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''Bitter Harvest'' was a 1981 television docudrama about an accidental poisoning of cattle feed in the Midwest in the 1970s. Its plot is based on the 1973 Michigan PBB contamination incident. ==Plot== Ned De Vries (played by Ron Howard) is a Michigan dairy farmer, a young ambitious man with a wife and family, but he has a problem. His cattle are getting sick. De Vries calls the local veterinary authorities from the Michigan Farm Bureau who study his animals, take samples, and kill a small ailing calf to take the remains for autopsy. Judging from the results, they claim he is responsible for his problem. De Vries claims to have been feeding his livestock only on the recommended protein-enriched feeds, commonly marketed across the state by Michigan Farm Bureau Services. After scouring his pastures for signs of contaminants and studying his livestock to try to explain their symptoms, De Vries thinks he has made a breakthrough when he finds a nest of dead rats, and his own brief examination shows they all had symptoms similar to his cattle. The nest, like the rats, is full of cattle feed. When he presents his findings to the Bureau veterinarians, they pay no regard to his claims or fears that the feed might be poisoned. They choose to ignore him, leaving him frustrated in his search for an answer. Indeed his first thoughts that the rats would be part of the solution are now dashed, because naturally his family do not eat cattle feed, and they too are showing signs of skin complaints, headaches and feeling generally unwell. Now dispirited and desperate, Ned De Vries makes an impassioned plea to one of the Bureau’s lab technicians who wrote the report on his livestock. After some urging the man provides information that may help. The farm samples were tested by gas chromatography, the tests being run for several hours. By mistake, one of the tests was allowed to run all night long. Toward the end of this long print-out a single un-identified blip appeared on the result chart, showing an un-known substance in the calf’s tissues. Unable to help further, the technician gives De Vries the charts and points him in the direction of Dr. Morton Freeman ( Richard Dysart ), a respected scientist and researcher. Dr. Freeman responds to De Vries' request for help and identifies the blip on the chart as Polybrominated biphenyl (PBB), a flame retardant used in Firemaster extinguishers. At last the answer is in his hands. De Vries is surprised to find Dr. Freeman visiting him the following morning, but the doctor has been doing further research into PBBs. Exposure symptoms match what they already know, and include memory loss and possible cancer. They find that the substance that has poisoned his livestock can be passed on to humans by eating beef and drinking milk. This is clearly shown by his family's poor health. His wife can no longer breast feed her baby, as that too would pass on any PBB she has in her body. The substance is stored in body fat and is cumulative. It's firmly in the food chain, and the long-term effects are uncertain, as there is no known way to remove PBB once it has been ingested. After being met with scepticism for so long, De Vries finds he is now bogged down in bureaucratic inertia, even with the support of Dr. Freeman and his findings. He travels the state in his spare time, gathering all the information he can about the spread of the contaminant. He finds another farmer like himself, dispirited and without hope after a long struggle with the Farming Bureau and official policy. He too has lost cattle and his family is also in poor health; and he has carried the burden of guilt that he is somehow directly responsible for all that has happened to him. The source of the contamination is revealed as the film draws to its close. In the Farm Bureau Services mill near Battle Creek, Michigan, the proteins that are added to animal feed, and the chemicals (PBB) used in fire retardant, are being stored in identical coloured paper sacks, on pallets placed side by side. No-one can tell at a glance which is which, and it becomes evident that they could easily have been switched in error. The film concludes a year after the initial outbreak, with the killing of Ned De Vries’ entire herd, as the animals are led into a deep open pit, shot, and bulldozed over with soil. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Bitter Harvest (1981 film)」の詳細全文を読む スポンサード リンク
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