Table 1 Mean values (± SD) of each morphometric parameter corresponding to bull sperm migrated or not migrated by thermotaxis

Length, µm

9.14 ± 0.38

9.24 ± 0.36^**

Width, µm

4.17 ± 0.22

4.24 ± 0.23^**

Perimeter, µm

32.45 ± 1.79

34.15 ± 2.03^***

Area, µm²

37.83 ± 2.20

38.80 ± 1.82^***

Ellipticity, L/W

2.20 ± 0.15

2.19 ± 0.15

Rugosity, 4πA/P²

0.46 ± 0.06

0.42 ± 0.05

Elongation, (L-W)/(L + W)

0.37 ± 0.03

0.37 ± 0.03

Regularity, πLW/4A

0.79 ± 0.07

0.79 ± 0.06