University of Khartoum

Physiological responses of goats (Capra hircus) to haemorrhage as influenced by age.

Physiological responses of goats (Capra hircus) to haemorrhage as influenced by age.

Show full item record

Title: Physiological responses of goats (Capra hircus) to haemorrhage as influenced by age.
Author: Abdelatif, Abdalla Mohamed; Abdalla, S. E.
Abstract: The aim of this study was to clarify the acute and long-term thermoregulatory and haematological responses to moderate haemorrhage (20% of initial blood volume) and to evaluate the influence of age in desert goats. The magnitude of haemorrhage was expressed as a percentage of initial total blood volume after plasma volume determination by dye dilution. Both age groups (3 months, 3 years) had higher rectal temperature (Tr), respiration rate (RR) and heart rate (HR) compared to the control in response to haemorrhage; the increase in Tr and RR was more pronounced in young animals. The total leukocyte count (TLC), packed cell volume (PCV) and haemoglobin concentration (Hb) were lower in haemorrhaged young and adult groups and the post-haemorrhage decline was more pronounced in adult goats. The decrease in lymphocyte and eosinophil ratios and increase in neutrophil and monocyte ratios in response to haemorrhage were more pronounced in adult goats. Haemorrhage resulted in lower serum total protein and albumin levels in young and adult goats. The haemorrhage induced rise in serum urea level was more pronounced in adult goats. The post-haemorrhage increase in plasma glucose level was more marked in young animals compared to the adults. The serum Na level decreased in both haemorrhaged age groups. The variables measured in goats exposed to haemorrhage returned to normal levels earlier in young animals. The results support the assumption that young animals have abilitiesto compensate the blood volume loss better than adults.
URI: http://khartoumspace.uofk.edu/123456789/22174


Files in this item

Files Size Format View

This item appears in the following Collection(s)

Show full item record

Share

Search DSpace


Browse

My Account