IMG_0002 - Finally Dr. Ramirez performed a necropsy of a...

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2. ln orderto collect tissue samples there is often euthanasia involved. As discu#ffiF the PQA lab there are several approved methods of euthanasia with varying levels of safety. One of the more expensive, but safest methods is the use of a captive bolt gun. A captive bolt gun allows a bolt to penetrate the head of a pig killing it instantly without the added dangers of using an actual gun in a building made of steel and concrete. This method is recommended by most veterinarians but many producers choose another option due to the upfront expense. Dr. Ramirez also explained the importance of following proper euthanasia protocols from an animal welfare stand point as well as safety to the workers. He also discussed how to properly select a pig for euthanasia to collect tissue samples to get the best results. The best candidate in a building is a pig showing the symptoms of the majority of the herd, with an acute onset (as opposed to chronic) that has not been treated.
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Unformatted text preview: Finally Dr. Ramirez performed a necropsy of a nursery pig and explained the proper technique for opening a pig and how to remove organs in the most effective manner as to not cause contamination. ln the process he pointed out the location of various organs throughout the pig and explained their level of use in diagnostic medicine. The pig poste$(n our lab had been off feed for a few hours leaving an empty and fluid filled stomach, contained some excessive fibrin in the abdominal cavity, had abnormally soft ribs, showed slightly heavy and damp lungs, and had an odd discoloration on the exterior of the kidneys showing signs of slight inflammation. All lymph nodes, liver, fecal matter (in the rectum), heart, and intestinal content appeared normal. It was a safe assumption that there was something occurring in the pig that would cause it not to grow as efficiently as it could, but it there were no obvious signs of one common illness. 3....
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This note was uploaded on 02/14/2012 for the course ANS 225 taught by Professor Baas during the Spring '08 term at Iowa State.

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