Effect of Cation-Anion Difference on Measures of Acid-Base Physiology and Performance in Beef Cattle
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چکیده
In Florida, the dietary cation-anion balance (DCAD) characteristic of bahiagrass (Paspalum notatum) can be highly variable. This is a result of fluctuations in all four elements making up the core DCAD equation, Na, K, Cl, and S. Bahiagrass receiving annual contributions of S from ammonium sulfate fertilizer can accumulate high levels of S. In a previous study (Arthington et al. 2002), bahiagrass fertilized with ammonium sulfate (60.0 lb S/acre) contained an average of 0.50% S (DM basis). Although cow acid-base physiology was not measured, the high-S content of the ammonium sulfate fertilized pastures resulted in a decline in Cu accumulation in cows grazing these pastures. The ability of high-S content bahiagrass to alter Cu status suggests additional important metabolic responses may be occurring in cows.
منابع مشابه
Effect of dietary cation-anion difference on measures of acid-base physiology and performance in beef cattle.
Dietary constituents can affect cow acid-base physiology and uterine pH. Dietary cation-anion difference (DCAD) has been shown to affect cow acid-base physiology, but the effect on uterine pH has not been demonstrated. The objective of this work was to determine if DCAD [(Na + K + 0.15Ca + 0.15Mg) - (Cl + 0.60S + 0.50P)] could affect cow DMI, acid-base physiology, and uterine pH, and second, to...
متن کاملEnfluence of increasing dietary cation-anion balance on the performance of lactating dairy cattle
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Effect of Cation-Anion Difference on Measures of Acid-Base Physiology in Beef Cows1
Twenty-four mature, nonpregnant crossbred cows were used in a 42-d feeding study to evaluate the effects of dietary cation-anion difference (DCAD) on performance, dry matter intake, and pH of blood, urine, and uterine flushing. All cows were housed individually and provided free-choice access to bahiagrass hay and a corncottonseed meal supplement. Two treatments were randomly allocated to cows ...
متن کاملEffect of decreasing dietary cation anion difference on feedlot performance, carcass characteristics, and beef tenderness.
The manipulation of acid-base balance has been extensively investigated as a means of manipulating Ca homeostasis and managing milk fever in dairy cows. A low dietary cation anion difference (DCAD) increases urinary Ca, blood-ionized Ca, and responsiveness to Ca-homeostatic hormones. Very little attention has been focused on the possibility of using a low dietary DCAD to increase muscle Ca avai...
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