In the daily pig production, some pig farmers often judge whether the feed used is good or bad based on the color of the pig manure. In fact, this is a misunderstanding. The color of pig manure is not directly related to the quality of the feed, but it is related to the type of feed ingredients and whether high-dose copper sulfate is used. For example, the use of conventional feed ingredients, because the high copper can antibacterial and promote the growth of pigs, pigs dung after the increase of copper is relatively dark, it is considered that pig manure black feed is a good feed. In fact, there are many kinds of feed additives that can actually be used as antibacterial agents to promote growth. In feed formulations, it is not always necessary to choose to use high-copper. Black pig manure is not a standard for judging the quality of feed. If the amount of copper in the diet used exceeds 250 mg/kg, the liver will accumulate a large amount of copper, causing pig poisoning. At the same time, a large amount of copper is excreted, and it will also seriously pollute the environment. The production of pollution-free pork requires that no high copper be added to the feed. At present, the environmental protection situation is grim, and the country’s requirements for environmental protection are increasingly strict. Even under other circumstances, the use of high copper is not recommended for environmental protection. Therefore, I hope that the majority of pig farmers will establish their awareness of environmental protection and consciously do not use feed that can easily pollute the environment.
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Does the quality of the feed affect the color of pig manure?