This study investigate the effects of illegal administration of Dexamethasone on meat quality of Friesian bulls. Twenty finishing Frisian bulls (initial LW=440±53.4 and age=387±36.9 days), were randomly divided into three groups: HD (n=6), LD (n=6) and C (n=8). The HD and LD groups were respectively administered 1.4 and 0.7 mg head/d of oral dexamethasone-21-sodium-phosphate for 60 days and slaughtered after a suspension period of 26 days. The third group (C) served as control. Samples of m. longissimus thoracis and lumborum were taken in order to evaluate: meat color, thawing loss, WB peak and break on cooked meat, drip and cooking losses, meat cooking shrinkage (MCS), MCS cooking and cooling losses, WHC total and halo area and WHCtrend. The treated groups showed a significant lower thawing loss (HD:7.0ab, LD:5.6a, C:7.2b %), WB peak (HD:78.8aA, LD:94.1a, C:114.8bB N) and break (HD:66.4aA, LD:83.9b, C:97.5bB N); the meat was lightish (HD:38.5a, LD:37.1ab, C:35.6b), reddish (HD:24.8AB, LD:25.4A, C:24.0B), yellowish (HD:8.7a, LD:8.7a, C:7.7b), higher chrome (HD:26.7a, LD:26.8a, C:25.2b) and hue (HD:0.33a, LD:0.33a, C:0.31b); MCS was lower in control group (HD:20.9ab, LD:22.8a, C:19.5b %). The Canonical Discriminant Analysis shows a significant separation between control and treated groups due to thawing loss, red-green index (a*), WB break, cooking loss mcs. The illegal use of Dexamethasone positively influenced some meat quality traits, making the meat more attractive to consumers.
Effects of Dexamethasone on meat quality of Friesian bulls
BARBERA, Salvatore;TARANTOLA, Martina;NEBBIA, Carlo
2011-01-01
Abstract
This study investigate the effects of illegal administration of Dexamethasone on meat quality of Friesian bulls. Twenty finishing Frisian bulls (initial LW=440±53.4 and age=387±36.9 days), were randomly divided into three groups: HD (n=6), LD (n=6) and C (n=8). The HD and LD groups were respectively administered 1.4 and 0.7 mg head/d of oral dexamethasone-21-sodium-phosphate for 60 days and slaughtered after a suspension period of 26 days. The third group (C) served as control. Samples of m. longissimus thoracis and lumborum were taken in order to evaluate: meat color, thawing loss, WB peak and break on cooked meat, drip and cooking losses, meat cooking shrinkage (MCS), MCS cooking and cooling losses, WHC total and halo area and WHCtrend. The treated groups showed a significant lower thawing loss (HD:7.0ab, LD:5.6a, C:7.2b %), WB peak (HD:78.8aA, LD:94.1a, C:114.8bB N) and break (HD:66.4aA, LD:83.9b, C:97.5bB N); the meat was lightish (HD:38.5a, LD:37.1ab, C:35.6b), reddish (HD:24.8AB, LD:25.4A, C:24.0B), yellowish (HD:8.7a, LD:8.7a, C:7.7b), higher chrome (HD:26.7a, LD:26.8a, C:25.2b) and hue (HD:0.33a, LD:0.33a, C:0.31b); MCS was lower in control group (HD:20.9ab, LD:22.8a, C:19.5b %). The Canonical Discriminant Analysis shows a significant separation between control and treated groups due to thawing loss, red-green index (a*), WB break, cooking loss mcs. The illegal use of Dexamethasone positively influenced some meat quality traits, making the meat more attractive to consumers.
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