As a new type of feed additive, calcium formate is suitable for weaned piglets. The nutritional effect of calcium formate is mainly realized by the formic acid decomposed in the gastric acid environment. It mainly improves the growth performance of weaned piglets in the following ways: 1. Reducing the pH of the gastrointestinal tract is conducive to activating pepsinogen, making up for the lack of digestive enzymes and hydrochloric acid secretion in the stomach of piglets, and improving the digestibility of feed nutrients. 2. Maintain a low PH value in the gastrointestinal tract, thereby preventing the massive growth and reproduction of Escherichia coli and other pathogenic bacteria, and at the same time promoting the growth of some beneficial bacteria Chemicalbook (such as Lactobacillus)! It produces volatile fatty acids in the cecum and nodules that act as antibiotics! In addition, beneficial bacteria such as Lactobacillus can cover the intestinal mucosa! Protect it from toxins produced by Escherichia coli! Thereby preventing diarrhea associated with bacterial infection. 3. It can act as a chelating agent during digestion! It can promote the absorption of minerals in the intestine, improve the energy utilization of natural metabolites, improve the feed conversion rate, prevent diarrhea and diarrhea, and improve the survival rate and daily weight gain of piglets. At the same time, calcium formate also has the effect of anti-mold and fresh-keeping.