Prevalence of abortion in kundhi buffalo in district hyderabad, sindh – Pakistan
Fifty dairy farms 5660 animals were examined between 10-12-2009 and 17-01-2011. Samples collected and examined during present investigation included milk, blood and vaginal secretion (swab) and placenta from the aborted dam along with liver, lungs and stomach contents from aborted fetus. In addition, information regarding the general health, vaccination history of the animal and management of the dairy farm was collected through the questionnaire based on the interview of farm owner. The study revealed an overall abortion rate of 3.53% in Kundhi buffalo in District: Hyderabad. The organisms identified as single infection included: Brucella abortus (16.3%), Trichomonas fetus (2.14%) and Listeria monocytogenes (1.82%). In case of mixed infection, Brucella abortus along with Salmonella spp: occurred in highest frequency (7.5%), followed by Brucella abortus along with Staphylococcus aureus (7.34%) and Proteus vulgaris along with Escherichia coli (3.4%). Based on the above observations, it was concluded that: (a) B.abortus appears to be a major single causal agent causing abortion in buffalo. (b) Brucella abortus along with Staphylococcus aureus (7.34%) appears to be major mixed cause of abortion in buffalo. (c) The abortion rate of 3.53% in Kundhi buffalo was lower than previously reported indicating availability of good professional services and better management in the dairy farms. The fetal stomach contents from aborted fetus appeared to be a better sample type for the isolation and identification of different organism responsible for the abortion in Kundhi buffalo.
Keywords: Milk, placenta, fetal stomach contents and bacteria.