Paper Information

Journal:   JOURNAL OF VETERINARY RESEARCH   2003 , Volume 58 , Number 2; Page(s) 101 To 103.
 
Paper: 

INVESTIGATION OF PREVALANCE OF THEILERIA SP INFECTION AND INTERRELATIONSHIP WITH CLINICAL SIGNS AT GHAEMSHAHR ABATTOIR

 
 
Author(s):  HAJI KOULAEI M.R.*, CHANGIZI E., LOTF ELAHZADEH S., MARZBAN K.
 
* DEPARTMENT OF CLIVICAL SCIENCES.FACULTY OF VETERNATY MEDICINE, SHAHID CHAMRAN UNIVERSITY, AHVAS, IRAN
 
Abstract: 

Objective: This study was carried out in order prevalence of Theileria infection and interrelatinship with clinical sign in sheep.
Design: Field study.
Animals: Three hundred sheep.
Procedure: During summer season (2000) , 300 sheep were examined clinically and para clinically at Ghaemshahr abattior. Before slaughter, body temperature, heart rate and respiratory rate of sheep were taken and inspection of lymph nodes and color of mucouse membrane (eye and vagina) were also assessed. All parts of body surface were inspected for presence of tick and some of them were collected. Smears of peripheral blood were prepared from car. All of +nears were fixed with methanol and stained with Gimsa.
Statistical analysis: Results from this study were analyzed with Student t test and Chi-square.
Results: Out of 300 sheep the prepared blood smear showed that 39(13%) sheep infected with Theileria. 31(10.3%) sheep infected with tick (30 Hyaloma anatolicum and l Ripycephalus bursa). Clinical examination showed that heart rate, respiratory rate, lymph nodes and color of mucous membrane (eye and vagina) in all of sheep were in normal range and one case suffered from enlargement of right prescapular lymph node. There was no significantly difference between two groups (infected and nonifected sheep). Body temperature was significantly higher in infected group (P<0.05).
Conclusion: Since none of infected sheep in this study showed the clinical sings of theileriosis, it seems that these sheep had been probably infected with Theileria ovis or had been infected with Theileria ovis or had were carriers at the time of study.

 
Keyword(s): SHEEP, THEILERIA, AND GHAEMSHAHR
 
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