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Characterization of Dietary Energy in Swine Feed and Feed Ingredients: A Review of Recent Research Results

  • Velayudhan, D.E. ;
  • Kim, I.H. ;
  • Nyachoti, C.M.
  • Published : 2015.01.01

Abstract

Feed is single most expensive input in commercial pork production representing more than 50% of the total cost of production. The greatest proportion of this cost is associated with the energy component, thus making energy the most important dietary in terms of cost. For efficient pork production, it is imperative that diets are formulated to accurately match dietary energy supply to requirements for maintenance and productive functions. To achieve this goal, it is critical that the energy value of feeds is precisely determined and that the energy system that best meets the energy needs of a pig is used. Therefore, the present review focuses on dietary supply and needs for pigs and the available energy systems for formulating swine diets with particular emphasis on the net energy system. In addition to providing a more accurate estimate of the energy available to the animal in an ingredient and the subsequent diet, diets formulated using the this system are typically lower in crude protein, which leads to additional benefits in terms of reduced nitrogen excretion and consequent environmental pollution. Furthermore, using the net energy system may reduce diet cost as it allows for increased use of feedstuffs containing fibre in place of feedstuffs containing starch. A brief review of the use of distiller dried grains with solubles in swine diets as an energy source is included.

Keywords

Dietary Energy;Net Energy;Measurement;Distiller Dried Grains with Solubles;Pigs

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Acknowledgement

Grant : "친환경, 안전축산물 생산을 위한 동물자원 전문인력 양성사업팀"