1 GOAT SEMEN COLLECTION AND PROCESSING BY DR. LOUIS ...

not appear to act "normally". Most reports indicate (Huat, 1975; Smith, 1978) an average
motility score of 85%. Semen with an initial motility much below this should probably not be
processed any further.
MORPHOLOGY
When sperm morphology is evaluated (Fig. 5), one usually looks for abnormal
shapes of the head and tail. It has become popular to examine the morphology of a portion
of the head, the acrosome. Examination of the acrosome requires the use of a fairly
sophisticated microscope fitted with either phase-contrast or differential interference optics.
Even though researchers find measurement of acrosomal integrity helpful, most bull studs
to do not perform this evaluation because of the time and expense in making this
measurement.
FIGURE 5: Some Traits of Normal and Abnormal Semen.
Normal
Normal
Coiled
32
Shoehook
See following pages for additional morphological traits.
FIGURE 5A:
Bent
Immature