Data/hora: 23/09/2024 10:40:10

Biblioteca(s): 	Embrapa Suínos e Aves.	
Data corrente: 	01/11/2019	
Data da última atualização: 	01/11/2019	
Autoria: 	FREITAS, L. A. de; SAVEGNAGO, R. P.; GRUPIONI, N. V.; RAMOS, S. B.; STAFUZZA, N. B.; FIGUEIREDO, E. A. P. de; SCHMIDT, G. S.; LEDUR, M. C.; MUNARI, D. P.	
Afiliação: 	LUARA AFONSO DE FREITAS, UNESP/Jaboticabal; RODRIGO PELICIONI SAVEGNAGO, UNESP/Jaboticabal; NATALIA VINHAL GRUPIONI, UNESP/Jaboticabal; SALVADOR BOCCALETTI RAMOS, UNIFRAN; NEDENIA BONVINO STAFUZZA, UNESP/Jaboticabal; ELSIO ANTONIO PEREIRA DE FIGUEIREDO, CNPSA; GILBERTO SILBER SCHMIDT, CNPSA; MONICA CORREA LEDUR, CNPSA; DANÍSIO PRADO MUNARI, UNESP/Jaboticabal.	
Título: 	Reduced-rank estimation of genetic parameters for egg production traits and cluster analyses with predicted breeding values.	
Ano de publicação: 	2019	
Fonte/Imprenta: 	Acta Agriculturae Scandinavica, Section A ? Animal Science, v. 68, n. 2, p. 81-86, 2019	
DOI: 	10.1080/09064702.2019.1580308	
Idioma: 	Inglês	
Conteúdo: 	Abstract: The aims of this study were to compare the suitability of the multi-trait (MUT) model to estimate genetic parameters with that of 13 reduced-rank principal component models (PC1 to PC13), and then to explore the additive genetic patterns of the breeding values obtained from these using clustering analyses of egg production traits. A total of 1,212 records were used to estimate genetic parameters using the MUT and PC models. The PC4 model was the best representation of the data since it had a lower AIC value and was more parsimonious than the MUT model. The estimated heritability of the age at the first egg (AFE) trait from this model was 0.28 ± 0.06, and the estimated genetic correlation between AFE and total egg production (TP) was &#8722;0.52 ± 0.23. Potentially animals from cluster 2 are more likely to be in the selected group to help improve the egg production.	
Palavras-Chave: 	Herdabilidade; Produção de ovos.	
Thesagro: 	Genética Animal.	
Thesaurus Nal: 	Breeding; Egg production; Heritability.	
Categoria do assunto: 	--	
Registro original: 	Embrapa Suínos e Aves (CNPSA)	
Exemplares: 	CNPSA - (21675-1) - UPC - AP - DD -  -  -  - DIS