Relaciòn entre medidas biométricas y peso vivo en vacas lecheras de raza frisona

• J.P. Araujo ^[4] ; J.O.L. Cerqueira ^[1] ; C. Mendes ^[1] ; I. Penedo ^[2] ; A. Iglesias ^[3] ; V. Cadavez ^[4]
  1. [1] Instituto Politécnico de Viana do Castelo

     Instituto Politécnico de Viana do Castelo

     Viana do Castelo (Monserrate), Portugal

     
  2. [2] Institut de Recerca i Tecnologia Agroalimentaries

     Institut de Recerca i Tecnologia Agroalimentaries

     Barcelona, España

     
  3. [3] Universidade de Santiago de Compostela

     Universidade de Santiago de Compostela

     Santiago de Compostela, España

     
  4. [4] 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.), Joaquim Barcells Teres (aut.), Vol. 1, 2013, ISBN 978-84-695-7684-7, págs. 22-24
• Idioma: español
• Títulos paralelos:
  • Relationship between biometrics measurements and liveweight of friesian dairy cows
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  • Texto Completo Libro  1 (pdf)   2 (pdf) 
• Resumen

  • This biometric study has been carried with 4 zoometric measurements and the live weight on a total of 236 Friesian dairy cows of 4 dairy farms with milking robot. The average values for the measures (cm) were: front height (AlCru) 139.83r4.77; rump height (AlGrup); 144.92r4.43; hip width (AnGrup) 56.49r3.99 and thorax perimeter (PeTor) 202.62r10,01. With regard to the coefficient of variation, this one was within a rank of 3.06% in the rum height and 7.07% in the hip with. The average live weight (PeViv) was of 609.55r80.16 kg, presenting a coefficient of variation of 13.15%. All the phenotypic correlations between zoometric variables and live weight were significant (P<0.001). The highest values take place between thorax perimeter/live weight (0.83), front height/rump height (0.78), and hip width/ thorax perimeter (0.71). Live body weight had a linear relationship with thoracic perimeter with the following equation: PevViv = 6.6679 * PeTor – 741.5. One principal component analysis was computed. The first component accounted for 71.9% of the variation. The variables more correlated with this component are the thorax perimeter, live weight and hip width, expressing form or morphology. The second factor is mainly related with size, and was associated with front and rump height (13.6% of the total variance)