A total of 80 day old British United Turkeys were subjected to four dietary treatments at varying levels of niacin + yeast. Each treatment had 20 birds of 4 replicates with 5 birds in each replicate. Niacin + yeast (240 ppm niacin + 1.5g/kg yeast and 200 ppm niacin + 1.5 g/kg yeast, at the starter, grower, and finisher phase) showed significant effect on body weight gain, serum Low Density Lipo...

A study was conducted utilizing two strains of male Large White turkeys (BUT Big 6 and Nicholas 700) to determine the effects of increasing Arg:Lys ratios on live performance and carcass composition. Diets were formulated to provide 100, 110, and 120% of NRC (1994) Lys levels, adjusted for dietary energy level, with Arg:Lys ratios of 1.0:1, 1.1:1, 1.2:1, and 1.3:1 in a 3 x 4 factorial arrangeme...

BACKGROUND The enzyme phytase is able to initiate the release of phosphates from phytic acid, making it available for absorption within gastrointestinal tract and following utilization. The aim of the study was to determine effects of Escherichia coli phytase administration on morphological, densitometric and mechanical properties of femur in 16-week-old turkeys. One-day-old BUT Big-6 males wer...

Triple reassortant (TR) H3N2 influenza viruses have been isolated from turkeys in the United States since 2003. These TR H3N2 virus infections have been associated with drastic declines in egg production in breeder turkeys although co-infection with multiple agents could have been responsible for exacerbating the clinical signs. In this study, we experimentally confirmed that TR H3N2 influenza ...

Body weight, livability, and feed conversion of a randombred control turkey line (RBC2) started in 1966 at The Ohio State University was compared with that of modern commercial turkeys hatched in 2003 when fed representative 1966- and 2003-type diets from hatch (March 5, 2003) through 196 d of age. Each pen of modern turkeys consisted of 5 birds each of the Nicholas, British United Turkeys of A...

1 Department of Medicine, Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada. 2 School of Environmental Health, University of British Columbia, Vancouver, British Columbia, Canada. 3 United Kingdom HuGENet Coordinating Centre, Strangeways Research Laboratory, University of Cambridge, Cambridge, United Kingdom. 4 MRC Biostatistics Unit, Institute of Public H...