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Clapp, M. Rare cat has back problems. San Antonio News.
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Freeman, H., Braden, K. (1977). Zoo location as a factopr in the reproductive behavior of captive snow leopards, Uncia uncia. Zoological Garten J.F., 47(3/4), 280–288.
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Ulmer, F. A. (1966). Voices of the Felidae. Stock, , 259–262.
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Schneider, V. K. M. (1936). Einige bilder zur Aufzucht eines schneeleoparden. Dresden Zoological Garden, , 37–39.
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Krumbiegel, V. I. (1936). Die schneeleoparden (Felis uncia Schreb.) des Dresdner Zoologischen Gartens. Dresdner Zoologischen Gartens, , 34–37.
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Roth, T. L., Swanson, W. F., & Wildt, D. E. (1995). Snow leopard (Panthera unica) sperm longevity in vitro is not influenced by protein or energy source supplements but is affected by buffer source. Theriogenology, 43(1), 309.
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Marma, B. B., Yunchis, V.V. (1969). Biology of the snow leopard (Panthera uncia uncia). Zoologicheskii Zhurnal, 47(11), 1689–1694.
Abstract: The methods to obtain progeny of the snow-leopard (Panthera uncia uncia) in captivity were being elaborated in the zoological garden of Kaunas, Lithuanian SSR. The blood characteristics for snow-leopards is given and compared to that for African lions and Sumatran tigers. A series of internal, external and clinical indices is established. The rut lasts for 5-7 day, the duration of pregnancy equals 98 days. The duration of lactation varies from 3 to 4 months. Sexual maturity is attained on the 3rd-4th year. From 1960 to 1967 in zoological ghardens of the world abuot 29 snow-leopards were born. 14 of them -- in the Kauna zoological garden.
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Mayo, J. G. (1967). Report on the tranquillisation of a male Snow leopard Panthera uncia for semen extraction. International Zoo Yearbook, VII(7), 148–150.
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National Zoological Park. (1974). Significant birth and hatchings at the National Zoological Park: Studbook for snow leopards (Uncia uncia).
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Encke, B. (1967). Die sucht von schneeleoparden (Uncia uncia) im Krefelder Tierpark (Vol. 9).
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Encke, B. (1966). The breeding of snow leopards (Uncia uncia) in the Krefeld Zoo. Freunde des Kolner Zoo, 9(Winter 1966/1967), 145–146.
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Freeman, H. (1980). Breeding and behavior of the snow leopard.
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Jones, M. L. (1977). The snow leopard in captivity (R. L. Eaton, Ed.) (Vol. III).
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Kitchener, S. L., Merritt, D.A., Rosenthal, M.A. (1974). Observations on the management, physiology, and hand rearing of snow leopards (Panthera uncia) at Lincoln Park Zoo, Chicago, from 1960-1974.
Abstract: Data on the 28 snow leopards born at the zoo in a 13 year period.
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Konrath, R. (1975). Snow leopard born at Milwaukee. Animal Keepers' Forum, 11(11).
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Blomqvist, L. (1998). Analysis of the global captive Snow leopard, Uncia uncia, population in 1996. International Pedigree Book of Snow Leopards, Uncia uncia, 7, 6–20.
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Hongguang, H. (1994). Case report of a subadult snow leopard with serious acute shock pneumonia. In J.L.Fox, & D.Jizeng (Eds.), (pp. 217–219). Usa: Islt.
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Freeman, H. (1983). Behavior in adult pairs of captive snow leopards (Panthera uncia). Zoo Biology, 2(1), 1–22.
Abstract: Eight adult pairs of snow leopards (Panthera uncia) were observed for one to three years in the months December through March to determine the species' social and reproductive characteristics in captivity. To statistically examine the occurrence of behaviors as a function of estrus, the observation weeks were divided into three time blocks: before estrus, estrus, and after estrus. Using percentage of scan samples as an estimate of time spent in various behaviors, 16 behaviors and combined behavior categories were examined for (1) behaviors that differentiated successfully from unsuccessfully breeding pairs, (2) sex differences in behavior, (3) significant correlations between pair members, and (4) behaviors that showed time block effects. The rationale for identifying a behavioral profile of successful breeders in snow leopards was to aid zoos in their captive management programs by increasing their knowledge of the social behavior of this species. By finding correlates to breeding success, informed decisions on whether to change partners after a certain period of time, how to group the cats, and the optimum strategy for a survival plan can be made. (PsycINFO Database Record (c) 2000 APA, all rights reserved
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Freeman, H. (1980). The snow leopard, today and yesterday. In L. Blomqvist (Ed.), International Pedigree Book of Snow Leopards, Vol. 2 (Vol. 2, pp. 37–43). Helsinki: Helsinki Zoo.
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Freeman, H., & Hutchins, M. (1978). Captive Management of Snow Leopard Cubs. Der Zoologischer Garten, 48, 49–62.
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Freeman, H. (1978). Social Behavior in the Snow Leopards and its implications for captive management. Int.Ped.Book of Snow Leopards, 1, 71–77.
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Doherty, J., & Wharton, D. (1988). Breeding Management of the Snow Leopard at the New York Zoological Park. In H.Freeman (Ed.), (pp. 173–179). India: International Snow Leopard Trust and Wildlife Institute of India.
Abstract: Since 1996, the Bronx Zoo has produced 48 snow leopard cubs. Some of the cubs born in the last several years are the great-great grandchildren of the Bronx male Sherpa born in 1966. These five generations have all been bred and reared in the Zoological Park's Lion House which opened in 1903......Instead we will focus primarily on mangement and manipulation for cub production.
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Doherty, J. (1987). The exibition and management of snow leopards in the Himalayan highlands exhibit in the Bronx Zoo. (pp. 94–101).
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Blomqvist, L. (2003). The global snow leopard population in captivity 2001 (Vol. 8).
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Blomqvist, L. (2003). The Global Studbook Report 2002 for Snow Leopards: Decline of a Pedigree Species. Helsinki.
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