THE EFFECTS OF WITHHOLDING FEED AND WATER ON SELECTIVE BLOOD METABOLITES IN MARKET-WEIGHT BEEF STEERS

A. L. Schaefer, S. D. M. Jones, A. K. W. TONG, Patricia Lepage, N. L. Murray

Canadian Journal of Animal Science · 1990 · 18 citations · 3 references

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Abstract

Eighty crossbred beef steers weighing an average of 493.4 ± 3.2 kg were allocated to five treatment groups of 0, 12, 24, 36 or 48 h off feed and water in order to examine the effects on selective blood metabolites. Progressive increases (P = 0.01) were observed in serum chloride, red blood cells, hemoglobin and hematocrit simultaneously with reductions in serum glucose and, by implication, plasma volume. Changes were most noticeable between 24 and 36 h off feed and water. Key words: Cattle, fasting, metabolites, carcass

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