it took me a bit to find, but this is a great thread where @MorlockP explains his philosophy toward raising animals for meat, as well as the butchering process https://news.ycombinator.com/item?id=12654732 …
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ok sure! I'm drinking now, so no problem going to untag everyone else after this, feel free to read on if you like folks
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ok so my first lab was a corvid lab, strictly behavioral we trained em to hop on perches following lights, and to make choices about when to have food delivered this was cool and good, I had no problem with this
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the next animal lab I worked in was birdsong neuroscience and this is what I had a problem with there were two main classes of protocols: in vivo neural monitoring, and cytology the cytology was . . . okay. ish. birds had to be killed to collect their brains . . .
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so that we could slice them finely, for staining. The particular method of sacrifice, which was the working euphemism for killing, was a really gruesome approach called perfusion, where the chest was sliced across laterally at the aorta so the heart could exsanguinate the animal
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The animals had to be alive for this, but they were deeply deeply and irreversibly anaesthetized, so while it was horrible to watch they didn't feel it. The in vivo monitoring was much worse I think.
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The protocol here involved monitoring (i) certain discrete regions of the bird's brain, in real time, using implanted wires; and (ii) tracking their (sometimes silent) production of song by measuring air pressure in their lungs.
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in order to do (i), we performed surgery that involved slicing off the top of the animal's skull; implanting a microelectronic array that included a protruding chip you could plug into a monitor wire; then resealing the brain with a cement.
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