In the rural survey, we found that many breeders often do not understand the antagonistic effects of various feed additives when they are raising livestock and poultry. They often mix and feed them together, so that they can not only achieve the desired effect, but also negative. effect. To this end, we will introduce some feed additives that can produce antagonistic effects as follows: 
1. Calcium and phosphorus are difficult to be absorbed in an alkaline environment, so calcium and phosphorus additives cannot be used simultaneously with alkaline additives such as choline. 
Second, phosphorus can reduce the absorption of iron by livestock and poultry organisms. Therefore, when adding iron to livestock and poultry, it is not advisable to add too much bone powder and calcium hydrogen phosphate. 
3. Magnesium will reduce the absorption of phosphorus by livestock and poultry organisms. Therefore, when adding phosphorus to livestock and poultry, do not add too much magnesium oxide and magnesium sulfate at the same time. 
Fourth, feeding calcium, magnesium, iron, aluminum and other trace element additives, can not use oxytetracycline at the same time, so as not to affect the absorption of trace elements in livestock and poultry. 
5. There is an antagonistic effect between zinc and calcium. Therefore, when adding zinc sulfate to the feed, it is not advisable to add too much calcium. 
6. Compounds containing iron, zinc, copper, manganese, iodine, etc., should not be mixed with vitamins A, K3, B1, B6 and folic acid.
The present invention provides a multifunctional pull faucet, comprising: a faucet body, a drawing part is provided at the water outlet port thereof, and the drawing part is connected to a main channel, wherein at least three are provided in the faucet body A branch channel, and the three branch channels are all connected to the main channel. A multifunctional pull faucet provided by the present invention, wherein the hot water channel, the cold water channel and the water purification channel (pure water channel) are all connected to the main channel , And the main channel is connected with the drawing part on the main body of the faucet, so that the drawing part can obtain the water quality (hot water, cold water, purified water or pure water) required by different users, thereby improving the user experience, and , By integrating the hot water channel, cold water channel and pure water channel (pure water channel) into the main channel, the internal structure of the faucet is simplified, and the production cost of the faucet is reduced.
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