Volume Contribution: The prostate secretes a milky or white fluid that accounts for roughly 30% of seminal fluid.

Protein Content: The protein content in prostatic fluid is less than 1%.

Key Enzymes: Contains proteolytic enzymes, prostatic acid phosphatase, and prostate-specific antigen (PSA), which are important for liquefaction of semen.

Zinc Concentration: Prostatic fluid has a high zinc concentration (500–1,000 times that in blood), which provides antibacterial properties.

Overall Function: These components help to ensure sperm viability and promote successful fertilization.

Review: Spermatogenesis (Physiology 2)