Data/hora: 23/09/2024 09:31:17

Biblioteca(s): 	Embrapa Gado de Leite; Embrapa Recursos Genéticos e Biotecnologia; Embrapa Tabuleiros Costeiros.	
Data corrente: 	13/09/2022	
Data da última atualização: 	12/12/2022	
Autoria: 	CHAVES, M. S.; RAMOS, A. F.; BRASIL, N. H. M.; FERREIRA-SILVA, J. C.; PAIVA, S. R.; MELO, E. O.; BARROS, I. de; FREITAS, V. J. de F.; RIBEIRO JUNIOR, V.; BARTOLOMEU, C. C.; OLIVEIRA, M. A. L. de; AZEVEDO, H. C.	
Afiliação: 	MAIANA SILVA CHAVES, Universidade Federal Rural de Pernambuco; ALEXANDRE FLORIANI RAMOS, Cenargen; NATHALIA HACK MOREIRA BRASIL; JOSÉ CARLOS FERREIRA-SILVA, Universidade Federal Rural de Pernambuco; SAMUEL REZENDE PAIVA, Cenargen; EDUARDO OLIVEIRA MELO, Universidade Federal do Tocantins; INACIO DE BARROS, CNPGL; VICENTE JOSÉ DE FIGUEIRÊDO FREITAS, Universidade Estadual do Ceará; VALDIR RIBEIRO JUNIOR, Universidade Federal de Sergipe; CLÁUDIO COUTINHO BARTOLOMEU, Universidade Federal Rural de Pernambuco; MARCOS ANTONIO LEMOS DE OLIVEIRA, Universidade Federal Rural de Pernambuco; HYMERSON COSTA AZEVEDO, CPATC.	
Título: 	Use of logistic models to evaluate the response of superovulation treatment and embryo production in Santa Inês ewes.	
Ano de publicação: 	2022	
Fonte/Imprenta: 	Tropical Animal Health and Production, v. 54, 276, 2022.	
DOI: 	https://doi.org/10.1007/s11250-022-03310-8	
Idioma: 	Inglês	
Conteúdo: 	The study aimed to verify the infuence of the FecGE mutation in superovulated ewes and to evaluate the probability of logistic models to determine the response capacity of these ewes to superovulatory treatment. Santa Inês ewes (n =29) were genotyped for the FecGE mutation and separated for their genotype group in carriers of the mutant E allele (FecGE/E, FecG+/E) and non-carrier (FecG+/+) alleles. The ewes underwent hormonal treatment for superovulation. Aside from the genotypes, variables included in the statistical model were reproductive status (empty, early lactation, or late lactation), age (>or<6 years), and number of births (nulliparous, primiparous, multiparous). The carriers of the mutation could be discriminated from the non-carriers based on the number of corpora lutea, rate of frozen embryos, and fecundity. Recovery rate was signifcantly higher (P<0.05) in FecGE/E (94.31%) compared to FecG+/E (63.15%) and FecG+/+ (61.90%) (P<0.05), whereas fecundity rate of FecG+/+ ewes (50.76%) was signifcantly higher than FecG+/E (18.96%) and FecGE/E (32.53%) (P<0.05). We determined in this study that the response to superovulation and embryo production can be discriminated between FecGE/E and FecG+/E ewes in relation to the FecG+/+ genotype. Logistic models that included reproductive status and mutation, or reproductive status and age, or reproductive status and number of births were efective in predicting the response to superovulatory treatment.	
Palavras-Chave: 	Fertilização; Modelo logístico.	
Thesagro: 	Embrião Animal; Hormônio Animal; Ovário; Ovelha; Ovino; Reprodução Animal; Superovulação.	
Thesaurus Nal: 	Animal reproduction; Embryo (animal); Hormones; Sheep; Superovulation.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Gado de Leite (CNPGL)	
Exemplares: 	CNPGL - (25759-1) - UPC - AP - DD -  -  -  - DIS
CPATC - (26036-1) - UPC - AP - DD -  -  -  - DIS
CENARGEN - (38915-1) - UPC - AP - DD -  -  -  - DIS