Data/hora: 22/09/2024 18:47:56

Biblioteca(s): 	Embrapa Pecuária Sul.	
Data corrente: 	31/07/2019	
Data da última atualização: 	08/10/2020	
Autoria: 	SIMÕES, M. R. S.; LEAL, J. J. B.; MINHO, A. P.; GULIAS GOMES, C. C.; MACNEIL, M. D.; COSTA, R. F.; JUNQUEIRA, V. S.; SCHMIDT, P. I.; CARDOSO, F. F.; BOLIGON, A. A.; YOKOO, M. J. I.	
Afiliação: 	Michele R. S. Simões, UFPEL; JOAL JOSE BRAZZALE LEAL, CPPSUL; ALESSANDRO PELEGRINE MINHO, CPPSE; CLAUDIA CRISTINA GULIAS GOMES, CPPSUL; Michael D. MacNeil, University of the Free State; Rodrigo F. Costa, UFPEL; Vinícius S. Junqueira, UFV; Patrícia I. Schmidt, UFPEL; FERNANDO FLORES CARDOSO, CPPSUL; Arione A. Boligon, UFPEL; MARCOS JUN ITI YOKOO, CPPSUL.	
Título: 	Breeding objectives of Brangus cattle in Brazil.	
Ano de publicação: 	2020	
Fonte/Imprenta: 	Journal of Animal Breeding and Genetics, v. 137, n. 2, p. 177-188, Mar. 2020.	
DOI: 	10.1111/jbg.12415	
Idioma: 	Inglês	
Conteúdo: 	Our goal was to define a breeding objective for Brangus beef cattle in Brazil. Bioeconomic models were produced and used to estimate economic values (EVs). The scenarios simulated were typical full-cycle beef production systems that are used in tropical and subtropical regions. The breeding objective contained pregnancy rate (PR), warm carcass weight (WCW), mature cow weight (MCW), number of nematode eggs per gram of faeces (EPG) and tick count (TICK). Two models were used in series to estimate the EV. A deterministic model was used to simulate effects of PR, WCW and MCW on profitability with a constant parasite load. Subsequently, stochastic models were used to estimate economic values for TICK and EPG as consequences of their environmental effects on weight gains, mortality and health costs. The EV of PR, WCW, MCW, EPG and TICK, was US$1.59, US$2.11, -US$0.24, -US$5.35 and -US$20.88, respectively. Results indicate positive emphasis should be placed on PR (12.49%) and WCW (65.07%) with negative emphasis on MCW (13.92%), EPG (2.77%) and TICK (5.75%). In comparison with the indexes usually used, these results suggest a reformulation in the selection indexes of the beef production system in tropical and subtropical regions in order to obtain greater profitability.	
Palavras-Chave: 	Gado Brangus.	
Thesagro: 	Bovino; Bovinocultura; Gado de Corte; Seleção.	
Categoria do assunto: 	L Ciência Animal e Produtos de Origem Animal	
Registro original: 	Embrapa Pecuária Sul (CPPSUL)	
Exemplares: 	CPPSUL - (14555-1) - UPC - AP - DD -  -  -  - DIS