The relationship of scrotal circumference to histological testicular parameters and sperm reserves.
Bonsmara bulls (n = 10) were castrated at 410 d of age. Their scrotal circumference varied between 31.0 and 42.0 cm (mean: 36.0; SD: 1.7). Bulls were divided into above average (> 36 cm) and below average (< 36 cm) groups. Significant correlations were reported for scrotal circumference with seminiferous tubules diameter (r = 0.84), percentage vacuolisation (r = -0.74) and epididymal sperm reserves (r = 0.79). A significant linear relationship (Y = 3.9 X = 105.3) was reported between scrotal circumference and epididymal sperm reserves.
Swanepoel
F J
FJ
Department of Livestock Science, University of Pretoria, Republic of South Africa.
Lubout
P C
PC
Christie
J
J
D000818:Animals; D002417:Cattle / Q000033:anatomy & histology* / Q000502:physiology; D002452:Cell Count; D004822:Epididymis / Q000033:anatomy & histology / Q000502:physiology; D008297:Male; D012611:Scrotum / Q000033:anatomy & histology* / Q000502:physiology; D012671:Seminiferous Tubules / Q000033:anatomy & histology / Q000502:physiology; D013094:Spermatozoa / Q000502:physiology*; D013737:Testis / Q000033:anatomy & histology* / Q000502:physiology