased with age in both groups. There was an interaction between the effects of occurrence of ovulation and age on the number of follicles between 3 and 5 mm and > 5 mm. Lipid supplementation and dietary restriction altered the metabolic profile in ewe lambs with no concomitant changes in values for reproductive variables.en
dc.description.affiliationDepartment of Animal Sciences Federal University of Lavras – UFLA
dc.description.affiliationDepartment of Veterinary Medicine Federal University of Lavras – UFLA
dc.description.affiliationDepartment of Statistics Federal University of Lavras - UFLA
dc.description.affiliationDepartment of Veterinary Medicine Laboratory of Endocrinology – UNESP
dc.description.affiliationUnespDepartment of Veterinary Medicine Laboratory of Endocrinology – UNESP
dc.format.extent152-164
dc.identifierhttp://dx.doi.org/10.1016/j.anireprosci.2019.03.020
dc.identifier.citationAnimal Reproduction Science, v. 204, p. 152-164.
dc.identifier.doi10.1016/j.anireprosci.2019.03.020
dc.identifier.issn0378-4320
dc.identifier.scopus2-s2.0-85063762332
dc.identifier.urihttp://hdl.handle.net/11449/190246
dc.language.isoeng
dc.relation.ispartofAnimal Reproduction Science
dc.rights.accessRightsAcesso aberto
dc.sourceScopus
dc.subjectCholesterol
dc.subjectInsulin
dc.subjectOvulation
dc.subjectProgesterone
dc.subjectRoasted soybean
dc.titleOvarian follicular development, hormonal and metabolic profile in prepubertal ewe lambs with moderate dietary restriction and lipid supplementationen
dc.typeArtigo
unesp.author.orcid0000-0002-4253-644X[4]
unesp.author.orcid0000-0001-5612-2750[6]

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