Acidifier has the characteristics of no residue, no drug resistance, no toxic side effects, etc., and has attracted more and more attention from animal husbandry producers. Acidifiers can improve the digestion and utilization rate of nutrients such as protein and minerals in the diet, and at the same time have the effects of inhibiting bacteria, regulating the intestines, and promoting health and growth. They are increasingly becoming one of the products that replace antibiotics.
Classification of acidifiers
Acidifiers can increase the acidity of feeds. In the form of liquid or powder, they can be combined with water or feed to improve the digestive tract environment of animals to meet nutritional needs and disease prevention needs after ingestion. Acidulants were originally used as flavor additives to improve the palatability of feeds. With the deepening of research, it is found that feed acidifier also has the characteristics of reducing pH and acid binding capacity in drinking water and feed, and at the same time increasing the activity of digestive enzymes in the digestive tract. has an activating effect. Acidulants also have a certain maintenance effect on the intestinal microecological balance, reduce the occurrence of diseases, and also promote the digestion and absorption of nutrients such as protein.
Application direction: environmental disinfection, waterline disinfection, disease resistance, prevention, health care and growth promotion
Type: solid acidifier (powder), liquid acidifier, fermentation acidifier
Usage: drinking water use, mixing use
1. Inorganic acidifier
Phosphoric acid, hydrochloric acid and sulfuric acid are the main types of inorganic acidifiers, among which phosphoric acid is the most used.
Inorganic acid has the characteristics of low price, strong acidity, and rapid decomposition, which can accelerate the reduction of pH in the digestive tract when used.
(1) It will cause burning of the esophagus and stomach, inhibit the secretion of gastric acid, and affect the normal function of the stomach;
(2) Inorganic acids mainly cause pH changes in the stomach and have less effect on the intestinal tract. Therefore, the bacteriostatic effect of the use of inorganic acids is very limited, and it may also have an inhibitory effect on the normal function of the stomach;
(3) Inorganic acids also have a certain impact on the electrolyte balance in the diet. When the electrolyte balance in the diet is destroyed, it will cause the animal feed intake to decrease and increase the production cost;
(4) The amount of inorganic acid added should not be too high. High doses will corrode feed processing machinery and seriously damage the oral mucosa of animals.
Organic acidifiers are mainly divided into macromolecular acids (such as fumaric acid, citric acid, malic acid, etc.) and small molecular acids (such as formic acid, acetic acid, propionic acid, etc.) and their salts. Although the price of organic acidulant is higher than that of inorganic acid, it is widely used in production because of its good palatability, strong bacteriostatic effect, and good effect on animal growth performance.
2.1 The role of macromolecular organic acids
It indirectly affects the intestinal microflora mainly by affecting the pH in the gastrointestinal tract, which promotes the proliferation of beneficial bacteria and reduces the number of harmful bacteria. The effect of this type of organic acid is mainly in the stomach, and has less effect on the small intestine, and because the relative molecular mass is relatively large, the hydrogen ions released per unit weight of acid molecule are relatively small, so the effect on pH reduction is not as good as that of small molecular organic acids. acid.
2.2 The role of small molecular organic acids
Mainly by reducing the pH in the environment, inhibiting Gram-negative bacteria. Because it can destroy the bacterial cell membrane, interfere with the synthesis of bacterial enzymes, thereby affecting the replication of bacteria, and ultimately play the role of anti-gram-negative bacteria.
3. Compound acidifying preparation
Compound acidifier refers to the combination of two or more than two single acidifiers in a certain proportion. Multiple acids can be selected to be combined together, or acids and salts can be selected to be combined together. Due to the combination of various acid components, the composite acidifier can play a good synergistic effect in use and also promote production. Because the composite acidifier avoids the shortcomings of single acidifier, such as single function, large addition amount and strong corrosiveness, the composite acidifier replaces the single acidifier and promotes the application of the acidifier.