Comparison of organoleptic quality and composition of beef from suckler bulls from different production systems

Autor: G.B. Mezgebo, Edward G. O'Riordan, Frank J. Monahan, R. I. Richardson, Aidan P. Moloney, Mark McGee
Rok vydání: 2016
Předmět:
Zdroj: Animal, Vol 11, Iss 3, Pp 538-546 (2017)
G, M, Moloney, AP, E, OR, M, M, Richardson, I & FJ, M 2017, ' Comparison of organoleptic quality and composition of beef from suckler bulls from different production systems ', animal, vol. 11, no. 3, pp. 538-546 . https://doi.org/10.1017/S1751731116001944
ISSN: 1751-732X
DOI: 10.1017/S1751731116001944
Popis: Bull beef production is traditionally based on high concentrate rations fed indoors. Inclusion of grazed grass, which is generally a cheaper feed, would decrease the cost of bull beef production, but may affect beef quality. Accordingly, the organoleptic quality and composition of beef from Continental-sired suckler bulls (n = 126) assigned to either: ad libitum concentrates to slaughter (C), grass silage ad libitum for 120 days (GS) followed by C (GSC), or GS, followed by 100 days at pasture and then C (GSPC) and slaughtered at target carcass weights (CW) of 360, 410 or 460 kg was examined. Tenderness, flavour liking and overall liking were lower (P < 0.05) for GSPC than for C and GSC. Intramuscular fat content and soluble collagen proportion were lower (P < 0.05) for GSPC than GSC which was lower (P < 0.05) than C. Soluble collagen proportion was lower (P < 0.05) for 460 kg than 410 kg CW, which was lower (P < 0.05) than 360 kg CW. Inclusion of a grazing period decreased the ratings of tenderness, flavour liking and overall liking but age of the bulls at slaughter had no clear influence on sensory characteristics.
Databáze: OpenAIRE