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Ovarian gene expression in collared peccary (Pecari tajacu Linnaeus, 1758) subjected to gonadotropin stimulation protocols.
Viana, Ana Clara N P C S; Freitas, Jeferson L S; Magalhães, Lívia C; Campos, Lívia B; Silva, Alexandre R; Oliveira, Moacir F; Freitas, Vicente J F; Melo, Luciana M.
Afiliação
  • Viana ACNPCS; Laboratory of Physiology and Control of Reproduction, Veterinary School, State University of Ceará (UECE), Fortaleza, Brazil.
  • Freitas JLS; Laboratory of Physiology and Control of Reproduction, Veterinary School, State University of Ceará (UECE), Fortaleza, Brazil.
  • Magalhães LC; Laboratory of Physiology and Control of Reproduction, Veterinary School, State University of Ceará (UECE), Fortaleza, Brazil.
  • Campos LB; Laboratory of Animal Germplasm Conservation, Department of Animal Science, Federal Rural University of the Semi-Arid (UFERSA), Mossoró, Brazil.
  • Silva AR; Laboratory of Animal Germplasm Conservation, Department of Animal Science, Federal Rural University of the Semi-Arid (UFERSA), Mossoró, Brazil.
  • Oliveira MF; Laboratory of Animal Germplasm Conservation, Department of Animal Science, Federal Rural University of the Semi-Arid (UFERSA), Mossoró, Brazil.
  • Freitas VJF; Laboratory of Physiology and Control of Reproduction, Veterinary School, State University of Ceará (UECE), Fortaleza, Brazil.
  • Melo LM; Laboratory of Physiology and Control of Reproduction, Veterinary School, State University of Ceará (UECE), Fortaleza, Brazil.
Reprod Domest Anim ; 56(2): 351-359, 2021 Feb.
Article em En | MEDLINE | ID: mdl-33259113
Ovarian response of collared peccaries (Pecari tajacu), after hormonal stimulation with gonadotropin association (eCG/hCG), was accessed by both gene expression and follicular development. Thus, collared peccaries (n = 8) were treated with the dose used for sows (swine dose, SWD) or with dose adjusted for peccary's weight (allometric dose, ALD). The gene expression of receptors was evaluated for both gonadotropins (FSHR and LHCGR) and growth factors (proteins codified by TGFßR-1, BMPR1-A and BMPR2 genes) in antral follicles, cortex and corpora haemorrhagica (CH). Five days after gonadotropin injection, all females presented CH. The ovulation rate was similar (p > .05) between SWD (4.00 ± 1.17) and ALD (2.50 ± 0.43) group. The total number of follicles per animal and amounts of small (<3 mm), medium (3-5 mm) and large (>5 mm) follicles was similar among groups. However, SWD produced large follicles heavier than ALD group, as accessed by weight of follicular wall biopsies. Ovarian follicles expressed both gonadotropin and growth factor receptors at levels which are independent from gonadotropin dose. In conclusion, the two gonadotropin doses (SWD and ALD) can be used for ovarian stimulation of collared peccary. Additionally, FSH and growth factors (TGFßR-1, BMPR1-A and BMPR2) receptors are more expressed in the early follicle development, while LH receptor seems to be more important in the final of follicular growth.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ovário / Artiodáctilos / Gonadotropina Coriônica Limite: Animals Idioma: En Revista: Reprod Domest Anim Assunto da revista: MEDICINA REPRODUTIVA / MEDICINA VETERINARIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha
Texto completo
Adicionar na Minha BVS
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XML
PubMed Links
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Ovário / Artiodáctilos / Gonadotropina Coriônica Limite: Animals Idioma: En Revista: Reprod Domest Anim Assunto da revista: MEDICINA REPRODUTIVA / MEDICINA VETERINARIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Brasil País de publicação: Alemanha