1576 



SUBJECT INDEX 



Picidae 



incubation patch, 1287 

 parental behavior, role of the sexes, 1299 

 Piciformes 



incubation behavior, l)y male, HOG 

 testis, secretion of estrogen, 1106 

 Pig 



adrenal cortex, secretion of progesterone, 973 

 bulbo-urethral glands, 368 

 congenital malformations, vitamin A and, 691 

 corpus luteum, hysterectomy and, 461 

 corticotrophin, cellular origin, 195, 196 

 crypt orchism, androgen levels, 315 

 developing ovum 



l)lastomere potentialitj', 847 



cleavage rate, 846 



deutoplasmolysis, 847 



tubal transport time, 846 

 ejaculate, volumetric data, 726 

 epididymis 



choline derivatives in, 387 



fluid, 716 

 estrus 



and ovulation, temporal relations, 1192 



postpartum, 458 

 fetal testis, liormonal activity, 145 

 Cra.-ifiaii follicles, histology, 456-457 

 hyi)()pliyseal acido!)hils 



]jrolactin in, 176 



somatotrophin in, 176 

 hypophyseal cell tyjjes, corticotrophin distri- 

 bution, 176 

 hypophyseal cytology during l)reeding cycle, 203 

 hypophyseal gonadotrophin secretion 



age of animal and, 257 



cyclic fluctuations, 259 



fetal, 256 

 identification of genetic sex, 55 

 iiiterniedin, cellular origin, 201 

 intei-sexes, 52 



sex l)ehavior, 1199 

 litter size, 961 

 manunary gland 



at parturition, 596-597 



during lactation, 596 

 masculine behavior by female, 1190 

 mating behavior, 1174 



of female, 1186 



of male 



castration and, 1182 

 estrogen and, 1195 

 milk-ejection 



adrenaline and, (V25, 1324 



electric shock inhil)ition, 1324 



oxytocin and, (i23 

 ovarian follicular growth, 455 



age of animal and, 478 



during pregnancy, 458 

 oviduct, cyclic changes, 819 

 ovulation, temporal relation to heat, 514 

 ovum 



growth, 807 



postovulatorv, 818 



size, 812 



transfer, 800-801 



tubal, 828 

 parental behavior, nursing, 1321 

 pars intermedia, staining method, 186 

 placenta, fetal -maternal junction, 896, 900-901, 



909, 916, 932-933 

 placental l)nnier, layers of, 896, 900-901, 914, 



91(i. '.!:;■_' \r.v.\ 

 placental liisi ocheniistry, 922, 924, 927, 928, 

 932-933, 937-938, 942 



Pig {cont.) 



placental permeability, gestation age and, 943 

 placental transport, 944, 947 

 placental type, 908 

 pregnancy 



and hypophyseal gonadotrophin secretion, 

 260-261 



blood progesterone, 965 



hypothyroidism and, 998 



length, "961 



relaxin levels, 965, 974, 975 



urinary estiogen, 964 

 progesterone secictioii 



in unru|)l uicd follicle, 467 



rate, 474 

 prostate, type, 369 

 reproduction 



age of animal and, 959, 962 



in female, vitamin E and, 686 

 semen, constituents, 381-385, 387-388, 390, 392 

 seminal vesicles 



secretion, constituents, 385, 387-388 



size, 376 

 site of insemination, 727 

 sperm 



enzymes, 756 



epididymal, 762 



fate of non-fertilizing, 744 



hyaluronidase concentration, 829 



transi)()rt in female, 731, 732 

 spermatogenesis, time relationship to androgen 



secretion, 677 

 spermatozoa, first appearance of, 308 

 testis 



autonomic nerves and Leydig cells, 321 



compensatory hypertrophy, 336 



estrogen and, 343 



steroids in, 332 



time of descent, 313 

 uterotubal junction, 737 

 uterus 



carbonic anhydrase activity, 996 



cervical dilation, 1011 



cyto])lasniic basophilia of glands, 937 



secretion of uterine milk, 937 

 Pig, wild 



litter size, 961 

 pregnane}-, length, 961 

 Pigeon 



aggressive behavior, castration and, 1257 

 altricial young, 1298 

 crop gland secretion 



tranquilizing drugs and, 631-632 



visual stimuli and, 277 

 development of liehavior, parental care and, 



1357 

 egg-laying 



manipulation of eggs and suppression of, 1283 



pattern, 1277, 1282-1283^ 



presence of male and, 1279 



visual stimuli and, 277, 1143 

 emetic responses, conditioning to external stim- 

 uli, 1346 

 feminine behavior by males, 1179 

 gonadotrophin stimulation of testis, adrenaline 



and, 1104 

 hybridization with ring dove, 48 

 hypophysis 



innervation, 1099 



prolactin in, 1101 

 in bioassay for prolactin, 1152-1153 

 incubation 



and secretion of prolactin, 1290, 1296 



