Effect of heat stress on acetate disappearance in goats.
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概要
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Seven goats were used to study the effects of heat exposure (33°C, relative humidity 70%) for 4 days on the disappearance rate of injected acetate. Significant changes in several physiological responses were observed during heat exposure. Intravenous inj ection of acetate (1.25 mmole kg<SUP>-1</SUP> of body weight) caused a marked increase in the peripheral acetate concentration at both 20°C and 33°C. At 20°C, plasma glucose increased and plasma free fatty acids decreased immediately after injection. On the 4th day of heat exposure, plasma glucose changed in a similar manner to that at 20°C, but plasma free fatty acids changed little. The fractional disappearance rate of blood acetate after injection was similar in the two environments. These results suggest that the potency of acetate utilization does not change during heat exposure.
- 日本生物環境工学会の論文
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