Individual motility

INDIVIDUAL MOTILITY

  • A drop of semen diluted in physiological saline or sodium citrate buffer is covered with a cover slip and examined under a magnification of 200X
  • Only sperms moving in a progressive linear direction are counted.
  • Individual motility is expressed as per cent of sperms moving in progressive linear direction (Settergren, 1984).
  • Buffalo bull fresh semen, lacking in initial mass activity is diluted, incubated at 370C for 5 minutes and then examined for individual motility.
  • The motility in Jersey and Murrah bulls is classified and scored (Nwakalor and Ezinma, 1989) as follows.

The bulls used in AI programme should have at least 60 per cent individual motility.

MOTILITY(%)

70

50 - 70

30 - 20

30

SCORE

20

12

10

3

Last modified: Monday, 4 June 2012, 10:50 AM