Epidemiology, Diagnosis And Chemoprophylaxis Of Trypanosoma Evansi Infection In Dairy Cattle
Trypanosomiasis caused by Trypanosoma evansi is considered to be one of the diseases of economic importance affecting dairy cattle in Malaysia. An investigation into the epidemiology, diagnosis and chemoprophylaxis of T. evansi infection in these animals was carried out. F our studies were conduc...
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| Format: | Thesis |
| Language: | English English |
| Published: |
1997
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/12323/1/FPV_1997_2_A.pdf |
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| Summary: | Trypanosomiasis caused by Trypanosoma evansi is considered to be one of
the diseases of economic importance affecting dairy cattle in Malaysia. An
investigation into the epidemiology, diagnosis and chemoprophylaxis of T. evansi
infection in these animals was carried out. F our studies were conducted in this
investigation.In the first study, random blood samples were collected from animals of
different age/physiological status for parasitological, serological, haematological and
biochemical tests between August 1995 and July 1996 The mean prevalence was
highest in the lactating animals ( 134 %) followed by those in the dry herd (88%), late
pregnant animals (81%), early pregnant animals (47 %), calves (03 %) and yearlings
(02%) The mean prevalence was significantly different (p<0.05) between cows and
the other groups (calves and yearlings) Among the cows there was significant
difference in the mean prevalence between the early pregnant and lactating animals
(p<0.05) The association between the prevalence in lactating cows and rain days
was significant (p< 0 05) Infected dry cows had a significant decrease in the PCV,
Hb and albumin levels (p< 0 05) The antigen-detection ELISA was a useful
diagnostic tool for detection of T. evansi infections as it was capable of detecting
9 1 % of trypanosome-positive ammals |
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