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).