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Title: Technical and economic efficiency of bovine weighing methods
Other Titles: Eficiência técnica e econômica de diferentes métodos de pesagem de bovinos
Keywords: Cattle raising - Automation
Animals handling
Precision animal science
Bovinocultura - Automação
Manejo de animais
Zootecnia de precisão
Issue Date: May-2018
Publisher: Universidade Estadual de Londrina
Citation: LOPES, M. A. et al. Technical and economic efficiency of bovine weighing methods. Semina: Ciências Agrárias, Londrina, v. 39, n. 3, p. 1167-1180, maio/jun. 2018.
Abstract: The objective of this study was to evaluate the technical and economic efficiency of different methods of cattle weighing, and to develop mathematical equations to estimate the breakeven point for the adoption of electronic weighing, i.e., to estimate how many animals are required for the acquisition and use of an electronic scale to be economically viable. The survey was conducted in confined beef cattle, from the Federal Institute of Education, Science and Technology in the south of Minas Gerais, IFSUL DE MINAS, Muzambinho Campus, from July to December 2014. Two methods of weighing cattle were evaluated: an electronic scale and a tape measure, using a barimetric tape for dairy cattle and a barimetric tape for beef cattle, and a conventional tape measure involving the conversion of centimeters into body weight using a specific table. Thirty-three animals identified with plastic ear tags were weighed using each method. Animals of the Nellore, Senepol, Girolando, and Red-angus breeds, aged 0–1, 1–2, and 2–3 years, were weighed 402 times in total. The time taken to weigh animals with the electronic scale was the lowest, followed by that with the barimetric tape, and that with conventional tape measure with conversion. The electronic scale exhibited the greatest technical efficiency, owing to the lack of error and the lowest time required to weigh animals. However, the costs associated with the use of this equipment were the highest, which depended on the purchasing cost. The mathematical equations developed will help technicians and cattle farmers to rapidly and precisely estimate the minimum number of animals that should compose a production system to ensure economic viability for the adoption of an electronic method to weigh cattle.
Appears in Collections:DMV - Artigos publicados em periódicos

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