苏丹干旱缺水对多尔卡瞪羚（Gazella dorcas）的一些影响。

Some effects of water deprivation on dorcas gazelle (Gazella dorcas) in the Sudan.

Mohamed S M, Ali B H, Hassan T

Institute of Environmental Studies, University of Khartoum, Sudan.

Comp Biochem Physiol A Comp Physiol. 1988;90(2):225-8. doi: 10.1016/0300-9629(88)91107-3.

Abstract

The effects of dehydration for 10 days and subsequent rehydration for 2 days on some physiological and biochemical parameters were studied in the Dorcas gazelle. 2. At the end of the 10 days of dehydration, feed intake and body weight were decreased by 42 and 29% of the control values, respectively. Rehydration restored most of the loss in feed intake and body weight. 3. Dehydration decreased the water content in the faeces of the gazelles by 41%. Rehydration restored 36% of the lost faecal water. Urine volume in dehydrated animals decreased by 66%, an effect which was readily reversed by rehydration. 4. Blood haemoglobin of dehydrated gazelles decreased by 22% but this effect was not reversed by rehydration for 2 days. 5. Dehydration for 10 days decreased the concentration of serum glucose by 34% and increased that of urea and albumin by 34 and 18%, respectively. Dehydration for 2 days reversed these effects completely. 6. The serum concentrations of sodium, potassium and chloride were increased by dehydration by 23, 44 and 18% respectively. After 2 days of rehydration the values returned to normal. 7. No change in the heart rate, pulse or temperature was found during the dehydration period. 8. The gazelles survived the 10 days of dehydration, although they tended to be drowsy, weak and emaciated during the last 2 days of dehydration. The animals appeared normal after rehydration.

摘要

研究了多卡瞪羚10天脱水及随后2天补液对一些生理和生化参数的影响。2. 在脱水10天结束时，采食量和体重分别降至对照值的42%和29%。补液使采食量和体重的大部分损失得以恢复。3. 脱水使瞪羚粪便中的水分含量降低了41%。补液恢复了36%损失的粪便水分。脱水动物的尿量减少了66%，补液后这种影响很容易逆转。4. 脱水瞪羚的血液血红蛋白降低了22%，但补液2天并未逆转这种影响。5. 10天脱水使血清葡萄糖浓度降低了34%，尿素和白蛋白浓度分别升高了34%和18%。2天脱水则完全逆转了这些影响。6. 脱水使血清钠、钾和氯的浓度分别升高了23%、44%和18%。补液2天后这些值恢复正常。7. 在脱水期间未发现心率、脉搏或体温有变化。8. 瞪羚在10天脱水期间存活下来，尽管在脱水的最后2天它们往往昏昏欲睡、虚弱且消瘦。补液后动物看起来正常。