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.

During a two-year carcinogenicity study on an agrochemical compound, histopathological evaluation showed necrosis and moderate inflammation in the brain of a female Wistar rat. The study was ...