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It is well known that vitamins are a class of low-molecular organic substances essential for maintaining normal physiological functions of animals, and are also essential micro-nutrients for maintaining animal life. Vitamin feed has always been described as necessary, and what benefits it has for livestock animals is something that many people want to know. This article will explore this issue.

Amino acid feed is a widely used feed that is used in poultry, livestock, fish, etc. And it is so widely used because there are many different kinds of the feeds. These diverse amino acid feeds play a variety of roles in our pastures, making our pastures thriving. This article will provide information on the use of the feeds in all livestock animals.

As an important part of animal feed, vitamin supplements are getting more and more attention. However, vitamin feed additives are very diverse, which makes many people feel helpless and helpless, and can not correctly understand vitamin feed. This means that they are prone to errors when they are used, with serious consequences. This article will explain the various vitamin feed additives.

China is a big country in the world for laying hens. The commodity hens account for 40% to 45% of the world's stock. In recent years, the annual output of eggs is about 20 million tons. In the collection, grading, packaging, transportation, storage and processing of eggs, eggs are inevitably affected by external forces, resulting in cracking or cracking of the eggshell, resulting in losses of more than 500 million yuan per year, to producers and wholesalers. The economic losses caused are very large. At this time, the influence of trace elements on eggs is crucial. This paper will review the existing mechanisms of the effects of trace elements on eggshell quality.