Parameter | 6-week cohort | 13-week cohort | ||||
---|---|---|---|---|---|---|
Control | Glyphosate | Roundup | Control | Glyphosate | Roundup | |
No. of males examined | 8 | 8 | 8 | 10 | 10 | 10 |
Sperm number (× 106/g testis)a | 90.3 ± 22.0 | 83.7 ± 15.6 | 81.0 ± 12.0 | 109.4 ± 17.9 | 107.9 ± 11.3 | 119.6 ± 20.2 |
Daily sperm production (× 106/g testis)a | 14.8 ± 3.6 | 13.7 ± 2.6 | 13.3 ± 2.0 | 17.9 ± 2.9 | 17.7 ± 1.8 | 19.6 ± 3.3 |
Cauda epididimal sperm number (× 106)a | 51.2 ± 10.5 | 51.9 ± 10.5 | 50.9 ± 10.7 | 129.5 ± 28.5 | 125.9 ± 14.0 | 122.7 ± 11.0 |
Caput/corpus epididimal sperm number (× 106)a | 67.6 ± 6.1 | 66.5 ± 7.9 | 66.5 ± 10.6 | 97.0 ± 16.4 | 93.3 ± 13.0 | 93.2 ± 8.8 |
Sperm transit time through caput + corpus of epididymis (days)a | 4.8 ± 1.3 | 5.0 ± 1.1 | 5.1 ± 1.0 | 5.5 ± 0.8 | 5.3 ± 1.0 | 4.8 ± 0.7 |
Sperm transit time through cauda of epididymis (days)a | 3.5 ± 0.5 | 3.8 ± 0.8 | 3.9 ± 0.8 | 7.4 ± 1.8 | 7.2 ± 0.9 | 6.4 ± 1.1 |
Sperm transit time through epididymis in toto (days)a | 8.3 ± 1.7 | 8.8 ± 1.5 | 8.9 ± 1.8 | 12.8 ± 2.2 | 12.5 ± 1.7 | 11.2 ± 1.7 |
Total abnormal sperm (%)a | 6.3 ± 1.3 | 6.4 ± 1.8 | 6.3 ± 1.4 | 4.6 ± 1.4 | 4.3 ± 1.9 | 3.5 ± 1.3 |