Análisis de imagen a distancia para la determinación de medidas biometricas en vacuno

• S.R. Silva ^[1] ; J.O.L. Cerqueira ^[2] ; M. Silvestre ^[1] ; C. Guedes ^[1] ; V. Santos ^[1] ; A. Silva ^[1] ; J.C. Almeida ^[1] ; J.P. Araujo ^[3]
  1. [1] Universidade de Trás-os-Montes e Alto Douro

     Universidade de Trás-os-Montes e Alto Douro

     Vila Real (São Pedro), Portugal

     
  2. [2] Instituto Politécnico de Viana do Castelo

     Instituto Politécnico de Viana do Castelo

     Viana do Castelo (Monserrate), Portugal

     
  3. [3] CIMO

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• Localización: XV Jornadas sobre Producción Animal: 14 y 15 de mayo de 2013, Zaragoza / Jorge Hugo Calvo Lacosta (aut.), Isabel Casasús Pueyo (aut.), Margalida Joy Torrens (aut.), Javier Álvarez Rodríguez (aut.), Luis Varona Aguado (aut.), Begoña Panea Doblado (aut.), Carlos Calvete Margolles (aut.), Joaquín Balcells Teres (aut.), Vol. 1, 2013, ISBN 978-84-695-7684-7, págs. 25-27
• Idioma: español
• Títulos paralelos:
  • Morphological measurements by digital image analysis in cows
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  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • Digital image analysis was performed to investigate its capability to determine morphological measurements of cattle. Morphological measurements of cattle are important in defining characteristics of the breed or productive and reproductive performance of the animals. Determination of morphological measurements is always costly, time consuming and causes reduction of animal welfare. So, the aim of this study is the development of equipment to determine morphological measurements using image analysis. For this work a group of 49 dairy cows were measured for morphological height, length and width with a measuring stick. For the morphological measurements using image analysis an apparatus was constructed consisting of two red lasers mounted in parallel position on a structure and a video camera between them to record images. The lasers project two points on the animal which are used as scale. The images captured were analyzed and morphological measurements equivalent to those obtained with measuring stick were achieved. The data were subjected to a descriptive analysis and correlations between measurements obtained by the two methods. The error was also analyzed. A significant correlation was observed between measurements obtained with the two methods (r between 0.79 and 0.95, P <0.01). The error varies between 1.5 and 2%. It was concluded that with equipment similar the one described in this paper is possible to perform morphological measurements of dairy cows.