The ways animals lose water include（）
A. Excretion of feces
B. Perspiration
C. Respiration
D. Excretion through the product
Excretion of urine
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The physiological functions of water include（）
A. Forms the body
B. As a solvent
C. Maintains osmotic pressure
D. Body temperature regulation
E. Lubrication
Apparent metabolizable energy（AME）is the remaining energy after subtracting（）from the gross energy
A. Fecal energy
B. Urine energy
C. Metabolizable fecal energy
D. Gas energy
Endogenous urine energy
Nitrogen-corrected metabolic energy（MEn）is often used in（）
A. Pig
B. Poultry
C. Ruminant
D. Aquatic animal
（）is characterized by water loss, while electrolyte loss is relatively small
A. Hypertonic dehydration
B. Hypotonic dehydration
C. Isotonic dehydration
D. General dehydration
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