SUBJECT INDEX 



1541 



Ferret (cont.) 



corpus luteum (cont.) 



functioning, hysterectomy and, 538 



pseudopregnancy and, 533 

 develo])ing ovum 



cleavage rate, 846 



deutoplasmolysis in, 847 



tubal transport time, 846 

 estrus 



and follicular growth, temporal relations, 1192 



constant state of, 499 



estrogen and, 1190 



off-season, hypothalamic lesions and, 510 



termination by progesterone, 1189, 1206 

 fertilization 



cytology of, 827 



polyspermy, 845 

 hypophyseal anatomy, innervation, 273 

 hypophyseal cytology, carminophil-orangeophil 



distinction, 177-178 

 identification of genetic sex, 55 

 litter-size, 960 



mammary development, ovarian hormone re- 

 quirements, 601 

 ovarian fertilization, 822 

 ovarian follicular growth, 456, 500, 505 

 ovulation 



coitus and, 277 



interval after gonadotrophin release, 514 

 ovum, 807, 811, 812 



fate of unfertilized, 837 



fertilizable life, 849 



maturation, 816-817 

 l)regnancy 



hypophysis and, 1006 



length, 960 

 pseudopregnancy, 532-533 

 reflex ovulation, 499 

 reproduction, hypophyseal stalk transection 



and, 283' 

 seasonal breeder, 315-316 

 sperm 



at site of fertilization, 738 



duration of fertilizing capacity, 738 



survival time in female, 738 

 spermatogenesis, hypophysectomy and, 342 

 testis, hypophysectomy and, 335 

 Fertility (see also Sterility) 



control, immune processes and, 745 



fowl, comb size and, 1091 



male 



sperm-DNA deficiency and, 755 



sperm immunization and, 746-748 

 rat, female, age of animal and, 959, 961 

 Fertilization, 827-850 

 chemotaxis and, 773-774 

 cumulus oophorus dispersal, 829 

 cytologic changes, 827, 837-844 



in sperm, 838-844 



within ovum, 837-841 

 hyaluronidase and, 829-831 

 intrafoUicular 



in fishes, 1054 



in mammals, 822 

 in vitro, 835-836 

 polyspermy, 845 



pronuclei, DNA duplication in, 841 

 site of 



in cold-blooded vertebrates, 1054-1056 



in mammals, 822 

 Fertilizin (gynogamone I), 773-775, 834 

 Fetal abnormality (see Developmental defects) 



Fetal gonadal hormones, 143-145 



comparison with adult, 146-148 



source in testis, 144-145 

 Fetal gonads (see Embryonic gonads) 

 Fetal loss (see Developmental mortality) 

 Fibrinogenase, 397 

 Fibrinoids, placental, 942-943 

 Fibrinolysin, 397 



estrogen and amount of, 652 

 Finches 



incubation patch, estrogen-prolactin induction, 

 1288-1289, 1353 



social behavior, genetic basis, 1244 

 Fish 



breeding aggregations, seasonal formation, 1250 



cori)us luteum, 1058 



delayed implantation, 851 



digametic females, 7 



embryogenesis, intraovarian, 1054-1055 



fertilization, intraovaiian, 1054 



gonad transformation, regardless of genotype, 

 110 



hermaphroditism , 1062-1064 



hypophyseal cytology, 177-178, 188 



hypophyseal gonadal relations, 252 



hypophyseal hormones, })rolactin, 254 



hypothalamic -neurohypophyseal tracts, 223 



kidney, accessory rejjroductive function, 377 



masculine behavior 

 by female, 1186 

 b.y male, estrogen and, 1194 



mating behavior, 1174, 1186 



neurosecretion, 225 



orchiectomy, general effects, 1044 



ovary, types, 1048-1049 



oviduct, 1051 



oviparity, 1056 



ovoviviparity, 1056 



ovum, vitamins in, 686 



pseudohermaphroditism, 1063 



reproductive tracts, development, 1060 



responses to estrogen, 1053 



responsiveness to gonadotrophins, cross-species 

 tests, 252 



sex determination, 45-47 



sex differentiation, estrogens and, 1067 



sex reversal, 1064-1065, 1067 

 androgen and, 1066, 1067 



social behavior, 1242 

 genetic basis, 1244 



somatotrophins, cross-species test, 255 



sperm storage in female, 1055 



testes, source of androgens, 1037 



viviparity, 1057, 1058 



XX, XY] YY genotyjDes, 47 

 Flavins, in seminal vesicles, 392 

 Folic acid 



and comb response to androgen, 1126 



and deciduoma formation, 688 



and ovi ducal response to androgen in fowl, 1126 



and oviduct in birds, 688 



and purine synthesis, 1126 



deficiency, and fetal mortality, 692 



mechanism of action, 688 

 Follicle-stimulating hormone (see under Hypo- 

 physeal gonadotrophins) 

 Food-hoarding in rats, litter-size and, 1358 

 Foreclaws in Pseiidemijs, gonadal hormones and, 



1054 

 Fox 



fertilization, cytology of, 827 



identification of genetic sex, 55 



ovum, maturation, 817 



