Table 1. Captive western, gray wolf semen analysis results at time of collection.
| Collection Date | Wolf ID (Date of birth) | Collection Method | Percent motile sperm | Sperm Vigor* | Volume (ml) | Comments |
| 16 Jan 2012 | 486 | M | 90 | 4 | 4.5 | |
| (19 May 2011) | ||||||
| 487 | M | 50 | 4 | 4 | ||
| (19 May 2011) | ||||||
| 18 Jan 2012 | 487 | M | 60 | 3 | 0.6 | |
| 494 | EE | 75 | 4 | 5.3 | Some sperm | |
| (19 May 2011) | agglutination | |||||
| 24 Jan 2013 | 480 | EE | 75 | 3–4 | 4.4 | Some blood |
| (26 Apr 2008) | contamination | |||||
| 486 | EE | 75 | 4–5 | 13 | ||
| 487 | EE | 80 | 4 | 4.5 | Some sperm | |
| agglutination | ||||||
| 494 | EE | 75 | 4 | 5 | ||
| 25 Jan 2013 | 497 | EE | 60 | 4 | 4 | Slight blood |
| (8 Apr 2010) | contamination | |||||
| 499 | EE | 50 | 1 | 3 | Urine | |
| (29 Apr 2011) | contamination | |||||
| 500 | EE | 60 | 4 | 4 | Sperm | |
| (29 Apr 2011) | agglutination | |||||
| 501 | EE | 30 | 4 | 5 | Urine | |
| (29 Apr 2011) | contamination |
*Vigor: 1 = slight side-to-side motion, no forward progress; 3 = rapid side-to-side, forward progress in spurts; 4 = slow, steady, forward progress; 5 = rapid, steady, forward progress.