USPOULTRY and the USPOULTRY Foundation have announced the completion of a funded research project at the Ohio Agricultural Research and Development Center in Wooster, in which researchers looked at the role of vitamin D in fighting coccidiosis in turkeys. The research project has been designated as the Virgil H. Cooper Turkey Fund 2014 award and is part of the association’s comprehensive research program encompassing all phases of poultry and egg production and processing. A brief summary of the completed project is shown below. A complete report, along with information on other association research, may be obtained by going to

The project summary is as follows:

Project #689: 25-OH Cholecalciferol (HyD) Supplementation to Improve Anti-Coccidial Defense in Turkeys 


(Dr. Ramesh Selvaraj, Ohio Agriculture Research and Development Center)

Dr. Selvaraj and colleagues found that supplementation of turkey feed with increased levels of a form of vitamin D, 25-OH cholecalciferol, improved body weight gain and decreased the fecal shedding of coccidial oocysts following coccidia challenge. This novel approach to controlling coccidiosis may prove useful for production programs which rely less on the use of anticoccidial compounds.

For a detailed summary, click here.