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Study investigates morbidity and mortality causes in selected species, highlighting risk factors and trends at the wildlife park. Population structure, feeding, care, and major causes are discussed along with recommendations for conservation.
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FACTORS ASSOCIATED WITH MORBIDITY AND MORTALITY IN SELECTED UNGULATE SPECIES IN AL AIN WILDLIFE PARK AND RESORT, UNITED ARAB EMIRATES. By: ChegeS.M., Kitala, P. & Muchemi G.
Introduction • AWPR (Formerly Al Ain Zoo) founded in 1968 by the late Sheikh Zayed Bin Sultan Al Nahyan • Importance of zoos – education, conservation, exhibition(Goossenset al. 2005) • Ex-situ conservation challenges- resistance to diseases, naivety to predators, Inbreeding (few founders)
Objectives • Overall objective • To investigate the causes of morbidity and mortality in some selected ungulate species in the zoo • Specific objectives • Estimate crude and cause-specific morbidity and mortality rates • Determine the risk factors associated with morbidity and mortality
Materials and methods • Study area - Al Ain Wildlife Park and Resort (Latitude 24°10'45.37"N, Longitude 55°44'19.99"E), Abu Dhabi, in the United Arab Emirates • Climate – Long summer (temperatures > 50oc) and short winter (≤ 6oc). Average annual rainfall >100mm • Study design – Historical data(6yrs) and follow up study (6mo) • Data analysis – Excel, Genstat, Univariate and multivariate analysis (Logistic regression-backward elimination)
Results • Sex and age structure – (1Y:6A), (1M:1F), Arabian oryx neonates (2M:1F) • Feed – Alfalfa, hay, & pellets • 1keeper per 100 animals • Vet care – team, clinic, vaccination program • 2005-2010 morbidity cases = 1021. Arabian Oryx(28.5%) and Speke’s gazelle(27%)
Major causes of Morbidity & Mortality Mortality causes • Septicaemia(38%) • Trauma (25%) • Reproductive disorders (12%) • Pneunomia (8%) • Diarrhoea (6%) • Unknown (6%) • Nutritional deficiencies (3%) Morbidity causes • Trauma (40%) • Septicaemia(18%) • Diarrhoea(16%) • Reproductive disorders(9%) • Pneumonia(6%) • Nutritional deficiency(5%) • Unknown (5%)
Discussion • Morbidity and mortality increases with increased herd size (Lance et al. 1992; Silva del Rio et al. 2007) • Biased sex ratio of 2:1of the Arabian oryx newborns. Price (1989) reported a similar finding. On the contrary, Vie (1996),observed a sex ratio of 1:1 • Neonates were 7x and 23x likely to get sick or die respectively…other similar reports ;Heinrichsand Radostits, (2001), Morrow et al. (1999),. • Lower birth weights recorded – may be related to inbreeding
Conclusion & Recommendation • Conclusion • True rates of morbidity(19.2%) and mortality (11.3%) per animal-month respectively – high • Trauma as leading cause of morbidity. Young die more than old. Low birth weights • Recommendations • Trauma – manage overcrowding , single male & several females • Initiate studies on genetic viability and maternal relatedness of the population