Ammonia Excretion, Amino-acid Excretion and the Alkaline Tide in Singapore

The alkaline tide and ammonia excretion after voluntary feeding in freshwater rainbow trout.

We investigated the potential acid-base and nitrogenous waste excretion challenges created by voluntary feeding in freshwater rainbow trout, with particular focus on the possible occurrence of an alkaline tide (a metabolic alkalosis created by gastric HCl secretion during digestion). Plasma metabolites (glucose, urea and ammonia) were measured at various time points before and after voluntary f...

Amino acid excretion in primary hyperuricaemia.

Renal ammonia and acid excretion in infant rats.

GOLDSTEIN, LEON. Renal ammonia and acid excretion in infant rats. Am. J Physiol. 218(5) : 1394-l 398. 1970.-The rate of ammonia excretion in infant rats (9-14 days old) was approximately two-thirds the adult level. Excretion of titratable acid (TA) was approximately one-third that of adult rats until 14 days after birth. Between 14 and 21 days after birth, the rates of excretion of ammonia and ...

Vitamin D and urinary amino acid excretion in the rabbit.

There is ample evidence that vitamin D deficiency rickets in man is associated with hyperaminoaciduria (1). Further studies (2) on renal clearance have de monstrated that elevated urinary amino acid excretion results from diminished reabsorption of it by the renal tubular cells. Many attempts (3, 4), however, failed to find aminoaciduria in experimental rachitic animals until GROSE and SCRIBER ...

Ammonia excretion in the Atlantic hagfish

32 33 Hagfishes are the most ancient of the extant craniates, and demonstrate a 34 high tolerance for a number of unfavorable environmental conditions including 35 elevated ammonia. Proposed mechanisms of ammonia excretion in aquatic 36 organisms include vesicular NH4+ transport and release by exocytosis in marine 37 crabs, and passive NH3 diffusion, active NH4+ transport and paracellular leaka...