In Vitro Speeds of Bovine Spermatozoa

Moeller, Alma; Vandemark, N. L.

doi:10.1016/s0015-0282(16)32161-6

Cited by 13 publications

(3 citation statements)

References 7 publications

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“…After insemination, sperm have been found in the tips of the uterine horns of mares within eight minutes (Katila and others 2000) and in the oviducts within two hours (Bader and Krause 1980, Bader 1982). Individual sperm move too slowly to account for such rapid transport (Moeller and Van Demark 1955), suggesting that uterine contractions rather than active sperm movement may be responsible for moving sperm towards the site of fertilisation. However, the mechanism(s) by which uterine contractions may be initiated in the mare at coitus have not been established (Troedsson and others 1998).…”

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Effect of teasing, mechanical stimulaton and the intrauterine infusion of saline on uterine contractions in mares

Campbell

England

2004

Veterinary Record

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Uterine motility may have significance for the transportation of spermatozoa and the elimination of the ejaculate and inflammatory products after mares have been covered. The effect of some of the component stimuli of coitus on uterine contractions was investigated by using M-mode ultrasound. The number, amplitude and duration of the uterine contractions of each uterine horn and of the uterine body were measured in oestrous mares for four minutes before and four minutes after teasing by a stallion, mechanical stimulation of the vagina and cervix, the intrauterine infusion of 80 ml of sterile saline, the intrauterine infusion of 10 ml of sterile saline, the intrauterine infusion of 150 ml of sterile saline, and the transcervical passage of a uterine catheter. Teasing by a stallion did not affect the total number, mean amplitude or mean duration of the uterine contractions. Mechanical stimulation of the vagina and cervix increased the total number of uterine contractions, but did not affect the amplitude or duration of the contractions. The intrauterine infusion of 80 ml of sterile saline resulted in an increase in the total number of contractions and a significant increase in the mean amplitude and the mean duration of the contractions in the uterine horns but not the uterine body. The intrauterine infusion of 10 ml of sterile saline caused a significant decrease in the number of uterine contractions in the uterine horns, but had no effect on the contractions of the uterine body. The infusion of 150 ml of sterile saline reduced the number of contractions in the uterine horns but not the uterine body, and did not affect the mean amplitude and mean duration of the contractions. The transcervical insertion of a catheter reduced the number of contractions in the uterine horns, but did not affect the amplitude or duration of the uterine contractions.

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confidence: 99%

Effect of teasing, mechanical stimulaton and the intrauterine infusion of saline on uterine contractions in mares

Campbell

England

2004

Veterinary Record

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“…Glaser (1924) in a study of the effects of temperature on the Paramecium; Kamada in a study of the effects of direct electric current on the Paramecium; Chase and G-laser (1930) in a study of the effects of pH changes on the Para mecium; Mills (1931) in a study of the effects of pH changes on Colpidlum: Moeller and VanDemark (1955) and Baker, Cragle, Salisbury and VanDemark (1957) In studies of the motility of bovine spermatozoa; and many others.…”

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confidence: 99%

Photographic scanning and its application in the general physiology of motile cells

Ferguson

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“…Effect of acetylcholine chloride on rate of locomotion vi PREFACE There can be no serious question about the lndispensability of new instruments for scientific acvance; many current discoveries would have been quite impossible without use of the specially de signed instruments made possible by modern tech nology, Instruments that could not have been de vised at an earlier stage in history* Improved instruments will surely be no less important for research progress In the future. Glaser (1924) in a study of the effects of temperature on the Paramecium; Kamada (1928-31) in a study of the effects of direct electric current on the Paramecium; Chase and G-laser (1930) in a study of the effects of pH changes on the Para mecium; Mills (1931) in a study of the effects of pH changes on Colpidlum: Moeller and VanDemark (1955) and Baker, Cragle, Salisbury and VanDemark (1957) In studies of the motility of bovine spermatozoa; and many others. Under these conditions, no parts of the sensitive emulsion are affected by the exposure except those traversed by the point images of the brilliantly lighted cells.…”

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Photographic scanning and its application in the general physiology of motile cells

Ferguson

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of selecting and watching one cell at a time, as the human observer must, the emulsion of the photographic scanner watches and impartially records the movements of many or all of the cells in an experimental population simultaneously» By being able to furnish statistical information on the re sponses of entire populations as well as on all of the in dividuals in those populations, the photographic method is superior to any direct observation method. The first use of photography in determining the rate of locomotion of microorganisms appears to have been that of Gomandon (1917, 1919), who employed a time-lapse motion pic ture technique (one frame every six seconds) to study the chemotactie movements of phagocytes in parasitised blood. More recently, Schlenk and Kahmann (1939) and Rlkmenspoel (1957) have used standard-speed cinematographic methods in studies of the locomotion of the sperm cells of the trout and bull, respectively. The measurement of locomotor velocity from motion pic ture records is a tedious process, necessitating, in effect, a reprojection of the entire film record for each cell stud ied. The single-frame time exposure technique makes it pos sible to avoid this difficulty. Wense (1935), in a study of the effects of various neuropharmacological agents on the Paramecium, was apparently the first to make use of this type of photography. In his photographs, made with one-0

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In Vitro Speeds of Bovine Spermatozoa

Cited by 13 publications

References 7 publications

Effect of teasing, mechanical stimulaton and the intrauterine infusion of saline on uterine contractions in mares

Effect of teasing, mechanical stimulaton and the intrauterine infusion of saline on uterine contractions in mares

Photographic scanning and its application in the general physiology of motile cells

Photographic scanning and its application in the general physiology of motile cells

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