Cover Image

Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems

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 incre...

Full description

Main 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
Format: Artigo
Language: English
Published: Sociedade Brasileira de Zootecnia 2019
Subjects:
Produção animal
Bovino de corte
Bovino - reprodução
Bovino - alimentação e rações
Online Access: http://repositorio.unb.br/handle/10482/33571
http://dx.doi.org/10.1590/rbz4720180051
Tags: Add Tag
No Tags, Be the first to tag this record!
id ir-10482-33571
recordtype dspace
spelling ir-10482-335712019-03-08T14:38:34Z Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems 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 Produção animal Bovino de corte Bovino - reprodução Bovino - alimentação e rações 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. 2019-01-02T13:54:05Z 2019-01-02T13:54:05Z 2018 Artigo 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: http://dx.doi.org/10.1590/rbz4720180051. Disponível em: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982018000100711&lng=en&nrm=iso. Acesso em: 08 mar. 2019. Epub Nov 29, 2018. http://repositorio.unb.br/handle/10482/33571 http://dx.doi.org/10.1590/rbz4720180051 en Acesso Aberto Copyright © 2018 Sociedade Brasileira de Zootecnia. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. application/pdf Sociedade Brasileira de Zootecnia
institution REPOSITORIO UNB
collection REPOSITORIO UNB
language English
topic Produção animal
Bovino de corte
Bovino - reprodução
Bovino - alimentação e rações
spellingShingle Produção animal
Bovino de corte
Bovino - reprodução
Bovino - alimentação e rações
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
Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
description 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.
format Artigo
author 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
author_sort Oliveira, Tamara Esteves de
title Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
title_short Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
title_full Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
title_fullStr Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
title_full_unstemmed Risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
title_sort risks associated to different methods of increasing pregnancy rate of cows in cow-calf systems
publisher Sociedade Brasileira de Zootecnia
publishDate 2019
url http://repositorio.unb.br/handle/10482/33571
http://dx.doi.org/10.1590/rbz4720180051
_version_ 1641988500689518592
score 13.657419

Similar Items