Spermatozoa output, testicular sperm reserve and epididymal storage capacity of the Red Sokoto goats indigenous to northern Nigeria

Daudu, C.S. 1984. Spermatozoa output, testicular sperm reserve and epididymal storage capacity of the Red Sokoto goats indigenous to northern Nigeria. Theriogenology 21(2): 317-324.

Fifteen Red Sokoto goats (bucks) aged 2 to 2½ years with a mean body weight of 17.80±1.24 kg were used fer studying daily spermatozoa output, testicular and epididymal sperm reserves. Semen ejaculates were obtained from each buck and evaluated daily for six weeks. Semen characteristics were as follows: volume, 0.72±0.91ml; colour, milky/creamy; sperm concentratien/ml, 0.61±0.05 x 109; mass motiiity, 3.80±0.33; individual motility, 77.50±5.60; and normal sperm + morphology, 80.00±10.50. Mean scrotal circumference was 21.80±0.29. Mean testicular and epididymal (capita, corpora and caudae) weights (gm) were 83.74±5.33, 7.27±0.63, 2.22±0.23 and 6.13±0.73 respectively. Corresponding sperm reserves were 44.32±5.79, 8.82±1.95, 4.99±0.86 and 5.64±7.87 billion. Scrotal circumference was positively correlated to testicular weight (r= 0.86), testicular spermatids (r = 0.77), and caudae spermatgzoa (r = 0.83).