These tools will no longer be maintained as of December 31, 2024. Archived website can be found here. PubMed4Hh GitHub repository can be found here. Contact NLM Customer Service if you have questions.


Pubmed for Handhelds

PUBMED FOR HANDHELDS

Search MEDLINE/PubMed

  • Title: Renal urea handling in goats fed high and low protein diets.
    Author: Eriksson L, Valtonen M.
    Journal: J Dairy Sci; 1982 Mar; 65(3):385-9. PubMed ID: 7076960.
    Abstract:
    Four female goats first were fed a high protein diet and later a low protein diet. Renal urea handling was studied during feeding of both diets. Glomerular filtration rate was measured with [hydroxymethyl-carbon-14] inulin. Glomerular filtration rate dropped about 60% when nitrogen intake was restricted. Urea concentration of plasma fell from 6 mM on high protein diet to .6mM on low protein diet. On low protein diet the rate of urea filtration at the glomeruli was only 4% of that on high protein diet, 22 versus 519 mumol/min. In addition, tubular urea reabsorption in percentage of filtered urea rose up to 92% on low protein diet. As a result of all these renal changes following dietary nitrogen restriction, urinary urea excretion was only .6% of urinary urea excretion on high protein diet. In goats as in other ruminants, renal mechanisms effectively contribute to urea conservation during protein deprivation.
    [Abstract] [Full Text] [Related] [New Search]