동면중 반달가슴곰에 대한 혈중 Progesterone치와 초음파진단기를 이용한 임신진단

Pregnancy Diagnosis by Measuring Serum Progesterone Level and Ultrasonography for Asiatic Black Bear(Ursus thibetanus) Being under Hibernation

Pregnancy diagnosis by ultrasonography was performed for both pregnant and non-pregnant Asiatic black bears which were being under hibernation. Pregnancy was diagnosed for a pregnant bear by detecting images of heart-beat and vertebrae on ultrasonograph. Serum progesterone levels were measured for both pregnant and non-pregnant bears. The level of serum progesterone was 5.79 ng/ml for a pregnant bear and 0.76 ng/ml for a non-pregnant bear, respectively, thereby it was considered that measurement of serum progesterone level can be also useful for pregnancy diagnosis for Asiatic black bear.