What's the difference between ejaculate and semen?
Ejaculate
Definition:
(v. t.) To throw out suddenly and swiftly, as if a dart; to dart; to eject.
(v. t.) To throw out, as an exclamation; to utter by a brief and sudden impulse; as, to ejaculate a prayer.
(v. i.) To utter ejaculations; to make short and hasty exclamations.
Example Sentences:
(1) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
(2) Local application of 8-OH-DPAT (0-5 micrograms) into the median raphe nucleus, facilitated male rat sexual behavior, as evidenced by a decrease in number of intromissions preceding ejaculation and in time to ejaculation.
(3) The sensitivity of ejaculated spermatozoa to ouabain (in inhibitor of Na+-K+ ATPase) was determined on 4 consecutive weeks in November, March-April, and July-August.
(4) One ejaculation followed by daily contact with soiled bedding taken from a male's cage did not increase pregnancy rates.
(5) The time of sperm penetration in the mouse eggs, however, was delayed for one-half to one hour when ejaculated sperm were used.
(6) The hymen was not penetrated as a result of intromission and therefore the site of ejaculation would have been in the urogenital canal of the 4 primigravid elephants.
(7) For each ejaculate the ratio of X- and Y-bearing sperm was analysed before and after sephadex filtration using three different methodologies: sperm chromosome analysis after fusion of human sperm with hamster oocytes, deoxyribonucleic acid analysis using the Y-preferential probe pS4 and the fluorescent Y-body test.
(8) Two ejaculates were harvested by electroejaculation on each of 3 d per week for 14 wk from 14, 12- to 24-mo-old Holstein bulls.
(9) The group of animals with sexual disorders included boars with inferior ejaculate quality and low fertility (24 animals) and cases with disturbed sexual potency (33 boars).
(10) A multicenter study of electro-ejaculation is currently in process in the USA, but as these are limited experiments, the preliminary results do not permit to draw any conclusion.
(11) Relaxin in seminal fluid was determined radioimmunologically in 238 andrological patients with various ejaculate qualities.
(12) Malnourished male rats ejaculated less frequently than controls in tests with sexually receptive female rats but this difference disappeared with repeated testing.
(13) The impulse installment of chemoluminescence increased during the time of storage of the ejaculate.
(14) Sperm progression into the filter reflected the motility of the ejaculate.
(15) Out of the 2550 ejaculates taken from 42 breeding bulls within 12 months, 685, i.e.
(16) Among 124 cases with premature ejaculation, 13 (10%) mild HPRL were found.
(17) On the other hand, the values of the instantaneous frequency, duration, and rhythmicity of the copulatory thrusting movements performed during mounts, intromissions or ejaculations did not differ significantly from the values obtained under saline treatment.
(18) After standardized observation of mating behavior culminating in ejaculation and a sperm plug, females were allowed to produce litters in undisturbed conditions.
(19) The technical strategies to yield higher density of progressively motile sperm were found to be centrifugal concentration of the sperm from whole ejaculate prior to the swimming down, and subsequent re-centrifugation of the separated sperm after the swimming down.
(20) The addition of 19-hydroxy prostaglandin (PG) E to ejaculates positively stimulated sperm motility and sperm penetration capacity.
Semen
Definition:
(n.) The seed of plants.
(n.) The seed or fecundating fluid of male animals; sperm. It is a white or whitish viscid fluid secreted by the testes, characterized by the presence of spermatozoids to which it owes its generative power.
Example Sentences:
(1) A study revealed that the percentage of active sperm in semen 30 seconds after ejaculation was 10.3% when a nonoxynol 9 latex condom was used as opposed to 55.9% in a nonspermicidal condom.
(2) Neither Brucella organisms, nor increased numbers of neutrophils could be found in semen samples collected from the experimental animals.
(3) The use of fresh semen is possible, since results of appropriate cultures could be available and treatment instituted before clinical disease occurs.
(4) The effect of scrotal mange (Chorioptes bovis) on semen quality was assessed in a flock of rams during an outbreak of chorioptic mange and in rams with experimentally induced chorioptic mange.
(5) Ninety semen specimens were analysed for use in an IVF-embryo transfer (ET) programme.
(6) In this study 470 bitches were inseminated; 405 with fresh semen into the cranial vagina and 65 with frozen semen transcervically into the uterus.
(7) The organisms are transmitted transovarially, diaplacentally, via endometrium, before or after implantation, via amnion or by the semen when ascending through the infectious environment.
(8) The total glutathione peroxidase activity was unrelated to studied variables of bull semen.
(9) By contrast, all the semen samples that fertilized oocytes showed a 60% or higher reaction in the hypoosmotic swelling test, whereas the majority of the "infertile" semen samples showed less than 60% swelling.
(10) The same ratio occurred when zinc (0 to 0.6 mM in citrate buffer) was added to semen or washed spermatozoa.
(11) Semen quality was improved in 70 per cent, and 53 per cent of the wives became pregnant.
(12) One hundred and thirty-two penial-preputial swabbings, 140 raw and 42 processed semen samples were cultured for mycoplasmas.
(13) After clinical examination and semen analysis, we studied 4100 patients by scrotal US with sector mechanical (7.5 MHz) probe with water bag and by transrectal US for prostatic vesicular region evaluation with 5-6.5 MHz linear probe (lately we used biplanar probe).
(14) However, in this cohort under study, semen characteristics of AR(+) and AR(-) patients were similar.
(15) More important, 85 per cent of the initial semen samples had greater than 40 per cent abnormal forms and liquefaction was delayed beyond 20 minutes in 67 per cent of specimen.
(16) Monthly measurements of luteinising hormone and testosterone concentration in plasma and testosterone concentration in semen were made over 12 months.
(17) the oestrogen level in semen followed that in the plasma.
(18) In three experiments with semen samples from a single individual capacitated at 4 degrees C for 1, 2 or 3 days in TEST-Yolk buffer we obtained 33, 30 and 34 sperm karyotypes respectively.
(19) The previous demonstration that sperm kept at body temperature (37 degrees C) had a marked deterioration in motility accompanied by an overgrowth of bacteria in the semen and a concomitant decrease in pH led to this study to test the hypothesis that the decrease in motility was caused by the bacteria or by bacterial alteration of seminal pH.
(20) In the first experiment, vaginal slices alone, unglycerolized semen, and vaginal slices plus semen, all in a phosphate-buffered saline were studied.