TI 03. Yield grading beef carcasses from the Mideastern region of Venezuela

D. Mansutti ^[1] ; S. Calzadilla ^[1] ; Justo Gonzalez ^[1] ; Nelson Huerta-Leidenz ^[2] ; Argenis Rodas-Gonzalez ^[2]
1. [1] Universidad de Oriente
  
  Universidad de Oriente
  
  Venezuela
2. [2] La Universidad del Zulia
  
  La Universidad del Zulia
  
  Venezuela
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
- Analyses of variance of cut-out data (percentages of beef cuts, bone or trimmed fat) from 36 bulls were calculated to validate effectiveness of two grading criteria to segregate groups of carcasses with distinct commercial composition. Bull carcasses graded A (n = 13), B (n = 14) or C (n = 9) by the official carcass grade (OCG) and 2 (n = 5), 3 (n = 16) or 4 (n = 11) by the Yield Index (IRC). Only four out of the 19 individual carcass components under study were significantly affected by the OCG. Moreover, mean separation indicated a poor performance of OCG (AIRC4) but no differences were found between IRC 3 and IRC 4. To accomplish their objectives, revision of the present grading system should consider the use of a prediction equation to better segregate groups of beef carcasses by yield.