Constituents of Bull Seminal Plasma
@article{Rothschild1954ConstituentsOB, title={Constituents of Bull Seminal Plasma}, author={Lord Rothschild and Harold Barnes}, journal={The Journal of Experimental Biology}, year={1954}, volume={31}, pages={561-572} }
1. The concentrations of the main inorganic and certain organic constituents of bull seminal plasma have been examined. The average concentrations, in mg./100 ml., were: Sodium 258 Chloride 175 Potassium 172 Citrate 620 Calcium 37 Fructose 460 Magnesium 8 Total N 877 Iron 2 Total P 57 2. Sodium and potassium were found to be inversely correlated, r= -0.86, p 3. Calcium, chloride, fructose, citrate and total nitrogen were also strongly correlated (p 4. Sodium, potassium and chloride were…
27 Citations
Distribution of Bulk and Trace Minerals in Bull Reproductive Tract Fluids and Semen
- Chemistry
- 1958
Summary Semen and seminal plasma and fluids from the testes, ampullae, and seminal vesicles have been analyzed for the concentrations of certain bulk and trace elements. Chloride concentrations also…
CONTENT, SPECIFIC GRAVITY AND CONCENTRATIONS OF ELECTROLYTES
- Chemistry, Biology
- 2008
The water content of epididymal bull spermatozoa in media of osmolalities corresponding to those of seminal plasma and to the fluids from the cauda epididymidis was determined by a…
Studies of the distribution of the major cations in semen and male accessory secretions.
- BiologyJournal of reproduction and fertility
- 1965
The high potassium and low sodium concentration of the spermatozoa, coupled with a low potassium and high sodium concentration in the seminal plasma, suggest the operation of a sodium pump mechanism in spermatozosa similar to that postulated for erythrocytes.
Water content, specific gravity and concentrations of electrolytes in bull spermatozoa.
- BiologyJournal of reproduction and fertility
- 1972
Determinations of the water-content of the spermatozoa furnished data from which it was possible to calculate the specific gravity of the cells and the calculated osmolality of the cytosol was found to be about 40 mosmol less than that of the epididymal fluids.
Composition of bull epididymal and testicular fluid.
- BiologyJournal of reproduction and fertility
- 1966
There was a decrease in sodium and chloride as the fluid passed from the testis through the epididymis and at the same time there was a general increase in organic constituents.
Sodium, Potassium, Calcium, and Chloride Distribution in Bovine Semen
- Chemistry
- 1958
Summary Potassium is more concentrated within the sperm cells of bovine semen than in seminal plasma. Sodium and calcium are more concentrated in the seminal plasma than within the sperm cells.…
Major cations in the semen of Angoni (short-horn Zebu) bulls.
- Biology, MedicineJournal of reproduction and fertility
- 1971
Sodium and potassium concentrations in semen, seminal plasma and the pre-ejaculate fraction collected from ten Angoni bulls four times a week for 6 weeks were analysed for sodium (Na+) and potassium (K+) concentrations using a flame photometer and for calcium and magnesium using an atomic absorption spectrophotometer.
Seminal plasma effects on bovine endometrial respiration.
- Medicine, BiologyJournal of reproduction and fertility
- 1972
It was shown that the degree of respiratory depression is related to the dry weight of non-dialysable seminal plasma, and calcium does not appear to be tightly bound to the non- dialysable material and its removal does not alter the depressant action.
Seminal vesiculectomy in bulls. I. Seminal biochemistry.
- MedicineJournal of reproduction and fertility
- 1968
The findings indicate that the vesicular glands contribute to the pre-sperm fraction and more significantly to the sperm-rich portion of the ejaculate, which clarifies the biochemical contributions of the seminal vesicles to the ejaculates.
Untersuchungen zur Osmolalität des menschlichen Seminalplasmas
- ArtArchiv für dermatologische Forschung
- 2004
SummaryOsmolality of human seminal plasma was analyzed by determination of freezing-point-depression. Applying this method to the study of 120 cases osmolality was found within the range of 310–395…
28 References
Osmotic Pressure of Bull Semen Diluents
- Chemistry, MedicineNature
- 1954
The freezing point depressions of these diluents, of certain others, and of bull seminal plasma were measured by Ramsay's micro-method3, and the results are given in Table 1.
Studies on the Biochemistry of Human Semen.:Some Properties of Prostatic Phosphatase.
- BiologyActa physiologica Scandinavica
- 1947
Citrate to some extent abolishes this inhibition, and furthermore increases the reaction velocity of glycerophosphate and, especially, phosphoryl choline hydrolysis, also when prostatic secretion or seminal plasma is used without added inhibitor.
The effects of potassium and calcium salts on the motility of ram, rabbit and bull spermatozoa
- BiologyThe Journal of physiology
- 1953
A study has been made of the effects of these ions, alone and in combination, on the motility of ram, bull and rabbit spermatozoa.
The chemical composition of the pre-sperm fraction of bull ejaculate obtained by electrical stimulation
- ChemistryThe Journal of Agricultural Science
- 1953
1. Semen was collected from bulls by means of the electro-ejaculation method developed by Thibault et al. (1948). 2. A copious sperm-free fraction of the ejaculate, produced in the early phase of…
A COLORIMETRIC METHOD FOR THE DETERMINATION OF FRUCTOSE IN BLOOD AND URINE
- Chemistry
- 1934
The method makes use of the blue color produced when fructose is dehydrated with HCl in the presence of diphenylamine, a reaction first observed by Ihl and Pechmann (4).
The Micro-Estimation of Sodium, Potassium, Calcium, Magnesium, Chloride, and Sulphate in Sea Water and the Body Fluids of Marine Animals
- Chemistry
- 1939
Methods are presented for the estimation of sodium, potassium, calcium, magnesium, chloride and sulphate in sea water and in other solutions, such as the blood and body fluids of marine animals,…
Semen Diluents in the Artificial Insemination of Cattle
- Chemistry, MedicineNature
- 1954
No systematic examination of the effects of different diluents, with and without the addition of bactericidal or bacteriostatic substances, on the fertilizing capacity of bull semen has been made in the United Kingdom, and the American experiments have been on a comparatively small scale, which obviated the possibility of a comprehensive investigation.
The Inorganic Constituents of the Sea-Urchin Egg
- Environmental Science
- 1953
The principal inorganic constituents of the unfertilized egg of Paracentrotus lividus have been analysed by chemical methods and the total phosphorus content of the eggs was about 2 mg./ml.
Alterations in Specific Gravity during the Ripening of Bull Spermatozoa
- Biology
- 1952
Determinations of the specific density of spermatozoa in ejaculates collected from normal dairy bulls in regular service were performed by centrifugation in umbradil-methylglucamine-salt solutions of different specific gravities, indicating a lower specific gravity in these than in ripe and over-ripe ones.
Studies on the alkali metal requirements of ram and bull spermatozoa.
- Chemistry, MedicineAustralian journal of biological sciences
- 1953
Rubidium was as effective as potassium in maintaining the motility of ram and bull spermatozoa washed four times in a sodium phosphate-fructose diluent. Caesium was less active, ammonium ions were…