Warriss P D, Kestin S C, Brown S N, Knowles T G, Wilkins L J, Edwards J E, Austin S D, Nicol C J
School of Veterinary Science, University of Bristol, Langford.
Br Vet J. 1993 Jul-Aug;149(4):391-8. doi: 10.1016/S0007-1935(05)80078-8.
Broilers were either not transported or were transported for 2, 4 or 6 hours after having been subjected to food withdrawal times of less than one hour or of ten hours. The birds were then slaughtered using normal commercial practices. The longer period of food deprivation reduced liver weight and glycogen content, and circulating glucose concentrations. It also elevated the ultimate pH value (pHu) in the biceps muscle and by implication, therefore, reduced its glycogen content. With longer journey times, liver weight and glycogen content decreased. Transport had an inconsistent effect on glycogen concentration in the pectoral muscle but progressively reduced its pHu. In contrast, pHu in the biceps progressively increased, by implication because transport depleted muscle glycogen levels. Birds transported further had higher concentrations of total protein in their plasma which, though this was not significant, also had a higher osmolality. This suggests that transported birds became dehydrated. Additionally, the depletion of body glycogen stores might be associated with the perception of fatigue.
肉鸡要么不运输，要么在禁食不到1小时或10小时后运输2、4或6小时。然后采用正常商业做法宰杀这些鸡。较长时间的食物剥夺会降低肝脏重量、糖原含量和循环葡萄糖浓度。这也会提高二头肌的最终pH值（pHu），因此，意味着降低其糖原含量。随着运输时间延长，肝脏重量和糖原含量下降。运输对胸肌糖原浓度的影响不一致，但会逐渐降低其pHu。相比之下，二头肌的pHu逐渐升高，这意味着运输耗尽了肌肉糖原水平。运输距离更远的鸡血浆中总蛋白浓度更高，虽然这并不显著，但渗透压也更高。这表明运输的鸡出现了脱水。此外，身体糖原储备的消耗可能与疲劳感有关。
