Growth, viscosity and beta-glucanase activity of intestinal fluid in broiler chickens fed on barley-based diets with or without exogenous beta-glucanase

British Poultry Science
J S PhilipR R Smithard

Abstract

1. Three groups of birds were fed for up to 35 days on diets containing 500 g barley (cv. Condor)/kg diet, with or without exogenous beta-glucanase, either a commercial preparation or a recombinant endoglucanase. 2. Birds which received diets containing the exogenous enzymes grew faster for the first 3 weeks but after that there was no apparent difference in rate of growth. 3. beta-Glucanase activities in the crop and small intestine of birds given exogenous enzymes were generally higher than those of birds given only the basal diet. 4. Viscosity of intestinal fluid in birds given only the basal diet decreased with age but there was no corresponding increase in beta-glucanase activity. This discounts bacterial beta-glucanase as a contributory factor in the adaptation to beta-glucanase apparent in older birds.

Citations

Jan 19, 2013·Transgenic Research·Li-zheng GuanYong-liang Zhang
Jul 16, 1999·Journal of Biotechnology·C M FontesJ Hall
Jul 3, 2004·The British Journal of Nutrition·M ChoctG Ross
May 23, 2000·British Poultry Science·A KocherJ Broz
Oct 3, 2002·Archiv für Tierernährung·R Timmler, M Rodehutscord
Apr 30, 2010·Biotechnology for Biofuels·Np NghiemG Konieczny-Janda
Dec 19, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Maciej Przybyłek

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