Effect of dietary cation-anion balance on urinary mineral excretion in exercised horses

Wall, D.L.; Topliff, D.R.; Freeman, D.W.; Wagner, D. G.; Breazile, J.W.; Stutz, W.A.

doi:10.1016/s0737-0806(06)81475-9

Cited by 20 publications

(7 citation statements)

References 4 publications

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“…It has been suggested that acidifying diets can result in the mobilisation of calcium from the bone in exercising horses [54]. Although in the present study there was no apparent effect of the NaCl supplementation and subsequent acidosis on the fractional renal excretion of calcium and magnesium, there was an effect of both doses of NaCl on estimated renal calcium excretion (Fig 2).…”

Section: Discussioncontrasting

confidence: 54%

Effects of Different Oral Doses of Sodium Chloride on the Basal Acid-Base and Mineral Status of Exercising Horses Fed Low Amounts of Hay

et al. 2017

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The provision of NaCl, according to current recommendations, to horses in moderate work has been shown to induce immediate postprandial acidosis. The present study aimed to clarify whether this NaCl induced acidosis i) persists beyond the immediate postprandial period, and ii) is still present after a 2 week adaptation period. Six adult warmblood mares in moderate work received daily 1.00 kg hay per 100 kg body weight (bwt) only together with 0.64 kg unprocessed cereal grains/100 kg bwt.d as fed basis. Using a 3x3 Latin Square, either 0 (NaCl-0), 50 (NaCl-50) or 100 (NaCl-100) g NaCl/d were fed together with the concentrates in two equal doses for 3 weeks. During the final week, a mineral digestibility trial was undertaken. The middle sodium and chloride intake (NaCl-50) at least met the most common recommendations for moderate work. Morning (7:00 AM) urine and venous blood samples were collected on days 0, 1–4, 8, and 15, and analysed for pH, acid-base status, creatinine and electrolyte concentrations. Fractional electrolyte clearances (FC) were determined. Mean apparent sodium digestibility ranged between 60–62% whereas chloride digestibility was consistently above 94%. Supplementing 100 g but not 50 g of NaCl resulted in significant reduction of blood pH and base excess as well as urinary pH and urine acid excretion. Both 50 g and 100 g NaCl supplementation caused a significant reduction in base and net acid-base excretion, urine density and potassium concentration, but increased urine sodium concentration and the FC of sodium and chloride (P < 0.05). This suggests that a high proportion of the recommended salt doses is excreted renally. The above effects of NaCl supplementation persisted over the 2 week measurement period. Results suggest that feeding 100 g NaCl to moderately exercising horses results in mild metabolic acidosis, whereas feeding 50 g according to current recommendations resulted in compensated acidosis.

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Section: Discussioncontrasting

confidence: 54%

Effects of Different Oral Doses of Sodium Chloride on the Basal Acid-Base and Mineral Status of Exercising Horses Fed Low Amounts of Hay

et al. 2017

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“…Acidosis may also result in increased excretion of Ca. Wall et al (1992) observed a decrease of blood pH at rest in horses fed low DCAB diets ( 5 mequiv/kg) as well as excretion of more Ca and C1 than in horses fed diets with a DCAB of 201 or 327. Feeding high CHO diets was suspected to cause a decrease in pH and an increased urinary excretion of Ca and P (Ralston, 1994).…”

Section: W a T E R A N D E L E C T R O L Y T E Smentioning

confidence: 80%

A Review of Recent Research on Nutrition and Metabolism in the Athletic Horse

Hiney

Potter

1996

Nutr. Res. Rev.

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“…The effect of treatment over time on urine pH is shown in Table III Topliff et al 1989, Wall et al 1992and Baker et al 1993 which demonstrated an increase in daily urinary excretion of chloride in horses consuming a lower DCAB.…”

Section: Urine Phmentioning

confidence: 99%

“…The effect of DCAB on calcium excretion in the urine is shown in Table V (Topliff et al, 1989;Wall et al, 1992;and Baker et al, 1993), dairy cattle (Tucker et al, 1988) and rabbits (Thacker, 1959) .…”

Section: Urinary Calcium Excretionmentioning

confidence: 99%

Effects of dietary cation-anion balance on acid base balance and blood parameters in anaerobically exercised horses

Popplewell¹,

Topliff²,

Freeman³

et al. 1993

Journal of Equine Veterinary Science

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Effect of dietary cation-anion balance on urinary mineral excretion in exercised horses

Cited by 20 publications

References 4 publications

Effects of Different Oral Doses of Sodium Chloride on the Basal Acid-Base and Mineral Status of Exercising Horses Fed Low Amounts of Hay

Effects of Different Oral Doses of Sodium Chloride on the Basal Acid-Base and Mineral Status of Exercising Horses Fed Low Amounts of Hay

A Review of Recent Research on Nutrition and Metabolism in the Athletic Horse

Effects of dietary cation-anion balance on acid base balance and blood parameters in anaerobically exercised horses

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