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Position: Home > Articles > Characteristics of lipids and their feeding value in swine diets Journal of Animal Science and Biotechnology 2015,6

Characteristics of lipids and their feeding value in swine diets

作  者：
B. J. Kerr;T. A. Kellner;Gerald C Shurso
单  位：
Department of Animal Science, Iowa State University, Ames, USA;Department of Animal Science, University of Minnesota, St. Paul, US;USDA-ARS-National Laboratory for Agriculture and the Environment, Ames, USA
关键词：
Digestion;Energy;Lipids;Peroxidation;Pig
摘  要：
In livestock diets, energy is one of the most expensive nutritional components of feed formulation. Because lipids are a concentrated energy source, inclusion of lipids are known to affect growth rate and feed efficiency, but are also known to affect diet palatability, feed dustiness, and pellet quality. In reviewing the literature, the majority of research studies conducted on the subject of lipids have focused mainly on the effects of feeding presumably high quality lipids on growth performance, digestion, and metabolism in young animals. There is, however, the wide array of composition and quality differences among lipid sources available to the animal industry making it essential to understand differences in lipid composition and quality factors affecting their digestion and metabolism more fully. In addition there is often confusion in lipid nomenclature, measuring lipid content and composition, and evaluating quality factors necessary to understand the true feeding value to animals. Lastly, advances in understanding lipid digestion, post-absorption metabolism, and physiological processes (e.g., cell division and differentiation, immune function and inflammation); and in metabolic oxidative stress in the animal and lipid peroxidation, necessitates a more compressive assessment of factors affecting the value of lipid supplementation to livestock diets. The following review provides insight into lipid classification, digestion and absorption, lipid peroxidation indices, lipid quality and nutritional value, and antioxidants in growing pigs.

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