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Engineering    2017, Vol. 3 Issue (5) : 716 -725
Research |
Nutritional and Metabolic Consequences of Feeding High-Fiber Diets to Swine: A Review
Atta K. Agyekum1,C. Martin Nyachoti2()
1. Prairie Swine Center Inc., Saskatoon, SK S7H 5N9, Canada
2. Department of Animal Science, University of Manitoba, Winnipeg, MB R3T 2N2, Canada

At present, substantial amounts of low-cost, fibrous co-products are incorporated into pig diets to reduce the cost of raising swine. However, diets that are rich in fiber are of low nutritive value because pigs cannot degrade dietary fiber. In addition, high-fiber diets have been associated with reduced nutrient utilization and pig performance. However, recent reports are often contradictory and the negative effects of high-fiber diets are influenced by the fiber source, type, and inclusion level. In addition, the effects of dietary fiber on pig growth and physiological responses are often confounded by the many analytical methods that are used to measure dietary fiber and its components. Several strategies have been employed to ameliorate the negative effects associated with the ingestion of high-fiber diets in pigs and to improve the nutritive value of such diets. Exogenous fiber-degrading enzymes are widely used to improve nutrient utilization and pig performance. However, the results of research reports have not been consistent and there is a need to elucidate the mode of action of exogenous enzymes on the metabolic and physiological responses in pigs that are fed high-fiber diets. On the other hand, dietary fiber is increasingly used as a means of promoting pig gut health and gestating sow welfare. In this review, dietary fiber and its effects on pig nutrition, gut physiology, and sow welfare are discussed. In addition, areas that need further research are suggested to gain more insight into dietary fiber and into the use of exogenous enzymes to improve the utilization of high-fiber diets by pigs.

Keywords Gut physiology      High-fiber diets      Nutrient utilization      Pigs      Sow welfare     
Corresponding Authors: C. Martin Nyachoti   
Just Accepted Date: 24 May 2017   Online First Date: 28 July 2017    Issue Date: 08 November 2017
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Atta K. Agyekum,C. Martin Nyachoti. Nutritional and Metabolic Consequences of Feeding High-Fiber Diets to Swine: A Review[J]. Engineering, 2017, 3(5): 716 -725 .
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