Cannulae
Bar Diamond rumen cannulae are designed for the long-term comfort of fistulated ruminants while providing reliable access for research, education, and veterinary applications.
Used by animal scientists around the world since 1976.
Browse by Category
Large Rumen Cannulae
For cattle and large ruminantsPrecision-fit rumen cannulae in multiple sizes for cattle research and veterinary applications.
Small Rumen Cannulae
For sheep, goats, and small ruminantsCompact rumen cannulae designed for sheep, goats, and other small ruminant research.
Washers & Stoppers
Replacement partsReplacement washers and stoppers compatible with all Bar Diamond rumen cannula sizes.
Esophageal Cannulae
Esophageal access for ruminant researchEsophageal cannulae and aluminum plugs for sampling and research in ruminant animals.
Stopper Accessories
Add-on hardwareLock plates, U-bolt add-ons, and screw top stoppers compatible with Bar Diamond replacement stoppers.
General Supplies
Cleaning, materials & equipmentCleaning products, plastisol fabrication materials, in-situ bags, and rumen fluid collection equipment.