Mahder Tadesse Admasu* and Dinsefa Jemal Hassen
A longitudinal study on calf management and health problems was conducted in 97 small holder Dairy farms found in Dugda Bora, Arsi Negelle, Shashemene and Kofele districts of Oromia region, Ethiopia, from November 2010 to April 2011. A total of 97 calves (84 local and 13 cross breed) were selected randomly and regularly monitored up to six months of age. Information on potential risk factors was collected by personal observation during the regular visit to farms and from questionnaire survey conducted during the study period. Chi-Square statistics and comparison of proportions were used to analyze the data. Out of 97 small holder dairy farms, 88 (90.7%) follow an extensive type of production system. Out of 97 calves surveyed, 59 (60.8%) were female and 38 (39.2%) were male. Calves were housed separately away from adult animals on 75 (77.3%) of the farms. 86 (88.7%) of the farms practiced a residual suckling feeding system. Based on the questionnaire survey, 26 (26.8%) external parasite infection followed by diarrhea 16 (16.5%). Routine clinical examination of calves for any health problem were also carried out indicating calf diarrhea in 18 (18.6%), tick infestation in 16 (16.5%) and mange mite infection 9 (9.3%). Among the risk factors considered for analysis, hygiene is found to be significantly associated with health problems of calves replied by the farmers (χ2=25.57.6; P<0.12) and result of routine examination (χ2= 27.642; P<0.016). Out of the 97 calves surveyed, 33 (34.0%), 55 (56.7%) and 9 (9.3%) have poor, medium and good body condition scores respectively. Out of the 21 risk factor considered, about 9 were found to be significantly associated with body condition score of calves. The calf health and management problems found in this study can be achieved through creation of awareness among farm owner and implementation of improved calf management practices.
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