March 2013
Prevalence of subclinical mastitis in lactating cows in selected commercial dairy farms of Holeta district
A cross-sectional study was carried out to determine the prevalence of subclinical mastitis in lactating dairy cows from August 10, 2011 to May 25, 2012 in three purposively selected commercial dairy farms in Holeta district, Ethiopia. The study was carried out through field screening surveys by California mastitis test for each quarter milk sample, followed by bacteriological examination to identify the causative...
March 2013
Study on prevalence and identification of ticks in Humbo district, Southern Nations, Nationalities, and People's Region (SNNPR), Ethiopia
The distribution and abundance of cattle tick species in Humbo woreda, Wolaita zone, was studied over a period of 6 months from November, 2011 to April, 2012. Adult ticks were collected from seven main body regions of 384 cattle which were under extensive management system. Out of the total of 384 cattle examined, 238 (61%) were found to be infested by one or more tick species. About 2,439 adult ticks were collected...
March 2013
Camel brucellosis and management practices in Jijiga and Babile districts, Eastern Ethiopia
A cross-sectional study was carried out on sera of 822 randomly selected camels in order to estimate seroprevalence and risk factors of brucellosis and assess camel management practices. A questionnaire survey was administered to one-hundred willing respondents out of the total 185 camel owners whose camels were included in the sample unit. The sera were first screened by Rose Bengal plate test (RBPT) and then all...
March 2013
Prevalence, cyst characterization and economic importance of bovine hydatidosis in Mekelle municipality abattoir, Northern Ethiopia
A cross-sectional survey of bovine hydatidosis was carried out on 840 local zebu cattle slaughtered at Mekelle municipal abattoir to determine the prevalence, fertility of hydatid cysts and to assess economic loss. The total prevalence rate was found to be 28.09% at the study period of 8 months from October to May. Observation during the survey period also revealed that the infection rate among different age groups of...
March 2013
Effects of three Chinese herbal crude polysaccharides on immunoglobulin A secreting cells and serum antibody titers in vaccinated chickens
This study was conducted to evaluate the effects of three Chinese herbal crude polysaccharides on immunoglobulin A secreting cells and serum antibody titers in vaccinated chickens. A total of 450 14-day-old chickens were randomly assigned to nine equal groups and all chickens were vaccinated. Concurrent with the first vaccination, chickens in groups 1 to 8 were intramuscularly injected with four crude polysaccharides...
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