Variability in susceptibility of different Indian goat breeds with respect to natural and experimental infection of Mycobacterium avium subspecies Paratuberculosis Singh P.K., Singh S.V.*, Singh A.V., Sohal J.S. Microbiology Laboratory, Animal Health Division, Central Institute for Research on Goats, Makhdoom, Mathura, Pin - 281 122, India. *E-mail address: shoorvir.singh@gmail.com
Abstract In the present investigation differences in breed susceptibility of five important goat breeds native of two agro-climates were studied with respect to Johne's disease (JD). Breeds located in semi-arid region of south Uttar Pradesh (Barbari and Jamunapari) and arid region of Rajasthan (crossbred, Jakhrana and Marwari) were compared for their susceptibility for Johne's disease. Information on body weight, morbidity and mortality due to JD, fecal shedding of Mycobacterium avium subspecies paratuberculosis (MAP), gross and microscopic lesions in target tissues (Intestine near ileo-caecal junction and mesenteric lymph nodes) was collected and analyzed in 30 naturally infected (Barbari-10, Jammunapari-6, Jakharana-4, Marwari-10) and 26 experimentally infected (Barbari-9, Jammunapari-3, Jakharana-4, Marwari-3, crossbred Rajasthani type - 7) goats. Results showed that breeds of semi-arid zone (Barbari and Jamunapari) were more susceptible to infection with MAP whereas, arid zone breeds (especially crossbred Rajasthani type goats) were comparatively resistant. Top Key words Disease susceptibility, Goat, Johne's disease, Mycobacterium avium, Paratuberculosis. Top |