新潟県沿岸に打ち上げられたオオキバクジラの卵巣組織像について

概要

論文の詳細を見る
A pair of ovaries of a Stejneger's beaked whale, Mesoplodon stejnegeri, were studied histologically. The animal was 4.8m in total length, stranded on the coast of Noh Town, Niigata Prefecture, facing the Sea of Japan, in late February 1993. The ovaries were 42 and 37mm in length and 6.7 and 3.3g in weight, respectively. After removal from the decomposing body, the ovaries were initially preserved in 10% formalin solution. Subsequently, after 15 months, they were postfixed in Bouin's solution. Light microscopy revealed several tens of primary follicles in the connective tissue stroma of the cortical region, in contrast to the conditions in previously described specimens. Well-developed corpora albicantia were present throughout, whereas neither a well-defined corpus luteum nor characteristically coiled and thick-walled arteries were detected in any of the blocks examined.
国立科学博物館の論文
1995-06-22