FR 39. Serving capacity in young rams: repeatability of an evaluation test

• J. Olivera ^[1] ; A. Ferraris ^[1] ; Elize Thera van Lier ^[2] ; Juan Burgueño ^[1] ; A. Lopez ^[1]
  1. [1] Universidad de la República

     Universidad de la República

     Uruguay

     
  2. [2] Facultad de Agronomía, Uruguay
• Localización: Archivos Latinoamericanos de Producción Animal, ISSN 1022-1301, ISSN-e 1022-1301, Vol. 5, Nº. Extra 3, 1997 (Ejemplar dedicado a: Proceedings XV ALPA meeting 2)
• Idioma: inglés
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• Resumen

  • The repeatability of one serving capacity (SC) pen-test in 10 two years old Merilin rams without prior sexual experience was investigated. The experiment was carried out in May 1996. Rams were individually penned with 2 oestrous ewes and given two 40- minute introductory tests for training purposes and four series of 40-minute tests over a single one month period. The variable recorded was the number of services during 20 and 40 minutes of observation. The test was found repeatable for 20 and 40 minutes (P < .01). Future trials should evaluate the repeatability of one serving capacity pen-test without oestrous ewes in rams without prior experience and to establish methods for identfying those animals that may permanently remain sexually inhibited.