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- Effects of Fermentable Carbohydrates and Dietary P Supply on Bacterial P Incorporation, Activity and Composition in the Gastrointestinal Tract of Pigs
Effects of Fermentable Carbohydrates and Dietary P Supply on Bacterial P Incorporation, Activity and Composition in the Gastrointestinal Tract of Pigs
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Fermentable carbohydrates, such as cellulose and pectin, adversely affect nutrient utilisation in pigs, especially at high dietary inclusion levels. There exists little information about the bacterial phosphorus (P) requirement for fermentation of certain carbohydrates in pigs which may affect the P availability of the host animal. However, the bacterial species composition is known to be susceptible to changes in the carbohydrate composition of the diet. Furthermore, bacterial activity may depend on the bacterial P availability in intestinal digesta. Therefore, this study aimed to determine the bacterial P incorporation, activity and species composition in response to fermentable carbohydrates as well as to differing dietary supply of P. Moreover, the influence on the P recovery in ileal digesta and faeces were estimated.
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