File:Relationship-between-clinical-signs-and-postmortem-test-status-in-cattle-experimentally-infected-1746-6148-6-53-S5.ogv

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Relationship-between-clinical-signs-and-postmortem-test-status-in-cattle-experimentally-infected-1746-6148-6-53-S5.ogv ‎(Ogg multiplexed audio/video file, Theora/Vorbis, length 1 min 24 s, 350 × 274 pixels, 952 kbps overall, file size: 9.55 MB)

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English: 139 (BSE positive-HP). Steer, examined prior to cull at 39 months after oral dosing with 100 g of BSE affected brainstem homogenate (study 1). This steer is apprehensive in the corridor and very reluctant to approach the crush, seemingly afraid of the channel and later the wet patch on the floor. Note the spontaneous startle while approaching the crush. Its reaction to menace response testing is exaggerated and it over-reacts to facial stimuli with repeated rapid, forceful upwards head movements (head bobbing, recorded as 'nervous on head tests'). Exposure to a flash of light elicits startle, even on repeated tests. This steer was positive for BSE by postmortem tests with vacuolar changes in the obex.
Date
Source Konold T, Sayers A, Sach A, Bone G, van Winden S, Wells G, Simmons M, Stack M, Wear A, Hawkins S (2010). "Relationship between clinical signs and postmortem test status in cattle experimentally infected with the bovine spongiform encephalopathy agent". BMC Veterinary Research. DOI:10.1186/1746-6148-6-53. PMID 21143919. PMC: 3019182.
Author Konold T, Sayers A, Sach A, Bone G, van Winden S, Wells G, Simmons M, Stack M, Wear A, Hawkins S
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current07:36, 20 November 20121 min 24 s, 350 × 274 (9.55 MB)Open Access Media Importer Bot (talk | contribs)Automatically uploaded media file from Open Access source. Please report problems or suggestions here.

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Format Bitrate Download Status Encode time
VP9 240P 330 kbps Completed 09:22, 17 October 2018 49 s
Streaming 240p (VP9) 259 kbps Completed 21:35, 16 December 2023 1.0 s
WebM 360P 672 kbps Completed 08:38, 2 December 2023 10 s
Streaming 144p (MJPEG) 811 kbps Completed 22:45, 18 November 2023 2.0 s
Stereo (Opus) 70 kbps Completed 07:44, 23 November 2023 2.0 s
Stereo (MP3) 127 kbps Completed 22:45, 18 November 2023 2.0 s

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