Oct 11, 2014

Effect of proctodeal gland foam on sperm kinetics in Japanese quail (Coturnix japonica)

U FarooqI A Malecki


The proctodeal gland of the male Japanese quail produces thick foam that accompanies semen when it is transferred to the female. It is thought that this foam enhances fertilization by improving the motility of the sperm, but reports are conflicting because the effect of foam on sperm motility has only been assessed subjectively The velocity of individual sperm was not able to be measured accurately, variations were large, and small changes in motility could not be accurately evaluated. So, we tested the hypothesis that foam affects the motility of spermatozoa of Japanese quail by analyzing motility objectively using computer-assisted semen analysis and determining changes in sperm kinetics in the presence of different concentrations of proctodeal gland foam. The addition of 5% or 10% foam to the sperm suspension increased (P < 0.05) all sperm kinetic parameters (the curvilinear velocity, straight line velocity, the velocity of the average path, linearity, straightness, and beat cross frequency). As a result, the percentage of motile and progressive motile sperm also increased. All these parameters declined (P < 0.05) with a further increase in the concentration of foam to 15% and 20%. Furthermore, this effect was similar in mal...Continue Reading

Mentioned in this Paper

Seminal Fluid
Sperm Concentration Measurement
Cell Motility
Cloaca Chamber
Entire Reptile AND/OR Avian Cloaca Structure
Semen Analysis; Presence AND/OR Motility OF Sperm Excluding Huhner
Semen Analysis Procedure
Infertility Study
Sperm Cell

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