Table 1 Overview of some general characteristics, the results of the measurements of the testicular size, and the semen characteristics (pre-freeze and post-thaw) of each individual (n1 – n4)
From: Semen collection, evaluation, and cryopreservation in the bonobo (Pan paniscus)
| Â | n1 | n2 | n3 | n4 | |||
|---|---|---|---|---|---|---|---|
Date of birth | 16/04/1998 | 19/04/1998 | 23/07/1994 | 29/01/2006 | |||
Weight (kg) | 38.55 | 39.75 | 38.70 | 33.70 | |||
Left testicle (cm) | 6.0 × 3.6 | 7.8 × 5.1 | 5.6 × 4.0 | 7.0 × 4.5 | |||
Right testicle (cm) | 5.5 × 4.0 | 7.6 × 5.5 | 5.5 × 4.5 | 7.0 × 4.3 | |||
Total scrotal circumference (cm) | 24 | 30 | 25 | 27 | |||
Volume of semen (µl) | 400 | 100 | 300 | 1000 | |||
Amount of diluter (µl) | 2000 | 500 | 1600 | 5000 | |||
Number of cycles | 2 | 3 | 3 | 4 | |||
Voltage at semen emission (V) | 3.0–4.0 | 4.0–5.0 | 3.0 | 3.0–5.0 | |||
Pre-freeze (%) | |||||||
 Total motility | 42 | 40 | 75 | 80 | |||
 Live | 85 | 38 | 83 | 69 | |||
 Dead | 15 | 62 | 17 | 31 | |||
Morphology (%) | |||||||
 Normal | 46 | 46 | 69 | 72 | |||
 Abn. head | 18 | 22 | 22 | 26 | |||
 Abn. tail | 36 | 32 | 9 | 1 | |||
 Prox. prot. dropl | 0 | 0 | 0 | 1 | |||
 Dist. prot. dropl | 0 | 0 | 0 | 0 | |||
Post-thaw (%) | 1-step medium | 2-step medium | 2-step medium | 1-step medium | 2-step medium | 1-step medium | 2-step medium |
 Total motility |  < 5 | 5 | 15 | 25 | 30 | 12 | 26 |
 Live | 4 | 16 | 15 | 24 | 29 | 16 | 25 |
 Dead | 96 | 84 | 85 | 76 | 71 | 84 | 75 |