Tri S Livestock

Tri S Livestock, Dorper sheep, Ontario, OR, is based in Eastern Oregon near Boise. Tri S Livestock has maintained registered breeding standards for Dorper sheep through several seasons and follows routine health screening including fecal testing and hoof inspections.

The flock grazes on irrigated pasture with ample shelter and daily social interaction from the farm team, and lambs grow up in mixed-age groups to develop calm temperaments. All animals receive regular hoof trimming, vaccination, and handling from early life to ensure ease of care. Tri S Livestock’s ewes have earned ribbons at local fairs and are known among regional farmers for consistent lambing rates. Community members often praise the gentle nature of the flock and the clear record keeping of breeding lines. They track lamb weights and health milestones from birth to sale, offering transparency on growth and lineage. The farm’s proximity to arid rangeland and its irrigation system supports a careful forage rotation that promotes resilience in the flock.