Prevalence, Isolation and Identification of Major Bacteria Associated Goat Mastitis in and Around Haramaya Town, Eastern Ethiopia

Abstract

Mohammedkemal Mustefa Ame(MSc), Bayan Ahmed(DVM), Megersa Abdulhamid(DVM), Dinaol Belina(D-VM,MSc,Asso.prof), Mohammed Bedruddin(DVM), Fathi Mohammed(DVM), Zeyni Jamal(DVM), Meditu To-fiq(BVSc), Jemal Ahmed(MSc) and Mohammed Jemal (DVM)

The study was conducted from November 2018 to April 2019 to estimate the prevalence of sub clinical and clinical mastitis, to asses associated risk factors and to isolate the major bacterial pathogens in dairy goat in Haramaya district of Eastern Ethiopia. Among 384 lactating goats examined, 173 (45.05%) were infected with mastitis, 17 were infected with clinical mastitis and 156 were subclinical mastitis. Results of clinical examination and CMT showed clinical mastitis and subclinical mastitis. On an average 4.43% (n=17), 40.62% (n=156) and 54.95% (n=211) goats showed clinical, subclinical and negative for mastitis respectively. The highest prevalence of clinical (5.50%) and subclinical (50%) mastitis was seen at the age between 4 to 5 years and above 5 years respectively. A lowest preva- lence (1.80%) of clinical and subclinical mastitis (32.10%) was seen at 2 to 3 years age group. The highest prevalence of clinical (10.50%) and subclinical mastitis (61.40%) cases were recorded at above 6th parity. The lowest prevalence of clinical (2.30%) and subclinical (36.60%) mastitis was seen at the parity between 1st and 2nd parity. The highest prevalence of clinical (6.70%) and subclinical (46.80%) mastitis was detected in goats with an early lactation period, and the prevalence rate gradually decreased as the length of lactation period was shortened. Bacteriological exam- ination of milk sample revealed 173 clinical and subclinical cases of mastitis were E. coli, Staphylococci and Strep- tococci. The highest prevalence of Staphylococcus spp (n=108) was seen followed by E. coli (n=80) and Streptococci spp. The present study concluded that prevalence of mastitis particularly the subclinical mastitis was major problem of dairy goat in the area and hence warrants serious attention.

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