Reading some of this Time article about the high price of cheap food brought to mind some of the many, other connections to the same. You can go read that, but this has all been mainstream for quite a while now. The following is from Upton Sinclair’s The Jungle (1906):

The carcass hog was scooped out of the vat by machinery, and then it fell to the second floor, passing on the way through a wonderful machine with numerous scrapers, which adjusted themselves to the size and shape of the animal, and sent it out at the other end with nearly all of its bristles removed. It was then again strung up by machinery, and sent upon another trolley ride; this time passing between two lines of men, who sat upon a raised platform, each doing a certain single thing to the carcass as it came to him. One scraped the outside of a leg; another scraped the inside of the same leg. One with a swift stroke cut the throat; another with two swift strokes severed the head, which fell to the floor and vanished through a hole. Another made a slit down the body; a second opened the body wider; a third with a saw cut the breastbone; a fourth loosened the entrails; a fifth pulled them out – and they also slid through a hole in the floor. There were men to scrape each side and men to scrape the back; there were men to clean the carcass inside, to trim it and wash it. Looking down this room, one saw, creeping slowly, a line of dangling hogs a hundred yards in length; and for every yard there was a man, working as if a demon were after him. At the end of this hog’s progress every inch of the carcass had been gone over several times; and then it was rolled into the chilling room, where it stayed for twenty-four hours, and where a stranger might lose himself in a forest of freezing hogs.

Before the carcass was admitted here, however, it had to pass a government inspector, who sat in the doorway and felt of the glands in the neck for tuberculosis. This government inspector did not have the manner of a man who was worked to death; he was apparently not haunted by a fear that the hog might get by him before he had finished his testing. If you were a sociable person, he was quite willing to enter into conversation with you, and to explain to you the deadly nature of the ptomaines which are found in tubercular pork; and while he was talking with you you could hardly be so ungrateful as to notice that a dozen carcasses were passing him untouched. This inspector wore a blue uniform, with brass buttons, and he gave an atmosphere of authority to the scene, and, as it were, put the stamp of official approval upon the things which were done in Durham’s.

Jurgis went down the line with the rest of the visitors, staring openmouthed, lost in wonder. He had dressed hogs himself in the forest of Lithuania; but he had never expected to live to see one hog dressed by several hundred men. It was like a wonderful poem to him, and he took it all in guilelessly – even to the conspicuous signs demanding immaculate cleanliness of the employees. Jurgis was vexed when the cynical Jokubas translated these signs with sarcastic comments, offering to take them to the secret rooms where the spoiled meats went to be doctored.

The party descended to the next floor, where the various waste materials were treated. Here came the entrails, to be scraped and washed clean for sausage casings; men and women worked here in the midst of a sickening stench, which caused the visitors to hasten by, gasping. To another room came all the scraps to be “tanked,” which meant boiling and pumping off the grease to make soap and lard; below they took out the refuse, and this, too, was a region in which the visitors did not linger. In still other places men were engaged in cutting up the carcasses that had been through the chilling rooms. First there were the “splitters,” the most expert workmen in the plant, who earned as high as fifty cents an hour, and did not a thing all day except chop hogs down the middle. Then there were “cleaver men,” great giants with muscles of iron; each had two men to attend him – to slide the half carcass in front of him on the table, and hold it while he chopped it, and then turn each piece so that he might chop it once more. His cleaver had a blade about two feet long, and he never made but one cut; he made it so neatly, too, that his implement did not smite through and dull itself – there was just enough force for a perfect cut, and no more. So through various yawning holes there slipped to the floor below – to one room hams, to another forequarters, to another sides of pork. One might go down to this floor and see the pickling rooms, where the hams were put into vats, and the great smoke rooms, with their airtight iron doors. In other rooms they prepared salt pork – there were whole cellars full of it, built up in great towers to the ceiling. In yet other rooms they were putting up meats in boxes and barrels, and wrapping hams and bacon in oiled paper, sealing and labeling and sewing them. From the doors of these rooms went men with loaded trucks, to the platform where freight cars were waiting to be filled; and one went out there and realized with a start that he had come at last to the ground floor of this enormous building.

