File:Experimental-H-type-and-L-type-bovine-spongiform-encephalopathy-in-cattle-observation-of-two-1746-6148-8-22-S5.ogv

English: H-type BSE (H4b) H-type BSE-inoculated steer at 21 mpi (prior to cull), 'dull form'. This steer stood for considerable time in the pen with low head carriage whilst its pen mates were lying ruminating in the other half of the pen. It does not rise upon entering the pen when surrounded by its pen mates but rises when the rump is touched, dragging its body along the floor (rising score 2). Cranial nerve assessments are well tolerated. Its behaviour in the corridor is unremarkable (no signs of apprehension). It displays mild hind limb hypometria, best seen when the animal turns at the end of the corridor.