Interactions between medium-chain and long-chain triacylglycerols in lipid and energy metabolism in growing chicks

Abstract

The combined effects of dietary medium-chain triacylglycerols (MCT) and long-chain triacylglycerols (LCT) on lipid and energy utilization in chicks were investigated. Corn oil was used as the LCT source, and trioctanoin (8∶0) was used as the MCT source. The efficiency of dietary energy utilization (such as metabolizable energy values and fat and energy retention) decreased linearly as the level of MCT increased, but the efficiency of dietary protein utilization (protein retained per protein consumed) was not affected in a consistent manner. Fecal saturated and monounsaturated fatty acid composition was dependent on the dietary fatty acid composition, whereas fecal linoleic acid content was not. It is concluded that dietary MCT and LCT influence each other to some degree, with respect to protein and lipid metabolism in chicks. Moreover, in most cases, the nutritional characteristics of each triacylglycerol, including food efficiency and fat and energy retention, are independent of each other in growing chicks.

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Abbreviations

CCK:

cholecystokinin

LCFA:

long-chain fatty acid(s)

LCT:

long-chain triacylglycerol(s)

MCFA:

medium-chain fatty acid(s)

MCT:

medium-chain triacylglycerol(s)

ME:

metabolizable energy

NE:

net energy

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Correspondence to Mitsuhiro Furuse.

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Mabayo, R.T., Furuse, M., Murai, A. et al. Interactions between medium-chain and long-chain triacylglycerols in lipid and energy metabolism in growing chicks. Lipids 29, 139–144 (1994). https://doi.org/10.1007/BF02537153

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Keywords

  • Linoleic Acid
  • Bile Acid
  • Versus Versus Versus Versus
  • Versus Versus Versus Versus Versus
  • Protein Utilization