A PROPHYLACTIC STUDY OF PARTURIENT PARESIS IN COWS -Effects of dietary cation-anion balance-

点击翻译按钮获取中文摘要

In this study, influences of cation exchange resin (Resin) on acid-base status and mineral concentration of blood were examined in rats, sheep and cattle, as a possible model to prevent parturient paresis in cows.(1) The results in rats indicated that diets containg cation exchange resin induce metabolic acidosis and increase the blood concentration of Ca by causing release Ca from bone.(2) In sheep, the levels of blood pH and plasma HCO_3 apparently decreased, while plasma Cl level increased. However, there were no clinical sighs in the sheep developed metabolic acidosis.(3) The results in cattle was also similar to the resuts observed in sheep.In conclusion, these findings suggested that oral administration of Resin was able to adsorb cations in gastro-enteric fluids enand to regulate cation-anion balances in blood in these animals. Therefore, pertinent selection of ion exchange resin was thought to be utilize as a diet additive to prevent parturient paresis.