Vol. 25 No. 2 (2015): Revista Ciência Animal
Resumo Expandido - Artigos Originais e Relatos de Caso

ELECTRONIC ESTRUS DETECTION IN DAIRY COWS: A REVIEW

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  • Gisvani Lopez de Vasconcelos,
  • Marcos Aurélio Lopes,
  • Eduardo mitke Brandão Reis
Gisvani Lopez de Vasconcelos
Universidade Federal de Lavras
Marcos Aurélio Lopes
Universidade Federal de Lavras
Eduardo mitke Brandão Reis
Universidade Federal do Acre

Published 2024-06-17

Keywords

  • Automation,
  • cattle farming,
  • precision animal husbandry,
  • estrous cycle

How to Cite

VASCONCELOS, G. L. de; LOPES, M. A.; REIS, E. mitke B. ELECTRONIC ESTRUS DETECTION IN DAIRY COWS: A REVIEW. Ciência Animal, [S. l.], v. 25, n. 2, p. 48–59, 2024. Disponível em: https://revistas.uece.br/index.php/cienciaanimal/article/view/13182. Acesso em: 31 jan. 2026.
Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Abstract

Efficiency in detecting estrus is essential to provide viability in animal production, with an effect on the calving interval (IEP), conception rate and fertility in herds subjected to artificial insemination (AI). This condition must be sought, as activities related to reproduction are much more intense and failures would lead to serious management problems, with major economic repercussions. The objective was to present a review of the literature on the electrical detection of estrus in dairy cows, addressing physical activity meters, with the pedometer and the collar; pressure sensitive mount detectors, such as radio telemetry; measurement of electrical impedance of vaginal mucus; video cameras; and method using biosensors to quantify progesterone in milk. It can be concluded that these electronic methods of astro detection are highly effective, especially when they are associated with the visual observation method of estrous detection. Among all the methods, it was found in this study that the pedometer is the most used and most effective. Radio telemetry stands out for monitoring mountain activity, recording the time and duration; It is quite efficient and can be used to indicate the beginning and end of estrus, showing the best time to perform artificial insemination

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