Skip navigation
Please use this identifier to cite or link to this item:
Files in This Item:
File SizeFormat 
ARTIGO_RisksAssociatedDifferent.pdf566,86 kBAdobe PDFView/Open
Title: Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
Authors: Oliveira, Tamara Esteves de
Barcellos, Júlio Otávio Jardim
Whittier, Jack
Teixeira, Odilene de Souza
Freitas, David Santos de
Oaigen, Ricardo Pedroso
Dill, Matheus Dhein
Pimentel, Concepta Margaret McManus
Assunto:: Produção animal
Bovino de corte
Bovino - reprodução
Bovino - alimentação e rações
Issue Date: 2018
Publisher: Sociedade Brasileira de Zootecnia
Citation: OLIVEIRA, Tamara Esteves de et al . Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems. Revista Brasileira de Zootecnia, Viçosa, v. 47, e20180051, 2018. DOI: Disponível em: Acesso em: 08 mar. 2019. Epub Nov 29, 2018.
Abstract: This study assessed the risks of different management practices to increase pregnancy rate in beef cow-calf systems, aiming at assisting decision-making. The perception of 18 experts on animal sciences regarding the risks of 32 nutritional, breeding, and general management practices applied to increase pregnancy rate were evaluated through questionnaires. The experts were selected by a non-probability sampling of researchers on veterinary and animal sciences. In addition, five farmers and eight technical consultants were also selected. The questionnaire was applied during a face-to-face meeting. The risk of each practice was assessed according to four factors, namely, cost, technical knowledge, operational complexity, and flexibility, and an equation was developed to calculate this risk. The applied method allowed to determine the risk of each practice, obtaining results similar to those previously perceived by the experts. Operational complexity and cost had greater influence on the estimated risks compared with the other factors. Moreover, the increase of one unit in operational complexity and cost increased the perceived risk and the estimated risk scores in 0.43 and 0.28 points, respectively. Overall, the application of general management practices presented lower risk score compared with nutritional and breeding practices, which were not different from which other. Equations to estimate the risks of farm managers should routinely apply management practices to increase the efficiency of cow-calf production systems.
Licença:: Copyright © 2018 Sociedade Brasileira de Zootecnia. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Appears in Collections:FAV - Artigos publicados em periódicos

Show full item record Recommend this item " class="statisticsLink btn btn-primary" href="/handle/10482/33571/statistics">

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.