• A retrospective and prospective study of megaesophagus in the Parma wallaby (Macropus parma) at the San Diego Zoo, California, USA

      Burgdorf-Moisuk, Anne; Pye, Geoffrey W.; Smith, Joseph A.; Papendick, Rebecca; Ivy, Jamie A.; Hamlin-Andrus, Chris (2012)
      At the San Diego Zoo (California, USA), 22 cases of megaesophagus were diagnosed in the parma wallaby (Macropus parma); a prevalence of 21.1%. Parma wallabies often have no clinical signs until severe and chronic dilation of the esophagus is present....
    • Abomasal impaction in captive bongo (Tragelaphus eurycerus)

      Gyimesi, Zoltan S.; Burns, Roy B.; Campbell, Mark; Knightly, Felicia; Kramer, Lynn W.; Wack, Raymund F.; Zuba, Jeffery R.; Rings, D. Michael (2011)
      Fatal abomasal impaction, often combined with omasal impaction, was diagnosed in 11 bongo (Tragelaphus eurycerus) from five different zoologic collections in the United States between 1981 and 2009. Nine of 11 cases occurred in young females (10 mo–7 yr old) and typical clinical signs prior to diagnosis or death included partial or complete anorexia, dehydration, and scant fecal production....
    • Semi-quantitative tests of cyanide in foods and excreta of three Hapalemur species in Madagascar

      Yamashita, N.; Tan, Chia L.; Vinyard, C.J.; Williams, C.; (2010)
      Three sympatric Hapalemur species (H. g. griseus, H. aureus, and H. (Prolemur) simus) in Ranomafana National Park, Madagascar are known to eat bamboo food parts that contain cyanide…. In this study, we tested for the presence/absence of cyanide in bamboo lemur foods and excreta to (1) document patterns of cyanide consumption among species with respect to diet, (2) identify routes of elimination of cyanide from the gastrointestinal tract, and (3) determine whether cyanide is absorbed from the diet….