INVESTIGADORES
ROGBERG MUÑOZ Andres
artículos
Título:
Genetic and management factors affecting beef quality in grazing Hereford steers
Autor/es:
MELUCCI, LM; PANARACE, M; FEULA, P; VILLARREAL, EL; GRIGIONI, G; CARDUZA, F; SORIA, LA; MEZZADRA, CA; ARCEO, ME; PAPALEO MAZZUCCO, J; CORVA, PM; IRURETA, M; ROGBERG MUÑOZ, A; MIQUEL, MC
Revista:
MEAT SCIENCE
Editorial:
ELSEVIER SCI LTD
Referencias:
Lugar: Amsterdam; Año: 2012 vol. 92 p. 768 - 774
ISSN:
0309-1740
Resumen:
Attributes contributing to differences in beef quality of 206 Hereford
steers finished on pasture were assessed. Beef quality traits evaluated
were: Warner?Bratzler meat tenderness and muscle and fat color at one
and seven days after slaughter and trained sensory panel traits
(tenderness, juiciness, flavor, and marbling) at seven days. Molecular
markers were CAPN1 316 and an SNP in exon 2 on the leptin gene (E2FB).
Average daily live weight gain, ultrasound monthly backfat thickness
gain and rib-eye area gain were estimated. Molecular markers effects on
meat quality traits were analyzed by mixed models. Association of meat
quality with post weaning growth traits was analyzed by canonical
correlations. Muscle color and marbling were affected by CAPN1 316 and
E2FB and Warner?Bratzler meat tenderness by the former. The results
confirm that marker assisted selection for tenderness is advisable only
when beef aging is a common practice. The most important sources of
variation in tenderness and color of meat remained unaccounted for.