Data/hora: 09/06/2024 00:43:19

Biblioteca(s): | Embrapa Caprinos e Ovinos; Embrapa Gado de Leite.
Data corrente: | 09/12/2019
Data da última atualização: | 06/02/2024
Autoria: | MACIELA, G. S.; RODRIGUEZA, M. G. K.; SANTOS, V. J. C.; RAMIREZ USCATEGUI, R. A.; NOCITI, R. P.; MARONEZI, M. C.; OLIVEIRA, C. S.; FELICIANO, M. A. R.; VICENTE, W. R. R.; FONSECA, J. F. da; OLIVEIRA, M. E. F.
Afiliação: | GIOVANNA SERPA MACIELA, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; MARIANA GARCIA KAKO RODRIGUEZA, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; VICTOR JOSÉ CORREIA SANTOS, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; RICARDO ANDRES RAMIREZ USCATEGUI, Federal University of Jequitinhonha and Mucuri Valleys (UFVJM) - Unaí, MG, Brazil; RICARDO PERECIN NOCITI, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; MARJURY CRISTINA MARONEZI, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; CLARA SLADE OLIVEIRA, CNPGL; MARCUS ANTÔNIO ROSSI FELICIANO; WILTER RICARDO RUSSIANO VICENTE, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil; JEFERSON FERREIRA DA FONSECA, CNPC; MARIA EMILIA FRANCO OLIVEIRA, São Paulo State University (Unesp) - Jaboticabal, SP, Brazil.
Título: | Follicular dynamics and in vivo embryo production in Santa Inês ewes treated with smaller doses of pFSH.
Ano de publicação: | 2019
Fonte/Imprenta: | Animal Reproduction Science, v. 209, article 106137, 2019.
DOI: | https://doi.org/10.1016/j.anireprosci.2019.106137
Idioma: | Inglês
Conteúdo: | Abstract: To evaluate follicular dynamics, there was assessment of superovulatory response and in vivo embryo production in ewes treated with relatively smaller doses of exogenous pFSH than typically used in combination with a dose of eCG at the beginning of the gonadotropin treatment period. Santa Inês ewes (n?=?24) were randomly divided into three groups, based on mg dose of pFSH administered: G200 (n?=?8), G133 (n?=?8) and G100 (n?=?8) in eight decreasing doses at 12?-h intervals. All ewes were treated with 300 IU of eCG concomitantly starting with first pFSH administration. Ovulatory follicular dynamics and follicular wall vascularization (FWV) were evaluated using a B-mode and color Doppler ultrasonic machine, respectively. Superovulatory response and embryo production were evaluated 6 days after estrous detection. In the G200?group, the preovulatory follicle size (PFS) were less (P?<? 0.05), ovulation time later (P?<? 0.05), and PFS rate greater (P?<? 0.05); while in the G100 group ovulation rate, and number and percentage of unfertilized eggs were greater (P?<? 0.05) than in the G133 group (P?<? 0.05). Number and percentage of viable embryos were greater in the G200 and G100 compared to G133 group (P?<? 0.05). The dose of 100 mg of FSH was as efficacious as the traditional dose of 200 mg, in combination with a dose of eCG, for superovulatory response and viable embryo production but there was a greater percentage of unfertilized eggs with this treatment.
Palavras-Chave: | Apoptotic embryonic cells; Follicular wall vascularization; Ovine; Ovulatory follicular wave.
Thesaurus Nal: | Animal reproduction; Ewes; Sheep; Superovulation.
Categoria do assunto: | L Ciência Animal e Produtos de Origem Animal
Registro original: | Embrapa Gado de Leite (CNPGL)

Exemplares:

CNPC - (39349-1) - UPC - AP - DD -  -  -  - DIS
CNPGL - (24855-1) - UPC - AP - DD -  -  -  - DIS