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Paper Information

Journal:   PAJOUHESH-VA-SAZANDEGI   WINTER 2007 , Volume 19 , Number 4 (73 IN ANIMAL AND FISHERIES SCIENCES); Page(s) 59 To 64.
 
Paper: 

EFFECTS OF THE ELECTRICAL SHOCK ON BLOOD PARAMETERS IN DAIRY COWS

 
 
Author(s):  RAMIN A.GH.*, ASRI REZAEI S.
 
* CLINICAL SCI., VET. COLLEGE, URMIA UNIVERSITY
 
Abstract: 

The effects of electrical shock on blood parameters in 24 native and hybrid dairy cows were investigated in 2004 in Urmia, Iran. Cows were randomly classified in 4 groups. A 5 ml blood sample was taken from jugular vein of cows in each group slightly in the morning and then was subjected to two times (1 second) by transportable electrical shock (3 voltage). Blood samples were then taken 1.5 hours interval up to 7.5 hours. Blood cortisol, glucose, calcium (Ca), inorganic phosphorus, magnesium, sodium, potassium, total protein, fibrinogen, leucocytes (WBC) and differential count were evaluated. Blood glucose, cortisol, WBC and neutrophils increased up to 25%, 308%, 68% and 286%, respectively. Serum Ca decreased up to 11%. The mean differences for those parameters between before and after shock were all significant (p<0.01) lymphocytes (0.1<p>0.05). Other parameters were not significant. The earliest changes observed for cortisol were 1.5 hours, Ca and neutrophils were 3 hours and WBC and glucose were 4.5 hours after electrical shock. Pearson correlation results showed no significant correlations between cortisol and significant blood parameters. It is concluded that the administration of the short time transportable electrical shock as a stressor increases blood cortisol, that responsible to changes in glucose, leucocytes, neutrophils and Ca. Changes in these parameters are reasonably fast and ranged from 1.5 to 4.5 hours after shock. Therefore, according to the significant changes in blood parameters mentioned above it could be resulted that administration of the short time transportable electrical shock as a stressor must be applied only in emergency conditions.

 
Keyword(s): ELECTRICAL SHOCK, GLUCOSE, CORTISOL, LEUCOCYTES, CALCIUM, COW
 
References: 
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