THE EFFECT OF NON-STARCH POLYSACCHARIDES DERIVED FROM DIFFERENT GRAINS ON PERFORMANCE AND DIGESTIVE ACTIVITY IN LAYING HENS

*S. Hartini -  Faculty of Animal Husbandry, Fishery and Marine Science, Papua State University, Jl. Gunung Salju, Amban, Manokwari 98314, Papua Barat, Indonesia
M. Choct -  School of Rural Science and Agriculture, University of New England, Armidale, NSW 2351, Australia
Published: 15 Jun 2010.
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Language: EN
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Abstract
An experiment was conducted to observe the effect of non-starch polysaccharides (NSP) onperformance and digestive activity of laying hens. Thirty-two ISA Brown hens were individually cagedand offered four diets (wheat-based, millrun-based, barley-based, and barley-enzymes diets) for 10weeks. The present experiment was assigned in a completely randomized design with 8 replicates perdietary treatment. Wheat- and barley diets caused significantly higher (P<0.05) viscosity than otherdiets. Increased viscosity caused lower digesta dry matter (DM) (P<0.01) and higher excreta moisture(P<0.05). The wheat diet did not cause a negative effect on intestinal starch digestibility, feed intake, andbird performance (P>0.05). Birds fed the barley-based diet had lower weight gain (P<0.05) and highercaecal weight (P<0.05) than those given other diets. Enzyme supplementation on barley dietssignificantly (P<0.05) reduced jejunal digesta viscosity and caecal weight, increased weight gain(P<0.05) and ileal digesta DM (P<0.01), and numerically reduced excreta moisture. The current studydemonstrated that NSP have a profound effect on digesta viscosity, performance, and digestive organs ofbirds; however, the NSP action may be modified by an interaction with each other and with other cellwallcomponents of grains in the gut. Enzyme supplementation reduced the negative effect of digestaviscosity.
Keywords
digestive organs. digesta viscosity. enzyme supplementation. laying hens. NSP

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