JACKSON - Nine elk so far have tested positive for brucellosis at feedgrounds in Sublette County in western Wyoming this week.
Wyoming Game and Fish Department officials captured more than 300 elk at three test-and-slaughter feedgrounds in Sublette County.
Animals that test positive for brucellosis are sent to an Idaho facility for slaughter.
The disease causes infected pregnant elk and cattle to abort fetuses.
Game and Fish spokesman Mark Gocke said one elk calf suffered a broken leg and had to be euthanized.
Officials plan to conduct another week of testing beginning Feb. 8.
Officials say the objective of the experimental test-and-slaughter program is to reduce brucellosis prevalence among elk.
Conservation groups say the program is not a good long-term solution because it does not address the root of the problem, which is crowded conditions on feedgrounds.