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Use of fibres in pig feed : consequences on nutrition, health and behaviour
Abstract
Dietary fibre is defined as a heterogeneous mixture of structural and non-structural polysaccharides together or not with lignin, which are resistant to hydrolysis by endogenous digestive enzymes. Dietary fibre introduction in pig feeds decreases their nutritional values but could also be potentially interesting for non-nutritive aspects in the current context of pig production. Thus, dietary fibre introduction may interact with gut health and welfare in feed-restricted sows. This text reviews the physiological mechanisms of dietary fibre digestion and their consequences on metabolism. Impacts on gut health and welfare are illustrated for piglets and sows, respectively.
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