THEILERIOSIS IN CATTLE PDF DOWNLOAD!
A large number of Theileria spp are found in domestic and wild animals in tick-infested areas of the Old World. The most important species affecting cattle are T. Information about anaemia associated with the blood parasite Theileria in cattle. Taurine breeds of cattle are generally more susceptible to ECF than zebu (Bos indicus) or sanga susceptible to theileriosis than cattle from endemic areas.
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Theileriases - Circulatory System - Veterinary Manual
Trop Anim Health Prod. Treatment of theileriosis in crossbred cattle in the Punjab. Buffalo T parva were previously considered a separate subspecies T parva lawrenceibut DNA typing indicate that the cattle and buffalo parasites are a single species.
T parva is usually highly pathogenic, causing high levels of mortality, although theileriosis in cattle less pathogenic isolates have been identified.
Theileriosis In Cattle
Pathogenesis, Clinical Findings, and Diagnosis: T parva sporozoites are injected into cattle by infected vector ticks. An occult phase of 5—10 days follows before infected lymphocytes can be detected in Giemsa-stained theileriosis in cattle of cells aspirated from the local draining lymph node.
Subsequently, the number of parasitized cells increases rapidly throughout the lymphoid system, and from about day 14 onward, cells undergoing merogony are observed. This is associated with widespread lymphocytolysis, marked lymphoid depletion, and leukopenia.
Piroplasms in Theileriosis in cattle infected by the resultant merozoites assume various forms, but typically they are small and rod-shaped or oval.
Clinical signs vary according to the level of challenge, and they range from inapparent or mild to severe and fatal.
- Treatment of theileriosis in crossbred cattle in the Punjab.
- Tropical theileriosis - Wikipedia
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Lymph node swelling becomes pronounced and generalized. Lymphoblasts in Giemsa-stained smears of needle aspirates from lymph nodes contain multinuclear schizonts. Anorexia theileriosis in cattle, and the animal rapidly loses condition; lacrimation and nasal discharge may occur.
Terminally, dyspnea is common.
Just before death, a sharp decrease in body temperature is usual, and pulmonary exudate pours from the nostrils. Death usually occurs 18—24 days after infection. The most striking postmortem lesions are lymph node enlargement and massive pulmonary edema and hyperemia.
Hemorrhages are common on the serosal and mucosal surfaces of many organs, sometimes together with obvious areas of necrosis in the lymph theileriosis in cattle and thymus.
Bovine Anaemia - Theileria - The Cattle Site
Anemia is not a major diagnostic sign as it is in babesiosis because there is minimal division of the parasites in RBCs, and thus no massive destruction of them. Animals that recover are theileriosis in cattle to subsequent challenge with the same strains but may be susceptible to some heterologous strains.
Theileriosis in cattle temperature is regularly higher than in any other cattle disease. Later on day 5 to day 10 from the clinical onsettemperature will lower to a normal range Such animals rarely recover, even with intensive treatment.
By about six months of age, immunity develops and it is rare to see disease in calves older than six months and adults who have theileriosis in cattle resident in the area. Treatment Treatment options for benign theileriosis are limited to supportive care and symptomatic treatment.