Corpus ID: 30585201

Constituents of Bull Seminal Plasma

  title={Constituents of Bull Seminal Plasma},
  author={Lord Rothschild and Harold Barnes},
  journal={The Journal of Experimental Biology},
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… Expand

Figures and Tables from this paper

Distribution of Bulk and Trace Minerals in Bull Reproductive Tract Fluids and Semen
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 alsoExpand
Studies of the distribution of the major cations in semen and male accessory secretions.
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. Expand
Sodium, Potassium, Calcium, and Chloride Distribution in Bovine Semen
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.Expand
Major cations in the semen of Angoni (short-horn Zebu) bulls.
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. Expand
Seminal plasma effects on bovine endometrial respiration.
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. Expand
Untersuchungen zur Osmolalität des menschlichen Seminalplasmas
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 310–395Expand
Fertility‐associated metabolites in bull seminal plasma and blood serum: 1H nuclear magnetic resonance analysis
The fertility‐associated metabolites with variable importance in projections (VIP) scores >2 were citrate, tryptamine/taurine, isoleucine, asparagine, and citrulline, which can be used as biomarkers of fertility in breeding bulls. Expand
Anaerobic heat production of bull spermatozoa II. The effects of changes in the colligative and other properties of the suspending medium
  • M. Rothschild
  • Chemistry
  • Proceedings of the Royal Society of London. Series B. Biological Sciences
  • 1959
1. The anaerobic heat production of bull spermatozoa has been examined under varying environmental conditions, in an isothermal calorimeter, capacity 2·4 ml., working at atmospheric pressure. TheExpand
Anaerobic heat ' production of bull spermatozoa 317
A micro-calorimeter, suitable for detecting rates of heat production of the order of 1 mcal/h in about 2*3 ml. fluid, is described. Measurements have been made with it of the anaerobic heatExpand
Characterization of adiponectin concentrations and molecular weight forms in serum, seminal plasma, and ovarian follicular fluid from cattle.
This study evaluated seminal plasma from breeding bulls and follicular fluid from heifers and collected blood samples from these animals, providing both the AdipoQ concentration and the MW patterns for bovine body fluids related to reproduction. Expand


Osmotic Pressure of Bull Semen Diluents
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. Expand
Studies on the Biochemistry of Human Semen.:Some Properties of Prostatic Phosphatase.
  • F. Lundquist
  • Chemistry, Medicine
  • Acta 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. Expand
The effects of potassium and calcium salts on the motility of ram, rabbit and bull spermatozoa
  • A. Blackshaw
  • Chemistry, Medicine
  • The 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. Expand
The chemical composition of the pre-sperm fraction of bull ejaculate obtained by electrical stimulation
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 ofExpand
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). Expand
The Micro-Estimation of Sodium, Potassium, Calcium, Magnesium, Chloride, and Sulphate in Sea Water and the Body Fluids of Marine Animals
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,Expand
Semen Diluents in the Artificial Insemination of Cattle
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. Expand
The Inorganic Constituents of the Sea-Urchin Egg
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. Expand
Alterations in Specific Gravity during the Ripening of Bull Spermatozoa
Summary Determinations of the specific density of spermatozoa in ejaculates collected from normal dairy bulls in regular service were performed by centrifugation in umbradil-methylglucamine-saltExpand
Studies on the alkali metal requirements of ram and bull spermatozoa.
  • I. White
  • Chemistry, Medicine
  • Australian 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 wereExpand