Nerve Sheath Tumor in a Cynomolgus Macaque (Macaca fascicularis) and Diagnostic Differentiation from Amelanotic Melanoma.

There are few reports describing spontaneous neoplasms in cynomolgus macaques, despite the frequent use of this species in laboratory research. This report describes cytologic, histologic, and immunohistochemical findings of a cutaneous to subcutaneous nerve sheath tumor located within the haired skin of the abdomen of a 2.5-y-old, intact, female, captive Mauritius cynomolgus macaque.

Effects of Short-Duration Artificial Ultraviolet B Exposure on 25-Hydroxyvitamin D Concentrations in Domestic Rabbits ().

Vitamin D is an important hormone that can be acquired through diet, exposure to ultraviolet B (UVB) radiation, or a combination of these methods. In domestic rabbits (), both methods appear viable, but there is limited research evaluating the effects of UVB on this species. Previous studies found that 12 h of artificial UVB radiation significantly increased 25-hydroxyvitamin D (25-OHD) concentrations over time.