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Behaviour influences cholesterol plasma levels in a pig model

  • W. M. Rauw (a1), O. Portolés (a2), D. Corella (a2), J. Soler (a3), J. Reixach (a4), J. Tibau (a3), J. M. Prat (a5), I. Diaz (a6) and L. Gómez-Raya (a1)...

Abstract

Little is known about the relationship between feed intake behaviour and cholesterol levels in humans. This can be attributed to the fact that feed intake behaviour in humans is difficult to assess. The relationships between feed intake, feed efficiency and feed intake behaviour, and cholesterol and triglyceride levels were investigated at an average age of 187 days, in a pig model consisting of 202 Duroc barrows. Feed intake and feed intake behaviour were recorded individually and daily by means of an electronic identification system. Animals with high levels of total cholesterol also had high levels of high-density lipoprotein (HDL), low-density lipoprotein (LDL) cholesterol and triglycerides. Animals with high levels of HDL also had high levels of LDL and triglycerides, and animals with high levels of LDL also had high levels of triglycerides. Animals with higher BW, higher backfat thickness, higher BW gain, higher gain of backfat deposition, higher feed intake, higher residual feed intake (RFI) and higher feed intake rate had higher levels of total, HDL and LDL plasma cholesterol. Results indicate that the relationship between feed intake and cholesterol levels is a long-term relationship, while the relationship between RFI and cholesterol levels is more of a short-term nature. The relationship between intake rate and cholesterol plasma levels disappeared after correction for the amount of feed consumed. Results indicate that feed intake independent of metabolic BW, growth and fatness, i.e. ‘RFI’, was positively correlated with cholesterol plasma levels. This suggests that eating food over and above the maintenance and growth requirements constitutes a health risk independent of the level of fatness.

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References

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Keywords

Behaviour influences cholesterol plasma levels in a pig model

  • W. M. Rauw (a1), O. Portolés (a2), D. Corella (a2), J. Soler (a3), J. Reixach (a4), J. Tibau (a3), J. M. Prat (a5), I. Diaz (a6) and L. Gómez-Raya (a1)...

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