Because pigs are fatter when they are heat-stressed, it was hypothesized that lipid metabolism is enhanced in heat-stressed pigs. To test this hypothesis, an experiment was conducted to determine the influence of a high ambient temperature on the level of plasma lipids, thyroid hormones, lipoprotein lipase activity, and on the composition of very low density lipoproteins (VLDL) and chylomicrons in the growing pig. Twelve Large White × Landrace castrated male
pigs with an initial weight of 20 ± 0.6 kg were allotted to one of the following treatments: 1) ambient temperature
of 31°C, with ad libitum access to feed or 2) ambient temperature of 20°C and fed the amount consumed by
those kept at 31°C until 35 kg BW. Ambient temperature did not affect piglet performance. Compared to
that in pigs kept at 20°C, in pigs kept at 31°C the lipid
Because pigs are fatter when they are heat-stressed, it was hypothesized that lipid metabolism is enhanced in heat-stressed pigs. To test this hypothesis, an experiment was conducted to determine the influence of a high ambient temperature on the level of plasma lipids, thyroid hormones, lipoprotein lipase activity, and on the composition of very low density lipoproteins (VLDL) and chylomicrons in the growing pig. Twelve Large White × Landrace castrated malepigs with an initial weight of 20 ± 0.6 kg were allotted to one of the following treatments: 1) ambient temperatureof 31°C, with ad libitum access to feed or 2) ambient temperature of 20°C and fed the amount consumed bythose kept at 31°C until 35 kg BW. Ambient temperature did not affect piglet performance. Compared tothat in pigs kept at 20°C, in pigs kept at 31°C the lipid
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