CERTAIN HEMO·BIOCHEMICAL CHANGES DUE TO EXERCISE AND WATER DEPRIVATION STRESSES OF SHEEP AND GOATS UNDER DROUGHT CONDITIONS | ||||
| Journal of Animal and Poultry Production | ||||
| Article 9, Volume 28, Issue 7, July 2003, Page 5307-5316 PDF (1.48 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/jappmu.2003.252548 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| M. T. A. Badawy,; H. A. Gawish,; M. S. Abdel-Fattah,; A. A. Azamel, | ||||
| Animal and Poultry Physiology Department, Animal and Poultry Production Division, Desert Research Center, Matarya, Cairo, Egypt | ||||
| Abstract | ||||
| Twelve adult females of each of Abou-Delik sheep and Saladi goats raised at Hederba Research Station (in the extreme south of the eastern desert of Egypt ). were divided into three equal groups (each 4 sheep: 4 goats). The first group was standing outdoors just inside wire-fenced pen and watered once every day as control. The second group was enforced to walk 12 km from 09.00 hr. to 15.00 hr. and watered daily. The third group walked the same distance. at the same time, and watered once every 48 hours for consecutive two cycles (each 2 days). After the end of the treatments, animals were left for recovery in their pens for extra two days. This study aimed at studying the adaptive physiological mechanisms that enabled such animals to withstand the walking stress and water deprivation during grazing under hot desert conditions. In this respect. blood samples were collected from all animals to determine some hematological parameters (hematocrit, hemoglobin concentration, red blood cells and white blood c ells counts in addition to hemoglobin indices ( mean corpuscular volume. mean cell hemoglobin and mean cell hemoglobin concentration). Some blood biochemical measures in terms of plasma proteins, glucose, urea, creatinine, lactate dehydrogenase and transaminase enzymes (aspartate and alanine aminotransaminase ) were also determined. Results revealed that hematocrit % , hemoglobin concentration, red blood cells and white blood cells counts were markedly elevated (P<O.01) than their pre-exercised values in both sheep and goat groups suffering either single or combined stress. On the other hand. results of hemoglobin indices revealed a marked reduction in mean corpuscular volume, elevation of mean cell hemoglobin and mean cell hemoglobin concentration coincided with higher elevation in red blood cells count, hematocrit value and hemoglobin concentrations in both sheep and goat groups either under single or combined stress. Muscular activity seemed to accompany with glycogenolysis in the liver cells as indicated by prolonged elevation in glucose concentration and enzymes activity following exercise and rest periods. Following exercise. blood urea and creatinine concentration was markedly elevated either due to single or combined stress in both sheep and goat groups. Plasma enzymes activity as well as lactate dehydrogenase increased (P<0.01) in both sheep and goat groups due to single or combined stress. During the rest period. most of these parameters recovered nearly their pre-exercise values. It could be concluded that walking for long distances between grazing areas and water holes is an great problem facing animal flocks in desert areas. The lower metabolic rate reported for walking animals as well as hemo-biochemical changes seemed to be the target physiological mechanisms particularly when suffering combined stresses under desert conditions. | ||||
| Keywords | ||||
| Sheep; Goats; Walking stress; Water deprivation; Hematological parameters; Biochemical parameters | ||||
|
Statistics Article View: 40 PDF Download: 156 |
||||
