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Physiological and biochemical consequences of electroimobilisation in conscious sheep
Author(s) -
KUCHEL TR,
MATHER LE,
RUNCIMAN WB,
CARAPETIS RJ
Publication year - 1990
Publication title -
australian veterinary journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.382
H-Index - 59
eISSN - 1751-0813
pISSN - 0005-0423
DOI - 10.1111/j.1751-0813.1990.tb07690.x
Subject(s) - cardiac output , blood flow , medicine , homeostasis , blood pressure , renal blood flow , metabolism , venous return curve , acid–base homeostasis , venous blood , arterial blood , heart rate , endocrinology , cardiology , hemodynamics
SUMMARY An electroimmobilisation device has been developed to facilitate the automated shearing of sheep, but there is little information on its effects on the body. We have studied its effects on the cardiovascular system and on intermediary metabolism in sheep. Electroimmobilisation caused statistically significant increases in mean arterial pressure, heart rate, cardiac output, renal and hepatic and hindquarter glucose and lactate flux, organ and whole body oxygen flux, hindquarter blood flow and core temperature and decreases in arterial and posterior vena cava blood pH, renal and hepatic blood flow and PaCO 2 . Notably, no change occurred in PaO 2 . The metabolic changes demonstrated the capacity of sheep to respond to the increased muscular and cardiovascular work induced by electroimmobilisation. Pulmonary function was not compromised during electroimmobilisation as judged from blood gas changes, and the acid/base changes were rapidly reversed after electroimmobilisation. The recovery to control conditions for all perturbations generally took no longer than 30 min, consistent with a rapid and physiologically adequate reversal by the animal's homeostatic mechanisms.