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. 2015 Jan 23;10(1):e0116797. doi: 10.1371/journal.pone.0116797

Table 3. Characteristics of the frozen-thawed capercaillie semen depending on freezing method (means ± SD).

Male’s number Freezing methods No of samples Morphological forms of sperm [%]
Live in total Live normal Bulb head Bent neck Midpiece deformations Other deformations
51 pellets 12 43.8 b ±9.9 x 25.4 ab ±8.0 8.3 cd ±5.3 6.8 b ±2.8 3.0 a ±1.8 x 0.3 ab ±0.2
straws 57.1 abc ±13.9 y 27.6 a ±9.3 12.9 c ±5.1 9.6 cd ±4.5 6.1 bc ±2.6 y 0.9 b ±0.4
58 pellets 9 38.4 bc ±5.7 x 13.3 cd ±5.7 x 9.1 cd ±2.9 13.6 a ±6.0 x 2.0 abc ±1.3 x 0.4 ab ±0.2
straws 64.4 ab ±7.5 y 22.9 ab ±7.3 y 13.8 c ±5.7 21.3 a ±5.4 y 5.4 bc ±4.0 y 1.0 b ±0.9
9 pellets 8 39.7 b ±7.6 x 24.7 ab ±6.6 7.3 d ±3.3 x 4.8 bc ±3.0 x 2.6 ab ±1.1 x 0.3 ab ±0.1
straws 68.2 a ±8.9 y 26.4 a ±6.9 17.3 bc ±3.0 y 13.3 cd ±6.4 y 10.9 a ±3.4 y 0.3 bc ±0.2
49 pellets 11 55.0 a ±16.3 x 29.3 a ±9.0 x 19.6 a ±7.6 x 4.2 bc ±3.5 x 1.7 abc ±1.0 x 0.2 b ±0.3
straws 66.4 ab ±13.3 y 21.7 ab ±5.1 y 24.0 a ±6.4 y 14.7 bc ±9.0 y 4.0 c ±2.4 y 0.0 c ±0.0
67 pellets 8 40.8 b ±11.7 x 19.2 bc ±7.6 16.7 ab ±3.9 3.7 bc ±2.0 x 1.2 c ±0.7 x 0.0 b ±0.0
straws 56.1 b ±20.2 y 22.1 ab ±11.7 17.7 bc ±9.2 9.1 d ±6.1 y 6.9 b ±3.2 y 0.3 bc ±0.1
72 pellets 12 30.0 c ±7.3 x 11.8 d ±5.4 13.0 bc ±7.3 1.9 c ±1.4 x 2.5 ab ±1.6 x 0.8 a ±1.0 x
straws 62.2 ab ±13.3 y 9.8 c ±4.3 14.6 c ±4.3 19.7 ab ±7.3 y 11.4 a ±3.4 y 6.7 a ±4.8 y
79 pellets 9 41.5 b ±6.7 22.2 b ±8.0 11.1 cd ±4.6 6.5 b ±3.5 1.5 bc ±0.7 x 0.2 b ±0.1
straws 49.7 c ±10.7 16.7 b ±4.4 19.9 b ±6.0 8.4 d ±5.3 4.7 bc ±2.9 y 0.0 c ±0.0
Total/Average pellets 69 42.5±12.4 x 22.2±9.0 12.4±6.7 x 5.6±4.7 x 2.1±1.4 x 0.3±0.5
straws 60.7±13.8 y 22.4±8.8 17.0±7.0 y 13.6±7.9 y 6.6±3.8 y 1.0±2.2

a,b,c,d—means in columns for the same freezing method, followed by different superscripts differ significantly (P<0.05);

x,y—means in columns for the same male indicate significant differences between freezing method (P<0.05).