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Effects of Tethering and Loose Housing on the Meat Quality of Hanwoo Bulls
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 Title & Authors
Effects of Tethering and Loose Housing on the Meat Quality of Hanwoo Bulls
Lee, Sung Ki; Panjono, Panjono; Kang, Sun Moon; Jung, Youn Bok; Kim, Tae Sil; Lee, Ik Sun; Song, Young Han; Kang, Chang-Gie;
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This study was carried out to investigate the effects of housing system on the carcass and meat qualities of Hanwoo (Korean cattle) bulls. Fourteen 6 months-old male calves were randomly divided into two groups. The first group was individually tethered using double neck-bar tethers. The second group was collectively loose-housed in the pen. They were raised for 15 months prior to slaughter. At 24 h post-slaughter chilling, the carcasses were weighed and evaluated by official grader for carcass traits. At 48 h post-slaughter chilling, the M. longissimus at the thoracic vertebra from each carcass was collected and stored at for 7 days for meat quality analysis. There were no significant differences in dressing percentage and carcass yield index between groups. Meat from loose bulls had lower marbling score (p<0.05) and fat content (p<0.01) but higher PUFA concentration (p<0.001) than that from tethered bulls. There were no significant differences physical and sensory properties, aroma pattern, TBARS value, metmyoglobin concentration and CIE color values during refrigerated storage between groups. Compared to tethering, loose-housing bulls produced lower fat content and healthier meat without different physical properties, acceptability, and lipid and color stabilities.
Housing System;Tethering;Loose Housing;Meat Quality;Hanwoo Bull;
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