The licking block of raising livestock salt takes salt as carrier, is produced by suppressing with the pressure 150Mpa/m2 the various trace elements in mineral substance, which is needed by domestic animals. After domestic animals freely lick the block, it obtains the comprehensive trace elements in mineral substance every day, and the routine feeding cannot provide such trace elements. The licking block is high dense, hard like stone, and can adapt to various extreme climates, and it can stand wind blowing, exposure to sun, and rain showering. The licking block is too tough to be gnawed by domestic animals, so the licking amount is possible to be under control effectively, both guarantees the daily needed ingestion quantity for mineral trace elements and does not have the waste, there is no need for manual control, so truly realizes food licking freely, and cultivating persons do not have to hold specialty knowledge to apply freely and obtain enormous benefit. The practice proves that after licking the block containing various relative complete mineral substances, the domestic animals enhance milk production quantity and reproduction rate, and immunity effectively, and promote digestion absorption, enhance the use ratio of feedingstuff.
The salt licking block with brand Chinasalt for raising livestock fully increases various mineral trace elements according to actual situation, it is suitable for Chinese national condition, and enhances milk production quantity, reproduction rate, and immunity effectively. Table 1 shows each kind of trace element content.

Table 2  The indices of the product’s physics and chemistry
 Cow type Beef Type
Na            %≥ 24 38
Ca         mg/kg≥ 4% 2000
P           mg/kg 3% 2000
Fe         mg/kg≥ 1300 1300
Ca         mg/kg≥ 2000 800
Mn        mg/kg≥ 2300 800
Zn         mg/kg≥ 800 800
I          mg/kg≥ 50 50
Se         mg/kg≥ 20 30
Co        mg/kg≥ 50 60
Mg        mg/kg≥ 5500 4500

The classification and applicable scope of salt licking block with the brand Chinasalt for raising livestock:
The salt licking block with the brand Chinasalt is divided into three big kinds, namely, cow type, beef cattle type, and young animal type.

The salt licking block of cow type is suitable for:
A. The cows with high production, the cows with low success ratio on breeding;
B. The cows with the pregnancy disease or reproduction flaw;
C. The cows with low milk quantity;
D. The cows with pica
The salt licking block of beef cattle type is suitable for:
A. beef cattle, bull stock, horse, fabric goat, camel;
B. the cow with medium milk quantity;
C. the cow with rough wool color or non-gloss;
D. the cow with low immunity or easy to be sick
The salt licking block of young animal type is suitable for each kind of young animals.