Feeding layers of different genotypes in organic feed environments

• Published in: British poultry science Vol. 49; no. 6; pp. 654 - 665
• Main Authors: Elwinger, K, Tufvesson, M, Lagerkvist, G, Tauson, R
• Format: Journal Article
• Language: English
• Published: England Taylor & Francis Group 01.11.2008
• Subjects: Animal Feed; Animal Nutritional Physiological Phenomena; Animals; Behavior, Animal; cannibalism; chicken breeds; Chickens - genetics; Chickens - metabolism; Chickens - physiology; Clutch Size; Diet; egg production; egg weight; feather pecking; Feathers; feed rations; Female; Food, Organic; Genotype; genotype-environment interaction; hen feeding; Housing, Animal; laying hens; laying performance; Light; low protein diet; methionine; Methionine - metabolism; misplaced eggs; mortality; Nutritive Value; organic feeds; organic production; Ovum - growth & development; Selection, Genetic; Skin; sulfur amino acids

1. Two experiments were carried out to evaluate the suitability of an experimental laying hen genotype (SH) in organic egg production. SH had been selected over 25 generations on a low protein diet (130 g/kg) based on home grown feedstuffs. SH hens were compared with LSL (Experiment 1) and Hyline (E...