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| Organ | Contribution, % | Composition |
|---|---|---|
| Seminal vesicles | 65-75 | Alkaline, fructose, citrate, prostaglandins |
| Prostate | 25-30 | Acid phosphatase, citric acid, serine proteases, zinc and other electrolytes |
| Vas deferens | 5-10 | Spermatozoa |
| Bulbourethral glands | 1-2 | Pre-ejaculate, galactose, mucous |
