Effect of glucose on fermentation heat in sheep rumen fluid in vitro
Keyword(s):
1. Heat production rate (H) of rumen fluid was measured in a direct calorimeter, Basal H of samples of 15 ml rumen fluid mixed with 45 ml buffer was 0.4 mW/ml rumen fluid.2. Addition of glucose (0.4–6.4 mg/sample) was followed by a dose-dependent increase in H. Maximal H was 1.1 rnW/ml and lasted up to 5 min, returning thereafter to the basal level.3. Expression of fermentation heat (Hf; kJ/mol substrate added) against glucose dose indicated an asymptotic dose response.4. Maximal Hf(at infinite dilution) agreed with stoichiometric calculations whereas minimal Hfsuggested a partial fermentation of the substrate at a high-glucose dose in the rumen environment.
1988 ◽
Vol 71
(4)
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pp. 964-970
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1980 ◽
Vol 239
(3)
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pp. G198-G203
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1995 ◽
Vol 1995
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pp. 110-110
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2010 ◽
Vol 42
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pp. 68-69
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1972 ◽
Vol 50
(6)
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pp. 476-484
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1991 ◽
Vol 260
(2)
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pp. E292-E305