Techniques for blood collection from the rat include puncture of the heart, retro-orbital plexus, jugular vein, saphenous vein, tail blood vessels, carotid artery, abdominal aorta, and vena cava.

The silicone cannulas are inserted into a central vein, preferably the right internal jugular vein ... and are cut to the proper length. Prior to cutting the cannula, their tips are checked ...