Evaluation of cation-anion diets in calcium metabolism in ruminants

The objective of this study was to evaluate the use of the dietary cation-anion balance (DCAB) on the calcium metabolism in male Nellore steers with a mean age of 10 months. Three experimental diets were tested: a cationic diet, a diet consisting of Tifton hay only, and an anionic diet with +15.2, +23.9 and −10.0 mEq/100 g DM of DCAB values in the diet. The anionic diet was calculated as the addition of salts of ammonium chloride and magnesium sulfate. Based on the isotope dilution technique, the negative DCAB value used in this study (−10.0 mEq/100 g DM) does not affect calcium metabolism, especially endogenous losses and true absorption.

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Bibliographic Details
Main Authors: Oliveira,Ana Alix Mendes de Almeida, Vitti,Dorinha Miriam Silber Schmidt, Oliveira,Simone Raymundo de, Costa,Patrícia Barcellos, Neres,Marcela Abbado, Hermes,Paula Regina, Cavilhão,Cristiani, Konieczniak,Paula
Format: Digital revista
Language:English
Published: Sociedade Brasileira de Zootecnia 2014
Online Access:http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982014001100601
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Summary:The objective of this study was to evaluate the use of the dietary cation-anion balance (DCAB) on the calcium metabolism in male Nellore steers with a mean age of 10 months. Three experimental diets were tested: a cationic diet, a diet consisting of Tifton hay only, and an anionic diet with +15.2, +23.9 and −10.0 mEq/100 g DM of DCAB values in the diet. The anionic diet was calculated as the addition of salts of ammonium chloride and magnesium sulfate. Based on the isotope dilution technique, the negative DCAB value used in this study (−10.0 mEq/100 g DM) does not affect calcium metabolism, especially endogenous losses and true absorption.