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Table 2 Effect of sperm origin (epididymal cauda, corpus and caput) on subjective sperm motility, vigor, plasma membrane integrity and computer assisted sperm analysis (CASA) in dogs

From: Fatty acid content in epididymal fluid and spermatozoa during sperm maturation in dogs

 

Caput

Corpus

Cauda

Sperm motility, %

0.0 ± 0.0c

27.7.4 ± 3.0b

69.7 ± 4.0a

Sperm vigor (1–5)

0.0 ± 0.0c

2.0 ± 0.1b

2.6 ± 0.1a

Intact plasma membrane, %

40.1 ± 4.7c

74.5 ± 2.3b

92.6 ± 1.1a

% of Motile

0.0 ± 0.0c

34.5 ± 3.5b

71.0 ± 4.4a

% of Progressive

0.0 ± 0.0b

5.5 ± 0.9b

27.8 ± 2.9a

% of Rapid

0.0 ± 0.0c

18.2 ± 2.4b

54.2 ± 4.5a

% of Medium

0.0 ± 0.0b

16.3 ± 1.7a

16.8 ± 2.6a

% of Slow

6.0 ± 2.5

6.0 ± 2.4

10.5 ± 1.4

% of Static, %

94.0 ± 2.5a

54.8 ± 4.4b

23.1 ± 3.6c

VAP, μm/s

0.0 ± 0.0c

66.3 ± 5.5b

94.9 ± 5.6a

VSL, μm/s

0.0 ± 0.0c

37.8 ± 3.7b

67.2 ± 4.6a

VCL, μm/s

0.0 ± 0.0c

142.5 ± 10.3b

178.5 ± 10.0a

ALH, μm/s

0.0 ± 0.0b

7.3 ± 0.6a

7.8 ± 0.3a

BCF, μm/s

0.0 ± 0.0b

32.0 ± 3.1a

28.3 ± 2.2a

Straightness, STR - %

0.0 ± 0.0c

48.9 ± 3.5b

67.4 ± 1.4a

Linearity, LIN - %

0.0 ± 0.0c

26.3 ± 2.4b

38.9 ± 1.5a

  1. Different superscripts in the same line indicate significant differences (P < 0.05)