Twenty-four mature, nonpregnant crossbred cows were used in a 42-d feeding study to evaluate the effects of dietary cation-anion difference (DCAD) on performance, dry matter intake, and pH of blood, urine, and uterine flushing. All cows were housed individually and provided free-choice access to bahiagrass hay and a corncottonseed meal supplement. Two treatments were randomly allocated to cows ...

background and objectives: analytical methods for volatile organic compounds (vocs) in different samples need extraction of compounds, by applying hazardous solvents. solid phase micro-extraction (spme) is a solvent-free equilibrium extraction method, in which proper calibration can allow quantitative determinations of vocs at a very good sensitivity without the use of any organic solvent. vocs...

Studies were performed on normal human subjects to determine the effects of potassium depletion on urine acidification. Depletion was induced by ingestion of a low potassium diet either alone or in combination with a potassium-binding resin, and the response of each subject to an acute ammonium chloride load in the potassium-depleted state was compared to his normal response. Urine pH was signi...

The influence of feeds containing varying dietary cation-anion differences (DCADs) with and without supplements of 25-hydroxyvitamin D (25(OH)D) on urine pH and excretion of macro minerals was determined in fistulated crossbred steers (mean live weight 315 ± 45 kg). A basal forage diet comprising lucerne hay and wheat chaff was used, to which varying quantities of MgCl(2) or K(2)CO(3) were adde...

introduction: water is an essential nutrient for life. it comprises 75% of total body weight in infants,60% in adult males and 50% in adult females. decrease in body water is commonly known as dehydration. acute or chronic dehydration is a common condition in some population groups, especialy the elderly and those who participate in physical activity in warm enviroments. potential consequences ...

This study was designed to investigate the pathogenesis of type I (distal) renal tubular acidosis. Urinary and blood Pco(2) tensions were determined when the pH of the urine was equal to or exceeded the corresponding blood pH. This provided an indication of net hydrogen ion secretion in the distal nephron. In 16 normal subjects, the Pco(2) of the urine exceeded blood values (U-B Pco(2)) by 32.7...

Background and Purpose: The presence of Candida yeasts in urine, known as candiduria, is an indicator of infection or colonization of the urinary tract by Candida species. This condition in diabetic patients can be hazardous due to diminished immune system response. The objective of this study was to investigate the incidence of candiduria in diabetic patients and to identify its causative agen...

Mycobacterial pathogens can be excreted in human urine by some infected individuals. High numbers of pathogenic mycobacteria in the urine could represent a new transmission route for mycobacterial infections if the urine is used for crop fertilization. In this study, the survival of spiked Mycobacterium aurum and M. fortuitum as fast-growing mycobacteria and M. avium and M. bovis as slow-growin...

BACKGROUND The effect of the fluoride in the caries prevention is strongly linked to its topical action. When the fluoride is ingested, its anticaries effect is weak and, in addition, it can cause side effects such as dental fluorosis in children. The toothbrushing with fluoride dentifrice is a suitable procedure to provide the topical fluoride, but in small children there is risk of inadverten...

The concept of an increased formation and excretion of acids in pneumonia seems to have first found experimental justification in the work of Palmer and Henderson (l), who found that the administrat,ion of 4 gm. of sodium bicarbonate did not appreciably change the reaction of the urine of a patient with pneumonia. In normal individuals this amount of bicarbonate produced a change in reaction of...