Veterinary Department, Federal University of Viçosa, Minas Gerais 36571-000, Brazil.
Theriogenology. 2012 Mar 15;77(5):873-80. doi: 10.1016/j.theriogenology.2011.09.011. Epub 2011 Dec 6.
Six adult Leopardus tigrinus (oncilla) were studied to characterize stages of the seminiferous epithelium cycle and its relative frequency and duration, as well as morphometric parameters of the testes. Testicular fragments were obtained (incisional biopsy), embedded (glycol methacrylate), and histologic sections examined with light microscopy. The cycle of the seminiferous epithelium was categorized into eight stages (based on the tubular morphology method). The duration of one seminiferous epithelium cycle was 9.19 d, and approximately 41.37 d were required for development of sperm from spermatogonia. On average, diameter of the seminiferous tubules was 228.29 μm, epithelium height was 78.86 μm, and there were 16.99 m of testicular tubules per gram of testis. Body weight averaged 2.589 kg, of which 0.06 and 0.04% were attributed to the testis and seminiferous tubules, respectively. In conclusion, there were eight distinct stages in the seminiferous epithelium, the length of the seminiferous epithelium cycle was close to that in domestic cats and cougars, and testicular and somatic indexes were similar to those of other carnivores of similar size.
对六只成年豹纹猫（Oncilla）进行了研究，以描述精小管上皮周期及其相对频率和持续时间，以及睾丸的形态学参数。获得睾丸组织片段（切开活检），包埋（乙二醇甲基丙烯酸酯），并通过光镜检查组织学切片。精小管上皮周期分为八个阶段（基于管状形态学方法）。一个精小管上皮周期的持续时间为 9.19 天，从精原细胞发育为精子大约需要 41.37 天。平均而言，精小管的直径为 228.29μm，上皮高度为 78.86μm，每克睾丸中有 16.99m 的睾丸小管。体重平均为 2.589kg，其中睾丸和精小管分别占 0.06%和 0.04%。总之，精小管上皮有八个明显的阶段，精小管上皮周期的长度与家猫和美洲狮相似，睾丸和体指数与其他体型相似的食肉动物相似。
