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A computerized motility analyzer (CellTrak/STM) was calibrated for its use with ram semen. Adjustment of the several setup variables allowed an accurate measurement of kinetic parameters such as percentage of motile cells, straight velocity, curvilinear velocity, linearity and amplitude of lateral displacement of the head. All kinetic parameters, except the lateral displacement of the head, showed significant changes after freezing and thawing. The curvilinear velocity exhibited the least significative post-thaw decrease. The alterations in kinetic parameters provoked by freezing and thawing could account for the low success obtained with frozen semen by cervical insemination, as it is accepted that during the initial steps of fertilization high motility and linearity are required.
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
January 1987,
Zeitschrift fur mikroskopisch-anatomische Forschung,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
September 2010,
Journal of the South African Veterinary Association,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
February 2004,
Reproduction (Cambridge, England),
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
January 1997,
Reproduction, fertility, and development,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
November 2019,
Andrologia,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
January 2012,
Journal of andrology,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
February 2004,
The Journal of reproduction and development,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
January 2021,
Domestic animal endocrinology,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
January 2001,
Reproduction, fertility, and development,
D F Moses, and
M A de las Heras, and
A Valcárcel, and
L Pérez, and
H Baldassarre
May 2010,
Animal reproduction science,
