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Impact of quality attributes in the price of Nellore breed sold at auction: an application of the hedonic This study measures the impact on the price of quality attributes in Nelore steer sold at auction by a particular methodology, based on the theory of hedonic prices. To this end, we used as a sample three auctions 368 observations – of a standard farm, Nelore Jandaia. Thus, the attributes of animals that contributed most to the price formation were the genetic quality as a whole, expressed through the Total Genetic Merit MGT, and the overall phenotypic quality, as demonstrated by the index EPMURAS. In a second model, more specific, added more value to young breeding characteristics related to precocity and fertility the genetic side of the Expected Progeny Difference EPD for scrotal circumference at 365 days (dpe365) and on the phenotypic note of precocity. For example, animals with excellent MGT had an average premium of 22% more than for those considered as good, along with the excellent EPMURAS had a premium of 11% over rated as very good. For each point on precocity and DEP dpe365 the value of animals traded increases, respectively, 5% and 5.8%, ceteris paribus. From the above, we conclude that if the farmers devoted to the improvement of their herds give priority in their selection goals animals with excellent attributes of fertility and precocity will receive premium for it. In other words, focus the cattle selection on fertility and precocity adds value to animals.

Avaliação do impacto dos atributos de qualidade em tourinhos de elite da raça nelore comercializados em leilão: uma aplicação do método hedônico