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This article mainly introduces the phenomena and economic losses that occur to farmers or breeders when cholecalciferol (vitamin D3) is deficient in animals, and explains the importance of supplementing animals with vitamin D3 from a scientific perspective and the rational addition of cholecalciferol.

Calcium is the main component of egg shell, so to improve egg production, calcium is an essential nutrient. However, calcium supplementation for laying hens is not as much as possible, and attention should be paid to time and dosage. 1. Pay attention to the ratio of calcium to phosphorus: When suppl

Compared with feed additives research that has only been around for decades, our country has a long history of keeping poultry, and laying hens are one of important sources of income. Since laying hens have an important mission to produce eggs, their demand and consumption of vitamin d3 powder are very large, which determines that vitamin d3 plays an important role in layer feed.

The cost of adding additional vitamin d3 to livestock and poultry accounts for a small proportion of the total cost, but good economic benefits can be obtained. In order to avoid adverse effects of vitamin d3 feed additives​ deficiency on the health and production performance of livestock and poultry, additional vitamin d3 powder must be added in actual production. According to related research, this behavior can bring many benefits.