INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN

Protonation and deprotonation of ammonia provides a mechanism for movement of the molecule across membranes and they make ammonia an important intermediate in acid-base regulation as well as N metabolism. Only unionized ammonia molecules are able to penetrate the rumen wall proportional to their con...

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Main Authors: RODICA CĂPRIŢĂ, JANA STĂNCULEȚ, D. DRINCEANU, A. CĂPRIŢĂ, I. BENCSIK
Format: Article
Language:English
Published: Agroprint Timisoara 2023-11-01
Series:Scientific Papers Animal Science and Biotechnologies
Subjects:
Online Access:https://spasb.ro/index.php/public_html/article/view/1893
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author RODICA CĂPRIŢĂ
JANA STĂNCULEȚ
D. DRINCEANU
A. CĂPRIŢĂ
I. BENCSIK
author_facet RODICA CĂPRIŢĂ
JANA STĂNCULEȚ
D. DRINCEANU
A. CĂPRIŢĂ
I. BENCSIK
author_sort RODICA CĂPRIŢĂ
collection DOAJ
description Protonation and deprotonation of ammonia provides a mechanism for movement of the molecule across membranes and they make ammonia an important intermediate in acid-base regulation as well as N metabolism. Only unionized ammonia molecules are able to penetrate the rumen wall proportional to their concentration. Rising pH dramatically increases the percentage of unionized ammonia. The ratio of the ammonium ion, NH4 + , to ammonia, NH3 is inversely related to pH. The study had in view to establish the content of free and ionized ammonia in the rumen fluid under the influence of nutritional factors (slow release urea, sugar, live yeasts and premix) in five periods. Each increase in pH by 0.5 units further increases free ammonia percentage by the average factor of 3.27. The decrease in pH with 0.5 units from 6.8 to 6.3 induces an increase in the NH4 + proportion from 99.0% to 99.7% while the decrease in pH with 0.5 units from 6.3 to 5.8 induces an increase in NH4 + proportion from 99.7% to 99.9%.
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spelling doaj.art-af3f725b13614bd29cd1843875b955d12024-04-04T07:47:43ZengAgroprint TimisoaraScientific Papers Animal Science and Biotechnologies1841-93642344-45762023-11-014117537531893INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMENRODICA CĂPRIŢĂ0JANA STĂNCULEȚ1D. DRINCEANU2A. CĂPRIŢĂ3I. BENCSIK4Faculty of Animal Sciences and Biotechnologies Timişoara, Romania Faculty of Animal Sciences and Biotechnologies Timişoara, Romania Faculty of Animal Sciences and Biotechnologies Timişoara, Romania Faculty of Food Technology Timişoara, Romania Faculty of Animal Sciences and Biotechnologies Timişoara, Romania Protonation and deprotonation of ammonia provides a mechanism for movement of the molecule across membranes and they make ammonia an important intermediate in acid-base regulation as well as N metabolism. Only unionized ammonia molecules are able to penetrate the rumen wall proportional to their concentration. Rising pH dramatically increases the percentage of unionized ammonia. The ratio of the ammonium ion, NH4 + , to ammonia, NH3 is inversely related to pH. The study had in view to establish the content of free and ionized ammonia in the rumen fluid under the influence of nutritional factors (slow release urea, sugar, live yeasts and premix) in five periods. Each increase in pH by 0.5 units further increases free ammonia percentage by the average factor of 3.27. The decrease in pH with 0.5 units from 6.8 to 6.3 induces an increase in the NH4 + proportion from 99.0% to 99.7% while the decrease in pH with 0.5 units from 6.3 to 5.8 induces an increase in NH4 + proportion from 99.7% to 99.9%.https://spasb.ro/index.php/public_html/article/view/1893free ammoniaionized ammoniaph
spellingShingle RODICA CĂPRIŢĂ
JANA STĂNCULEȚ
D. DRINCEANU
A. CĂPRIŢĂ
I. BENCSIK
INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
Scientific Papers Animal Science and Biotechnologies
free ammonia
ionized ammonia
ph
title INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
title_full INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
title_fullStr INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
title_full_unstemmed INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
title_short INFLUENCE OF PH ON THE PROPORTION OF UNIONIZED AMMONIA IN RUMEN
title_sort influence of ph on the proportion of unionized ammonia in rumen
topic free ammonia
ionized ammonia
ph
url https://spasb.ro/index.php/public_html/article/view/1893
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