How to Use Corn Wisely in Self-Batching Pig Farms

Corn is known as the king of feed. It is because corn has high energy, with digestible energy around 14.5 MJ/kg, crude protein 8.5%, crude fiber 2.6%, crude fat 5.3%, crude ash 1.3%, nitrogen-free leachate 68.3%, calcium 0.16%, total phosphorus 0.25%, lysine 0.36%, methionine 0.15%. Trace elements: iron 36mg/kg, copper 3.4 mg/kg, manganese 5.8 mg/kg, zinc 17 mg/kg, selenium 0.04mg/kg, carotene 2mg/kg, VE 22mg/kg, VB1 3.5mg/kg, VB2 1.1mg/kg, pantothenic acid 5mg/kg, niacin 24mg/kg, vitamin B610mg/kg, folic acid 0.15mg/kg. Folic acid 0.15mg/kg, biotin 0.06mg/kg, linoleic acid up to 50%. Vitamin B1, niacin and vitamin E are abundant, while vitamin B2, vitamin D and vitamin A are lacking. Corn is the most important raw material in pig feed because it has good palatability and easy to digest.

I. Selection of Corn

1, First of all, make sure the moisture of corn is not higher than 14.5% in the north and 14% in the south, and the corn with too much moisture should be dried or dried before feeding pigs.

2, new and old corn with the use of newly harvested corn is best stored for a month before feeding pigs, so that the large polysaccharides in corn will be converted into easily absorbed starch; because these polysaccharides are not easily digested and absorbed by animals, if fed to new corn will cause diarrhea in pigs.

II. The Indicators of Corn Quality Judgment

1, Moisture content: temperature difference will cause the movement of moisture, high moisture corn is very easy to become the source of mold.

2, Storage: quality gradually deteriorates as the storage period becomes longer and storage conditions are restricted. The quality of storage can be roughly divided into three types of reduction: namely, changes in the composition of the corn itself; mold, insects, rodent contamination produced by toxins and animal use of the reduction.

3, Mold and mold toxin: mold is the first sign of end blackening, and then embryo discoloration, and finally the whole grain of corn into a burnt, mold metabolites are mycotoxins, which are very harmful to livestock. 

4, Broken sex: corn once broken that is to lose the natural protective effect, it is easy to deteriorate. 

5, Capacity: lack of maturity, impurities will reduce the capacity, the lower the capacity, the lower the energy is also low. 

6, Other: germination, heat loss, drying methods, disease spots, adulteration are affecting the quality of good or bad.

III. Feed Processing Points

1, Don't mix too many ingredients at one time, keep it fresh, it is better to use up all the ingredients within one day. 

2, Crushed corn, different growth stages of pigs, corn fineness is different, the standard is as follows.


This requires the crusher in the field can easily adjust the coarseness of the crushed corn, to adapt to the growth stages of different pigs.

It can decompose the mold and toxin in the feed and transform it into protein and amino acid that animals can use, and it does not adsorb the nutrients in the feed to reduce it.

After fermentation, pig manure is a very high quality organic fertilizer. How to turn pig manure into organic fertilizer? Welcome to consult.