[Show abstract][Hide abstract] ABSTRACT: To assess the stress level of cheetahs reared in Japan and to identify the prime components of the climatic conditions that affect their thermal stress, fecal corticosterone was monitored for 8 months from May to the following January. A total of 203 fecal samples were gathered in the morning from seven adult cheetahs that were kept at a zoological garden in Wakayama, Japan. Cheetahs were on exhibit singly or together with a harmonious conspecific during the day, but housed singly at night. Although the monthly fluctuation in corticosterone concentrations was not significant, the concentrations were relatively low during the summer season. Individual differences among cheetahs and the interaction effect between individual and month on the corticosterone concentrations were significant. Whereas the corticosterone concentrations negatively correlated with air temperature, they were positively correlated with the amount of rainfall. The highest air temperature and the amount of rainfall were extracted as the prime factors affecting corticosterone concentrations. These results suggest that cheetahs reared in Japan are somewhat subjected to thermal stress, particularly on cooler and/or rainy days.
No preview · Article · Jun 2014 · Animal Science Journal
[Show abstract][Hide abstract] ABSTRACT: This report describes hepatic multiple myelolipoma with severe coelomic edema in a 14-year-old, male red-bellied tamarin (Saguinus labiatus). Multiple small and large nodules were formed in all lobes of the liver. Histopathologically, the nodules comprised mature and normal adipocytes and hematopoietic elements at various ratios that were composed of granulocytic, erythrocytic, and megakaryocytic series in various phases of maturation. All nodules were encapsulated and demarcated hepatocytes around masses. Myelolipoma in the liver is rare, and there are no reports of any cases to date. To our knowledge, this is the first report of hepatic multiple myelolipoma in a red-bellied tamarin.