Abstract
The object of this study was to ascertain whether or not there is a relationship between physical strength or weakness of bull spermatozoa and the susceptibility of these cells to freezing and thawing. A tissue disintegrator was employed to produce mechanical injury by shaking. Results of an attempted correlation between survival on shaking and on freeze-thawing with 92 samples from 38 different bulls suggest that death on freeze-thawing is not caused by mechanical injury by ice. Considerations in interpretation are discussed.
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