Abstract:
The effects of two levels of bleeding (15 and 30%) on
physiological responses were evaluated in adult goats. The magnitude of
haemorrhage was expressed as percentage of initial total blood volume
after plasma volume determination by dye dilution. The groups subjected
to haemorrhage had higher rectal temperature, respiration rate and heart
rate compared to the control; the responses were more marked with the
higher level of bleeding. The treated groups had lower Packed Cell Volume
(PCV), haemoglobin concentration (Hb) and Total Leucocyte Count (TLC)
compared to the control; they were significantly lower with high level
of bleeding compared to the control. The ratio of lymphocytes decreased,
whereas the neutrophil ratio increased in treated groups compared to the
control. The treated groups had lower serum total protein and albumin
concentrations compared to the control. The plasma glucose level was higher
in treated groups compared to the control and it increased with the increase
of bleeding level. The treated groups had lower serum Na, Ca and Mg concentrations
compared to the control. The levels of these minerals decreased with increase
of bleeding level. The 15% bleeding group returned to normal values within
2 weeks, whereas the 30% bleeding group recovered within 5 weeks.
Selma E. Abdalla and Abdalla M. Abdelatif, 2008. Effects of Haemorrhage on Thermoregulation, Heart Rate and Blood Constituents in Goats (Capra hircus). Pakistan Journal of Biological Sciences, 11: 1194-1203.
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