Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China.
Poult Sci. 2010 Mar;89(3):413-9. doi: 10.3382/ps.2009-00550.
To investigate the effects of transport stress on blood metabolism, glycolytic potential, and meat quality in male Chinese Lingnan meat-type yellow-feathered chickens, three hundred sixty 72-d-old birds were randomly assigned to 1 of 5 treatments: unstressed control, 45-min (short-term) transport with 45-min (short-term) recovery, 45-min transport with 3-h (long-term) recovery, 3-h (long-term) transport with 45-min recovery, and 3-h transport with 3-h recovery. Each treatment consisted of 6 replicates with 12 birds each. All birds (except control group) were transported according to a designed protocol. Long-term transport decreased the plasma glucose level (P < 0.001), glycogen concentration in both breast (P = 0.023) and thigh (P = 0.012) muscles, and affected the size of IIb fibers in the tibialis anterior by decreasing the area (P = 0.031) and increasing the density (P = 0.046), drip loss (P = 0.045), and the a* (redness; P = 0.040) value in breast muscle. Long-term recovery after transport also decreased the plasma glucose level (P = 0.018) and showed a trend toward decreased breast glycogen concentration (P = 0.064). These results suggested that transport did not cause any noticeable changes in overall meat quality characteristics, although breast meat drip loss and meat color were affected. A long-term recovery from a period of feed and water deprivation also caused hypoglycemia and did not improve meat quality in Lingnan meat-type yellow-feathered chickens.
为了研究运输应激对雄性岭南黄羽肉鸡血液代谢、糖酵解潜力和肉质的影响，将 360 只 72 日龄的鸡随机分为 5 个处理组：无应激对照组、45 分钟（短期）运输加 45 分钟（短期）恢复组、45 分钟运输加 3 小时（长期）恢复组、3 小时（长期）运输加 45 分钟恢复组和 3 小时运输加 3 小时恢复组。每个处理组包括 6 个重复，每个重复 12 只鸡。所有鸟类（除对照组外）均按照设计方案进行运输。长期运输降低了血浆葡萄糖水平（P<0.001）、胸肌（P=0.023）和腿肌（P=0.012）中的糖原浓度，并通过降低 IIb 纤维的面积（P=0.031）和增加密度（P=0.046）、滴水损失（P=0.045）和胸肌的 a*值（红色度；P=0.040）来影响胫骨前肌 IIb 纤维的大小。运输后的长期恢复也降低了血浆葡萄糖水平（P=0.018），并且胸肌糖原浓度有降低的趋势（P=0.064）。这些结果表明，尽管胸肉滴水损失和肉色受到影响，但运输并没有对整体肉质特性造成明显变化。从禁食和禁水期恢复一段时间也会导致低血糖，并且不能改善岭南黄羽肉鸡的肉质。
