Electrolyte Balance in Exercising Horses Fed a Control and a Fat-Supplemented Diet

摘要: Summary Eight mature Thoroughbred horses were used in a replicated 4 x Latin square experiment to verify the results of previous study conducted this laboratory which estimated dietary electrolyte requirements for exercising Miniature Horses, and evaluate effect feeding fat on balance. The rations contained concentrations electrolytes as suggested from study. Horses exercised at two work loads that increased digestible energy approximately 145% 180% maintenance, fed control diet fat-supplemented diet. Each period was 3 weeks. Mineral balance trials during last days each period. During trials, housed metabolism crates, except while exercising, total urine fecal collections. Sweat loss quantified sweat samples collected. Feed, water, fecal, urine, determine balances supplemented according predicted needs. losses averaged 11.9 g/kg BW lowest load 15.6 highest load. There no significant differences composition due or Furthermore, there near when sodium, potassium chloride laboratory. Thus, maintain balance, diets should contain (per Mcal DE) 1.3 g 3.1 4.5 potassium.