Early luteal development in Santa Inês ewes superovulated with reduced doses of porcine follicle‐stimulating hormone

Mariana Garcia Kako Rodriguez; Giovanna Serpa Maciel; Ricardo Andres Ramirez Uscategui; Victor José Correia Santos; Ricardo Perecin Nociti; Priscila Del Aguila da Silva; Marcus Antônio Rossi Feliciano; Felipe Zandonadi Brandão; Jeferson F. Fonseca; Maria Emilia Franco Oliveira

doi:10.1111/rda.13374

journal article Dec 04, 2018

Early luteal development in Santa Inês ewes superovulated with reduced doses of porcine follicle‐stimulating hormone

Mariana Garcia Kako Rodriguez

Giovanna Serpa Maciel Ricardo Andres Ramirez Uscategui

Victor José Correia Santos Ricardo Perecin Nociti

Priscila Del Aguila da Silva

Marcus Antônio Rossi Feliciano

Felipe Zandonadi Brandão

Jeferson F. Fonseca

Maria Emilia Franco Oliveira

Reproduction in Domestic Animals Vol. 54 No. 3 pp. 456-463 · Wiley

View at Publisher Save 10.1111/rda.13374

Abstract

ContentsThe aim was to compare the early luteal development in ewes superovulated with different doses of pFSH. Twenty‐nine Santa Inês ewes received a progesterone device (CIDR®) for 8 days. Gonadotrophic treatment started on Day 6: G200 (control, n = 9, 200 mg); G133 (n = 10, 133 mg); and G100 (n = 10, 100 mg of pFSH). On Day 6, all females received eCG (300 IU). B‐mode and spectral Doppler ultrasonography were performed daily during the early luteal phase (Days 11–15) to monitor the development of corpora lutea (CLs; dimensions) and ovarian arteries indices. CLs were also classified as normal or prematurely regressed (PRCL) on Day 15 by videolaparoscopy. Ewes from G100 and G133 showed gradual increase in luteal diameter during the early luteal phase (p < 0.001), whereas G200 animals presented increase from Day 11 to Day 13, and then decrease on Days 14 and 15 (p < 0.001). The G200 females showed greater percentage of PRCL (45.20%) than those of the other groups (p < 0.001). The normal CLs number was greater in G100 than in G133 (p = 0.04), while the PRCL number was greater in G200 than in the other groups (p = 0.03). Resistive index (RI) was greater in G200 than in G100 (p = 0.02). RI was lower in Day 12 than Day 15 (p = 0.02). Pulsatility index (PI) was greater on Days 14 and 15 (p < 0.01). In conclusion, the lowest dose of pFSH (100 mg) can be considered sufficient for an efficient superovulatory response in sheep, producing better CLs development dynamic in early luteal phase and ovarian blood perfusion and smaller number of PRCL than the traditional (200 mg) pFSH dose.

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References

Details

Published: Dec 04, 2018
Vol/Issue: 54(3)
Pages: 456-463
License: View

Authors

M

Mariana Garcia Kako Rodriguez

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

G

Giovanna Serpa Maciel

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

R

Ricardo Andres Ramirez Uscategui

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

V

Victor José Correia Santos

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

R

Ricardo Perecin Nociti

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

P

Priscila Del Aguila da Silva

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

M

Marcus Antônio Rossi Feliciano

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

F

Felipe Zandonadi Brandão

Faculdade de Veterinária Universidade Federal Fluminense (UFF) Niterói Brazil

J

Jeferson F. Fonseca

Empresa Brasileira de Pesquisa Agropecuária e Embrapa Caprinos e Ovinos Coronel Pacheco Brazil

M

Maria Emilia Franco Oliveira

Faculdade de Ciências Agrárias e Veterinárias UNESP—Universidade Estadual Paulista Jaboticabal Brazil

Funding

Coordenação de Aperfeiçoamento de Pessoal de Nível Superior Award: 001

Empresa Brasileira de Pesquisa Agropecuária Award: 02.13.06.026.00.03

Cite This Article

Mariana Garcia Kako Rodriguez, Giovanna Serpa Maciel, Ricardo Andres Ramirez Uscategui, et al. (2018). Early luteal development in Santa Inês ewes superovulated with reduced doses of porcine follicle‐stimulating hormone. Reproduction in Domestic Animals, 54(3), 456-463. https://doi.org/10.1111/rda.13374

Early luteal development in Santa Inês ewes superovulated with reduced doses of porcine follicle‐stimulating hormone

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