Table 3. Mean values of kinetic parameters of sperm in each bull and the order of ejaculation.
Bull | Ejaculation order | Replicates | % of motile sperm | VSL (µm/sec) |
VCL (µm/sec) |
VAP (µm/sec) |
ALH (µm) |
BCF (Hz) |
LIN (%) |
---|---|---|---|---|---|---|---|---|---|
A | 1st | 6 | 91.8 ± 3.6 | 117.7 ± 16.9 | 310.9 ± 27.9 | 147.0 ± 17.6 | 5.1 ± 0.2 | 15.6 ± 2.1 | 35.6 ± 3.4 |
2nd | 6 | 92.1 ± 3.7 | 104.1 ± 22.9 | 261.7 ± 58.3 | 125.4 ± 27.5 | 4.0 ± 1.0 | 17.4 ± 1.6 | 36.0 ± 2.5 | |
Total | 12 | 92.0 ± 3.5 | 110.9 ± 21.2a) | 286.3 ± 51.9a) | 136.2 ± 25.5a) | 4.5 ± 0.9a) | 16.5 ± 2.1 | 35.8 ± 3.0 | |
B | 1st | 6 | 90.9 ± 5.9 | 91.7 ± 23.8 | 250.1 ± 63.6 | 117.5 ± 29.7 | 4.2 ± 1.1 | 15.7 ± 2.2 | 34.2 ± 2.1 |
2nd | 6 | 88.1 ± 9.9 | 95.5 ± 20.3 | 243.4 ± 42.9 | 120.2 ± 22.4 | 3.9 ± 0.7 | 16.9 ± 2.6 | 34.6 ± 5.0 | |
Total | 12 | 89.5 ± 7.9 | 93.6 ± 22.2a,b) | 246.8 ± 54.3a,b) | 118.8 ± 26.3a,b) | 4.0 ± 0.9a,b) | 16.3 ± 2.5 | 34.4 ± 3.8 | |
C | 1st | 6 | 91.4 ± 5.2 | 107.0 ± 11.3 | 286.5 ± 28.5 | 134.2 ± 12.2 | 4.7 ± 0.5 | 16.0 ± 1.2 | 33.9 ± 1.4 |
2nd | 6 | 92.0 ± 6.4 | 103.9 ± 9.7 | 282.8 ± 36.5 | 135.0 ± 14.3 | 4.3 ± 0.8 | 18.0 ± 1.5 | 33.6 ± 1.2 | |
Total | 12 | 91.7 ± 5.5 | 105.4 ± 10.6a,b) | 284.6 ± 32.8a) | 134.6 ± 13.3a) | 4.5 ± 0.7a) | 17.0 ± 1.7 | 33.8 ± 1.3 | |
D | 1st | 6 | 86.6 ± 6.7 | 93.9 ± 2.1 | 232.4 ± 18.8 | 114.3 ± 4.5 | 3.8 ± 0.2 | 16.6 ± 1.4 | 35.9 ± 2.1 |
2nd | 6 | 87.8 ± 5.4 | 75.0 ± 21.0 | 197.5 ± 42.6 | 96.6 ± 19.5 | 3.2 ± 0.8 | 17.5 ± 1.6 | 32.5 ± 4.5 | |
Total | 12 | 87.2 ± 5.9 | 84.5 ± 17.6b) | 214.9 ± 37.2b) | 105.4 ± 16.7b) | 3.5 ± 0.6b) | 17.0 ± 1.6 | 34.2 ± 3.9 | |
Average | 1st | 24 | 90.0 ± 6.4 | 101.0 ± 16.8 | 281.3 ± 46.7 | 131.2 ± 21.4 | 4.7 ± 0.8* | 15.4 ± 2.2 | 33.2 ± 3.7 |
2nd | 24 | 90.5 ± 6.6 | 95.2 ± 20.2 | 255.7 ± 52.3 | 121.4 ± 22.6 | 4.1 ± 0.9 | 17.0 ± 2.8* | 33.5 ± 4.0 |
Values are the mean ± standard deviation. a,b) Superscripts indicate significant differences between bulls (P<0.05). *The asterisk indicates a significant difference between ejaculation orders (P<0.05).