Then the party went across the street to where they did the killing of beef – where every hour they turned four or five hundred cattle into meat. Unlike the place they had left, all this work was done on one floor; and instead of there being one line of carcasses which moved to the workmen, there were fifteen or twenty lines, and the men moved from one to another of these. This made a scene of intense activity, a picture of human power wonderful to watch. It was all in one great room, like a circus amphitheater, with a gallery for visitors running over the center.

Along one side of the room ran a narrow gallery, a few feet from the floor; into which gallery the cattle were driven by men with goads which gave them electric shocks. Once crowded in here, the creatures were prisoned, each in a separate pen, by gates that shut, leaving them no room to turn around; and while they stood bellowing and plunging, over the top of the pen there leaned one of the “knockers,” armed with a sledge hammer, and watching for a chance to deal a blow. The room echoed with the thuds in quick succession, and the stamping and kicking of the steers. The instant the animal had fallen, the “knocker” passed on to another; while a second man raised a lever, and the side of the pen was raised, and the animal, still kicking and struggling, slid out to the “killing bed.” Here a man put shackles about one leg, and pressed another lever, and the body was jerked up into the air. There were fifteen or twenty such pens, and it was a matter of only a couple of minutes to knock fifteen or twenty cattle and roll them out. Then once more the gates were opened, and another lot rushed in; and so out of each pen there rolled a steady stream of carcasses, which the men upon the killing beds had to get out of the way.

The manner in which they did this was something to be seen and never forgotten. They worked with furious intensity, literally upon the run –

at a pace with which there is nothing to be compared except a football game. It was all highly specialized labor, each man having his task to do; generally this would consist of only two or three specific cuts, and he would pass down the line of fifteen or twenty carcasses, making these cuts upon each. First there came the “butcher,” to bleed them; this meant one swift stroke, so swift that you could not see it – only the flash of the knife; and before you could realize it, the man had darted on to the next line, and a stream of bright red was pouring out upon the floor. This floor was half an inch deep with blood, in spite of the best efforts of men who kept shoveling it through holes; it must have made the floor slippery, but no one could have guessed this by watching the men at work.

And to add to that, here’s also a bit of Plexus, The Rosy Crucifixion, Book Two by Henry Miller.

There remained only a few faculties the monster would never possess, but of these animal functions th emaster himself was not particualry proud. it was obvious that, if he were to recapture his peace of mind, there was only one thing to be done – destroy his precious creation! This however, he was loath to do. It had taken him twenty years to put the monster together and make him function. In th ewhole wide world there was nothing to equal the bloody idoit. Moreover he could no longer recall by what intricate, complicated and mysterious processes he had brought his labors to fruition. In every way, Picodiribibi rivaled the human being whose simulacrum he was. True, he would never be able to reproduce his own kind, but like the freaks and sports of human spawn, he would undoubtedly leave in the memory of man a disturbing haunting image.

To such a pass the great scholar had come that he almost lost his mind. Unable to destroy his invention, he racked his brain to determine how and where he might sequester him. For a time he thought of burying him in the garden, in an iron casket. he even entertained the idea of locking him up in a monastery. But fear, fear of loss, fear of damage or deterioration, paralyzed him. it was becoming more and more clear that, inasmuch as he had brought Picodiribibi into being, he would have to live with him forever. He found himself pondering how they could be buried together, secretly, when the time came. Strange thought! The idea of taking with him to the grave a creature which was not alive, and yet in many ways more alive than himself, terrified him. He was convinced that, even in the next world,  this prodigy to which he had given birth would plague him, would possibly usurp his own celestial privileges. he began to realize that, in assuming the powers of the Creator, he had robbed himself of the blessing which death confers upon even the humblest believer. He saw himself as a shade flitting forever between two worlds – and his creation pursuing him. Ever a dvout man, he now began to pray long and fervently for deliverance. On his knees he begged the Lord to intercede, to lift from his shoulders the awesome burden of responsibility which he had unthinkingly assumed. But the Almighty ignored his pleas.

Pick it up on page 410… it gets even better.