Data/hora: 10/06/2024 17:08:11

Biblioteca(s): | Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Tabuleiros Costeiros.
Data corrente: | 06/04/2021
Data da última atualização: | 29/04/2022
Autoria: | CHAVES, M. S.; AZEVEDO, H. C.; LUZ, V. B.; FERREIRA-SILVA, J. C.; BARROS, I. de; PAIVA, S. R.; MELO, E. de O.; PADILHA, D. de M. M.; FREITAS, V. J. de F.; BARTOLOMEU, C. C.; OLIVEIRA, M. A. L.
Afiliação: | MAIANA SILVA CHAVES, UFRPE; HYMERSON COSTA AZEVEDO, CPATC; VALESCA BARRETO LUZ, CESMAC; JOSÉ CARLOS FERREIRA-SILVA, UFRPE; INACIO DE BARROS, CNPGL; SAMUEL REZENDE PAIVA, Cenargen; EDUARDO DE OLIVEIRA MELO, Cenargen; DEBORAH DE MELO MAGALHÃES PADILHA, UNP; VICENTE JOSÉ DE FIGUEIRÊDO FREITAS, FACULTY OF VETERINARY, FORTALEZA; CLÁUDIO COUTINHO BARTOLOMEU, UFRPE; MARCOS ANTÔNIO LEMOS OLIVEIRA, UFRPE.
Título: | Occurrence, morphology, and morphometry of follicles containing multiple oocytes in FecGE mutant Santa Inês ewes.
Ano de publicação: | 2021
Fonte/Imprenta: | Animal Reproduction Science, v. 226, 106690, 2021.
ISSN: | 0378-4320
DOI: | https://doi.org/10.1016/j.anireprosci.2021.106690
Idioma: | Inglês
Conteúdo: | This study was conducted to characterize the morphology and morphometry of follicles containing multiple oocytes (MOFs) and determine the association with the FecGE mutation in Santa In?es ewes. Based on the genotypes, 65 ewes were characterized as being homozygous wild-type (n= 25; FecG+/+), heterozygous mutant (n = 27, FecG+/E), and homozygous mutant (n = 13, FecGE/E ). The variables evaluated were follicle developmental stage, number of oocytes per follicle, morphology, and morphometry of MOFs. The FecGE mutation did not affect the frequency of MOFs (P > 0.05) (3.0 % in FecG+/+; 3.3 % in FecG+/E ; and 3.5 % in FecGE/E). The greater viability (P < 0.05) of MOFs was identified in transitory stage of the FecGE/E (95.0 %) and FecG+/E (90.9 %) when compared to the FecG+/+ genotype (73.3 %). Furthermore, the morphology of transitory follicles with two oocytes was the variable and when evaluated was the most reliable determinant for predicting which ewes had an FecGE mutation. In conclusion, the FecGE mutation did not affect the frequency of MOFs. The ewes with FecGE mutation had a greater frequency of morphologically normal MOFs in the transitory stage. Furthermore, the ewes with the FecGE mutation had a greater likelihood of having MOFs containing two morphologically normal oocytes.
Palavras-Chave: | GDF-9; Multioócito; Multioocyte; Ovine; Prolificacy; Prolificidade.
Thesagro: | Mutação; Ovelha; Ovino.
Thesaurus Nal: | Mutation.

Categoria do assunto:

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L Ciência Animal e Produtos de Origem Animal

Registro original: | Embrapa Tabuleiros Costeiros (CPATC)

Exemplares:

CENARGEN - (38510-1) - UPC - AP - DD -  -  -  - DIS
CPATC - (25862-1) - UPC - AP - DD -  -  -  - DIS
CNPGL - (25250-1) - UPC - AP - DD -  -  -  - DIS