Inclusion of Dust Bathing Materials Affects Nutrient Digestion and Gut Physiology of Layers

Hetland, 2001, Effect of oat hulls on performance, gut capacity and feed passage time in broiler chickens, Br. Poult. Sci., 42, 354, 10.1080/00071660120055331 Hetland, 2003, Effects of oat hulls and wood shavings on digestion in broilers and layers fed diets based on whole or ground wheat, Br. Poult. Sci., 44, 275, 10.1080/0007166031000124595 Rogel, 1987, The digestion of wheat starch in broiler chickens, Aust. J. Agric. Res., 38, 639, 10.1071/AR9870639 Hetland, 2002, Effect of feeding whole cereals on performance, starch digestibility and duodenal particle size distribution in broiler chickens, Br. Poult. Sci., 43, 416, 10.1080/00071660120103693 Lohmann Selected Leghorns, Cuxhaven, Germany. Victorson AB, Lillesås, Sweden. Tauson, 1984, Evaluation of procedures for scoring the integument of laying hens—independent scoring of plumage condition, Acta Agric. Scand., 34, 400, 10.1080/00015128409435409 2000 Parr 1281, adiabatic calorimeter, Parr Instrument Co., Moline, IL. Release 8.2, SAS Inst. Inc, Cary, NC. Hetland, 2005, Role of insoluble fiber on gizzard activity in layers, J. Appl. Poult. Res., 14, 38, 10.1093/japr/14.1.38 Aerni, 2000, Effect of foraging material and food form on feather pecking in laying hens, Br. Poult. Sci., 41, 16, 10.1080/00071660086349 El-Lethey, 2000, Stress and feather pecking in laying hens in relation to housing conditions, Br. Poult. Sci., 41, 22, 10.1080/00071660086358 Hartini, 2002, Effects of light intensity during rearing, beak trimming and dietary fiber sources on mortality, egg production and performance of ISA brown laying hens, J. Appl. Poult. Res., 11, 104, 10.1093/japr/11.1.104