Cow Mastitis in Urban and Pri-urban Small Holder Dairy Farms in Ethiopia

摘要

The study was conducted to determine the prevalence of clinical and sub clinical mastitis and to identify the risk factor associated with mastitis in Tigrayn Ethiopia. Clinical examination, CMT and Questioner survey were used for data collection. The overall prevalence of clinical mastitis were 64 (19.5%) out of 382 cows randomly selected from 82 small holder dairy farms. From 264 tested lactating cows for CMT 101 (30.8%) was respond positive for sub clinical mastitis test. From the clinical mastitis positive cows 42 (65.61%) were from urban and 22 (34.38%) were from pri urban. Age and parity as a risk factor for mastitis revealed that, cows with an age range from 5-7 years old were 10 (15.6%) for clinical mastitis range from 8-10 were 16 (23.43%) and cows with an age of more than 10 years old 38 (59.43%) were positive for mastitis. The correlation between age and cow with positive clinical mastitis were 0.946 so this indicates that there is a strong correlation these, as age increases the incidence of mastitis will increase. In relation to parity with mastitis correlation is 0.949 which has highly positive correlation these, as parity increase the occurrence of mastitis is increase. So considering the significant economic losses that could be incurred by both clinical and subclinical mastitis, attention should be paid for further investigation of the cause of the disease.