A kind of preparation method of pig feed additive

Abstract

The invention discloses a method for preparing a feed additive, and in particular relates to a method for preparing a pig feed additive. The method comprises the following steps: putting corn citric acid residues in sunshine for drying for 2-4 hours, uniformly mixing the dried corn citric acid residues, fish meal, bone meal, feed fat powder, calcium phosphate, chicken liver meal, shell powder and crab shell powder to obtain the mixture, crushing the mixture, pelleting, and packaging, thereby obtaining a finished product. The corn citric acid residues are rich in provitamin D ergosterol, when the corn citric acid residues are dried in sunshine, under the action of ultraviolet light which is relatively short in wavelength in sunshine, the ergosterol is subjected to chemical change and is converted into vitamin D, and the vitamin D can improve the absorption rate of calcium and phosphorous for pigs, so that the pig acalcicosis can be effectively prevented and treated.

Description

technical field [0001] The invention relates to a production method of a feed additive, in particular to a production method of a pig feed additive. Background technique [0002] Calcium deficiency is a common nutritional and metabolic disease in pigs. The cause is mainly due to poor feeding management, severe lack of calcium, phosphorus and other minerals in the feed, and uneven nutrition in the feed, resulting in insufficient intake of calcium-containing substances by pigs. Calcium deficiency in pigs is very harmful to pigs. In the early stage, it is manifested as loss of appetite, inactivity, picnic, preference for lying on the ground, and fear of crowding. In the later stage, sick pigs lie on the ground and cannot walk, cannot stand, and cannot eat or drink, which causes huge losses to the pig industry. It is a problem worthy of attention in pig production. [0003] Corn citric acid residue is a by-product of citric acid production enterprises using corn to produce citr...

AI Technical Summary

Problems solved by technology

Corn citric acid slag is a by-product of citric acid production. When citric acid is produced, more slag is produced. It is a serious environmental protection problem for places and enterprises that have no other way to use waste slag.