1. The relationship of changes in plasma renin and plasma aldosterone concentration to electrolyte balance was studied during total fasting and during sodium deprivation followed by total fasting. 2. During simple sodium deprivation obese subjects lost significantly more sodium than lean subjects, but the rise in plasma renin concentration (PRC) was similar in the two groups. 3. During total fa...

The importance of vitamin Bs in water metabolism has been studied extensively. Stebbins (1) demonstrated an impaired water metabolism in animals deprived of vitamin Be. Lepkovsky and colleagues (2) suggested that derangement of water metabolism may be involved in the occurrence of fits in vitamin B&-deficient rats. Guggenheim (3) observed that rats in a state of vitamin Be deficiency show a del...

this study was conducted to evaluate the effect of different levels of electrolyte dietary balance (deb) on performance and immune function of broiler chickens reared under the heat stress condition. three hundred oneday chickens were distributed randomly in 25 separate pens with 12 chicks in each. this experiment was in the form of a completely randomized design with five treatments and five r...

An experiment involving 289 farrowings during a 2-yr period was conducted to determine the effect of increasing dietary nutrient concentration, electrolyte balance, and season of the year on the lactational performance of sows. Experimental diets were corn-soybean meal-based. The basal diet was formulated to meet or exceed the NRC requirements and the high-nutrient diet was formulated to contai...

BACKGROUND Magnesium (Mg(2+)) is an essential electrolyte with important physiological functions. Consequently, hypomagnesaemia, an electrolyte disorder frequently diagnosed in critically ill patients, can have life-threatening consequences. The kidney plays a central role in the regulation of the Mg(2+) balance. The present study investigated the molecular consequences of dietary Mg(2+) restri...

The renin-angiotensin-aldosterone system (RAAS) appears to contribute significantly to osmoregulation of fasting northern elephant seal (Mirounga angustirostris) pups; however, RAAS has not been characterized in fasting adult seals. Therefore, this study examined the contribution of RAAS to water turnover rates in fasting adult male northern elephant seals. Blood samples were obtained twice dur...