Elwinger, Klas
- Department of Applied Animal Science and Welfare, Swedish University of Agricultural Sciences
Low-methionine diets is a potential health risk in organic egg production ELWINGER K. and TAUSON R. Department of Animal Nutrition and Management, SLU, SE 75323 Uppsala, Sweden Three trials were conducted to assess the possibility to supply laying hens with 100 % organically approved diets. Twelve pens were used, each comprising 100 hens in an aviary system and each with access to an out-door area. Each trial included a whole laying period, and diets differing in methionine content (range 2.2 to 3.8 g/kg) were fed to two genotypes in each trial: I LSL, SH (experimental); II Hyline, SH; III LSL, Lohmann Silver(LS). I and II are reported by Elwinger et al. (2008). Data from these trials and a third, not published, trial were recalculated using the GLM procedure in the SAS (2004). Models describing relationships between bird performance traits and the diets methionine (g/kg) content were fitted. Feed intake was also related to the birds feather cover (%). The best fits (all parameters p
17th European Symposium on Poultry Nutrition in Edinburgh in August 2009
Food Science
Animal and Dairy Science
Veterinary Science
https://res.slu.se/id/publ/27809