Speed of Spermatozoan Transport in Reproductive Tract of Estrous Cow

Abstract

The APS Journal Legacy Content is the corpus of 100 years of historical scientific research from the American Physiological Society research journals. This package goes back to the first issue of each of the APS journals including the American Journal of Physiology, first published in 1898. The full text scanned images of the printed pages are easily searchable. Downloads quickly in PDF format.

Influence of mating and vaginocervical stimulation on rat uterine activity

“…Three lines of evidence suggest that spermatozoa are actively transported through the uterus by muscular contractions: (a) spermatozoa arrive at the oviducts too quickly (Hartman & Ball, 1931;VanDemark & Moeller, 1951;Settlage et al, 1973) for their intrinsic motility to have brought them there (Harvey, 1960); (b) inert materials placed in the caudal uterus are quickly transported to the oviducts (Amerbach, 1930;Krehbiel & Carstens, 1939;Egli & Newton, 1961); and (c) direct observation has revealed that uterine contractions move spermatozoa (or dye) up and down the uterine horns of rats (Rossman, 1938;Genell, 1939). 'Reprint requests Mating may facilitate sperm transport via its effect on uterine contractions.…”

“…Mating-associated stimulation is known to alter the rate and strength of uterine contractions in several species (e.g. cows: VanDemark & Moeller, 1951;VanDemark & Hays, 1952, 1954women: Masters & Johnson, 1966;rabbits: Krehbiel & Carstens, 1939;macaques: Goldfoot, Westerborg-vanLoon, Groeneveld & Slob, 1980). Moreover, without stimulation that induces uterine contractions, the females of some species cannot achieve pregnancy (e.g.…”

Competition Between Fresh and Aged Spermatozoa in Fertilizing Rabbit Eggs

“…Spermatozoa, whether motile or immotile, and inert particles reached the site of fertilization in cows and sheep equally well within a few minutes of insemination (VanDemark & Moeller, 1951;Mattner & Braden, 1963 Rabbit spermatozoa require 6 hr for capacitation, which is necessary before they establish contact with the eggs and penetrate the zona pellucida (Austin, 1951 ;Chang, 1951 ;Bedford, 1967). In this study, 10 hr elapsed from insemina¬ tion to ovulation which is more than adequate for capacitation.…”

Spermatozoa in the Genital Tract of the Ewe I. Rapidity of Transport

“…In three species it has been shown that inert material can traverse the female genital tract. Non·motile spermatozoa (Van Demark and Moeller 1951) and radio· opaque oil (Rowson 1955) passed rapidly from the cervix to the fallopian tubes in cows treated with oxytocin. In women undergoing hysterectomy, Egli and Newton (1961) found that carbon particles deposited in the anterior vagina were rapidly transported to the fallopian tubes.…”