Fistulation
In the case of fistulation , a domestic cattle surgically receives a screwable opening made of plastic ( cow fistula , rumen fistula ) for research purposes as a connection between the rumen and the outside world (colloquially known as "cow lid" or "cow with hole"). This fistula is used to repeatedly check the rumen content or to remove or insert components at short intervals. Above all, the investigations serve to research digestive processes .
Removal of rumen juice
Rumen juice can be extracted directly through the fistula.
On the one hand, the removed rumen juice can be used for further tests in the laboratory. The University of Hohenheim has been using this method to test feed in the Hohenheim feed value test since the mid-1990s.
On the other hand, it can also be used for therapeutic purposes in other cows with digestive problems (e.g. indigestion).
In situ method
With the in-situ method, nylon bags with food samples are placed in the rumen. With the help of examinations after the digestive activity in the rumen, information can be given about the digestibility of feed. The nylon bags allow the microorganisms to break down the feed, but no feed is lost. It is viewed critically that there was no pre-digestion with saliva in the mouth.
Web links
Individual evidence
- ↑ Agroscope (2005): "Cows with rumen fistula" ( Memento of the original from March 2, 2014 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. , accessed February 25, 2014.
- ↑ Herdenmanagement.com ( Memento of the original from January 20, 2015 in the Internet Archive ) Info: The archive link was inserted automatically and has not yet been checked. Please check the original and archive link according to the instructions and then remove this notice. (PDF; 52 kB).
