236 



The Biochemistry of Semen 



Prostate gland, secretory function, 

 16-20, 130-3, 168-73, 181, 184-8, 

 zinc, 19; phosphatases, 117-19; 

 corpora amylacea, 131-3; amino 

 acids and transaminases, 19-20, 

 188; in the female, 187 



Prostatic calculi, 131 



Prostatic cancer, 119 



Prostatic phosphatase, see acid 

 phosphatase 



Prostatic secretion, species charac- 

 teristics, 16-20, 130, 184-5; pH, 

 17; effect on sperm, 25; enzymes, 

 17, 114-19; mineral constituents, 

 18; fructose, 16, 138; citric acid, 

 16-19, 183-8; lipids, 130-3; 

 amino acids, 19, spermine, 166-7 



Protamines, 98-9, 106-9 



Proteins, extracellular, 19, 22, 76, 

 84, 111-23; intracellular, 14, 43, 

 83-110, 124; release from sperm, 

 10, 57, 74, 83; in coagulation and 

 liquefaction, 28-34, 114-15; effect 

 on sperm, 55, 64, 76, 79 



Proteolytic enzymes, in semen and 

 reproductive organs, 17-19, 29, 

 96, 114-16; effect on sperm, 14 



Proteose, seminal, 19, 22, 111-14 



Psammechinus {see also sea-urchin), 

 76 



Pseudo-hypophysectomy, effects, 

 148-9, 186 



Pteridium aquilinum, motility and 

 cytochrome, 92 



Puranen reaction, 165 



Pyrophosphatase, 122 



Pyrophosphorylcholine, 171 



Pyruvic acid, metabolism, 50, 51, 

 158; as substrate, 50-2, 158 



Quality of semen, relation to other 



properties of semen, metabolism 



and fertility, 38-53, 78, 92-3, 138 



Quercetin glycosides in pollen, 72 



Quinones, spermicidal properties, 



57, effect on hyaluronidase, 98 



Rabbit ampullar secretion, 138, 185 

 Rabbit glandula seminalis, 21 

 Rabbit glandula vesicularis, 16, 21, 



138, 172, 185 

 Rabbit prostate, 16; fructose, 16, 

 138, 144-5; adrenaline, 181; 

 citric acid, 185 

 Rabbit semen, volume and density, 

 2, 31; sperm structure, 11; 

 motility and fertility, in relation 

 to extraneous factors, 6, 9, 56, 

 59-62, 78, 97; physico-chemical 

 properties, 41-^4, 60-2; gel, 28, 

 34; fructose, 32, 34, 136-7, 140-7; 

 citric acid, 184-6; lipids, 126, 

 131; hyaluronidase, 94; respira- 

 tion, 49-50; castration and hor- 

 mone effects, 140-6 

 Rabbit testis, choline, 170 

 Radiation effects, 58-60 

 Radioactive compounds, 178 

 Ram semen, volume, density and 

 composition, 2, 32-3, 107; 

 sperm structure and disintegra- 

 tion, 11, 87, 110, 126; time re- 

 quired to reach the ovum, 9; 

 nucleic acid, 55, 88, 102, 107; 

 proteins, 88-110, 113; ammonia, 

 32, 116; glycogen, 5; fructose and 

 fructolysis, 32-4, 136, 152-9; 

 enzymes, 87, 93, 120-2, 150-9, 

 174; lipids, 107, 126; respiration 

 and cytochrome, 49-53, 87, 90-1; 

 phosphorus compounds, 107, 

 155; citric acid, 184; temperature 

 effect, 62; dilution effect, 77-9; 

 irradiation effect, 59 

 Rat coagulating gland, fructose 

 formation, 16, 138-44; role in 

 coagulation, 29 

 Rat preputial gland, dehydrocho- 



lesterol, 133 

 Rat prostate, structure and func- 

 tion, 16, 19, 138, 184-5; in the 

 female, 187; fructose, 19, 138-44; 

 citric acid, 19, 185-7; zinc and 



