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Asai, K. (1976). Animals waiting for salvation.
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Aspinall, J. (1979). New enclosures at Howletts and Port Lympne (Vol. 2).
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Aspinall, J. (1978). Some aspects of breeding tigers and other big cats. Friends of Howletts and Port Lympne, 1(Spring), 26–32.
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Chubykina, H. L., Shilo, R.A. (1981). A study of diurnal activity rhythms in snow leopards and lynx (Panthera uncia and Felix lynx) at Novosibirsk Zoo. International Zoo Yearbook, 21, 193–196.
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Clapp, M. Rare cat has back problems. San Antonio News.
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Clevenger, S. (1980). Snow leopards: Captivity perpetuates the species (Vol. XVI).
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Clevenger, S., S. (1979). Breeding snow leopards in the north 40.
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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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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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Hansen, J. (1980). The snow leopard study, part one.
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Hemmer, H. Studies of Irbis, Uncia uncia: Munich State-collection Zoo.
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Houston Zoological Society. (1979). Houston's summer snow.
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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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Konrath, R. (1975). Snow leopard born at Milwaukee. Animal Keepers' Forum, 11(11).
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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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Lindee, S. Snow leopard's back repaired.
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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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Portland Zoological Society. (1976). Snow leopards, animals of the month (Vol. 5).
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Schneider, V. K. M. (1936). Einige bilder zur Aufzucht eines schneeleoparden. Dresden Zoological Garden, , 37–39.
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