Testicular, ovarian reproductive toxicity Where is Gossypol sacred? Why should it be used in chicken feed? Zhou Weiren told reporters that in order to ensure the high protein content of eggs, a large amount of feed with high nitrogen content was added to the feed. The most commonly used is soybean meal, which is a by-product of the extraction of soybean oil from soybeans. However, the price of soybean meal has always been relatively high, and 43% of nitrogen-containing soybean meal is currently over 3,000 yuan per ton. Later, they chose cottonseed cakes and cottonseeds, which are relatively inexpensive, as by-products of cottonseed crushing. At present, the price of cottonseed containing 40% nitrogen is as low as 1,800 yuan, which is nearly half that of soybean meal. However, cottonseed cake and cottonseed meal contain a gossypol with reproductive toxicity. Studies have shown that male genital organs are the main target organs of gossypol that cause reproductive toxicity. They can destroy the spermatogenic epithelium of testes in males, causing sperm abnormalities, death, and even azoospermia, resulting in decreased reproductive capacity. Not only that, gossypol can also destroy the epididymis of male animals and the ovary of female animals. Therefore, in the national standard, the content of cottonseed cake and cottonseed meal should not exceed 1200 mg per kilogram of feed. Zhou Weiren also stressed that there is currently no evidence that the gossypol contained in the rubber egg must have reproductive toxicity to the human body. After all, the proportion of cottonseed cakes in chicken feed is not too high, and even less in the eggs, it is difficult to say that it will certainly cause harm to the human body. However, for the sake of caution, it is better to eat less of this rubber egg.
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What is the harm of gossypol in chicken feed