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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Breeding goals and economic values for Nellore cattle in a full-cycle production system

Full text
Author(s):
Heverton Luis Moreira [1] ; Rodrigo Pelicioni Savegnago [2] ; Luara Afonso de Freitas [3] ; Raysildo Barbosa Lôbo ; Luiz Antonio Framartino Bezerra [5] ; Claudia Cristina Paro de Paz
Total Authors: 6
Affiliation:
[1] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Genética - Brasil
[2] Instituto de Zootecnia. Centro Avançado de Pesquisa de Bovinos de Corte - Brasil
[3] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Genética - Brasil
[5] Universidade de São Paulo. Faculdade de Medicina de Ribeirão Preto. Departamento de Genética - Brasil
Total Affiliations: 6
Document type: Journal article
Source: Acta Sci., Anim. Sci.; v. 41, 2019-02-25.
Abstract

ABSTRACT. The objective of this study was to develop a bio-economic model for the estimation of economic values of economically important traits in a full-cycle beef cattle production system. The bio-economic model calculated economic values by simulating the impact of changes in the profit of the system consisting of a 1% increase in each trait of the breeding objective, while the other traits were kept constant. The bio-economic model was effective in estimating the sources of revenues and expenses of the production system. The estimated economic values were, in the order of importance for the full-cycle system, R$ 3.69 for male slaughter weight, R$ 3.63 for male weaning weight, R$ 3.58 for weaning rate, R$ 3.40 for female slaughter weight, R$ 2.30 for female weaning weight, and R$ 0.13 for mature cow weight. The results showed that all traits evaluated in the full-cycle system had positive economic impact, indicating that selection would increase profitability maximizing the expected response for the traits of the breeding goal. (AU)

FAPESP's process: 16/10583-1 - Genetic evaluation of growth characteristics and resistance to worms in sheep breed Santa Inês using random regression models and cluster analysis
Grantee:Luara Afonso de Freitas Januário
Support Opportunities: Scholarships in Brazil - Master
FAPESP's process: 13/20091-0 - Prediction of breeding values in a experimental mice population using selective genotyping
Grantee:Rodrigo Pelicioni Savegnago
Support Opportunities: Scholarships in Brazil - Post-Doctoral