Knowles T G, Brown S N, Warriss P D, Phillips A J, Dolan S K, Hunt P, Ford J E, Edwards J E, Watkins P E
School of Veterinary Science, University of Bristol, Langford.
Vet Rec. 1995 Apr 29;136(17):431-8. doi: 10.1136/vr.136.17.431.
Five groups of 20 slaughter sheep of approximately 37.9 kg liveweight were transported by road for either three, nine, 15, 18 or 24 hours and three groups were not transported, one of them being deprived of food and water for 24 hours. Before and after transport the liveweight and various blood variables were measured and heart rate and behavioural observations were recorded from subsets of the animals. With increased journey time there was a decrease in liveweight and an increase in the plasma levels of free fatty acids, beta-hydroxybutyrate and urea; however, the changes over 24 hours were similar to those in the group deprived of food and water. In the transported sheep, the heart rate and levels of plasma cortisol and glucose were increased by the stresses of loading and the initial stages of the journey, but after nine hours the sheep appeared, to some extent, to have adapted. They were able to lie down and did not appear to be physically stressed. Measurements of plasma osmolality, total plasma protein and albumin did not indicate that the sheep had become severely dehydrated after 24 hours of transport but upon their return, feeding and drinking activity was greater than that observed before the journey.
将五组每组20只、平均活重约37.9千克的待屠宰绵羊通过公路运输3、9、15、18或24小时，另外三组不运输，其中一组禁食禁水24小时。在运输前后测量绵羊的体重和各种血液指标，并记录部分绵羊的心率和行为表现。随着运输时间的增加，绵羊体重下降，血浆中游离脂肪酸、β-羟基丁酸和尿素水平升高；然而，24小时内的变化与禁食禁水组相似。在运输的绵羊中，装载应激和运输初期会使心率以及血浆皮质醇和葡萄糖水平升高，但9小时后绵羊在一定程度上似乎已适应。它们能够躺下，看起来没有身体应激。血浆渗透压、总血浆蛋白和白蛋白的测量结果表明，运输24小时后绵羊并未出现严重脱水，但返回后，其进食和饮水活动比运输前更频繁。
