Cannulated cow

In a Fistulierung a screw hole in plastic ( Kuhfistel, rumen fistula ) a Domestic Cattle receives for research purposes operationally as a link between the rumen and the outside world. This fistula is used again and again to check up at short intervals the rumen contents or to remove components or rider. In particular, the studies of research on digestive processes are used.

Withdrawals

It can be withdrawals of rumen fluid to perform further studies will then take place in the test tube. With this method, the University of Hohenheim is testing the Hohenheim feed value test since the mid-1990s feed.

In situ method

In the in situ nylon bag method are given with feed samples in the rumen. Using examinations after digestion in the rumen can be made information on the digestibility of feed. Due to the nylon bag, the microorganisms can decompose the food, but go no feed lost. Critical is seen here is that no pre-digestion has taken place with saliva in the mouth.