Tubule length and Leydig cell volume in the normal bull testis.
Data are presented on the size, Leydig cell content and seminiferous tubule dimensions of the normal bull testis. A method of estimating total tubule length, requiring only the measurement of testis volume and the number of tubule cross-sections in a unit area is described, and its applicability to the bull established. The average bull testis contains about 5.2 km of tubules.
D000818:Animals; D002417:Cattle / Q000033:anatomy & histology*; D006652:Histological Techniques; D007985:Leydig Cells / Q000166:cytology*; D008297:Male; D012671:Seminiferous Tubules / Q000033:anatomy & histology*; D013737:Testis / Q000033:anatomy & histology*