A method for obtaining abomasal fluid via a rumen fistula.
Abomasal fluid was collected from adult cows using a specially designed tube device.  The device was placed in the abomasum through a rumen fistula. A filter on the end of the tube filtered out the larger particles so the liquid could be aspirated up a smaller tube placed inside a larger one. The smaller tube reduced the amount of dead space created by the distance from the abomasum to the rumen fistula.
D000018:Abomasum; D000818:Animals; D002417:Cattle / Q000502:physiology*; D005402:Fistula; D012417:Rumen / Q000502:physiology* / Q000601:surgery; D013048:Specimen Handling / Q000295:instrumentation / Q000662:veterinary*