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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.

The effect of amino acid feed on animal products is undeniable. Protein is a supporter of life activities of organisms, and protein is composed of amino acids, which means that amino acids are the supporters of biological life activities. This shows the importance of amino acid feed for farm livestock. This article will explore the effects of amino acids on different animals.

In recent years, with the rapid development of China's agriculture and animal husbandry, large-scale, intensive farming, aquaculture and feed processing industries are developing at an unprecedented rate. The domestic market is increasingly demanding feed grade calcium hydrogen phosphate. While this brings benefits to some people, some people begin to produce unqualified products to blind consumers. This article will explain in detail the specific information of feed grade calcium hydrogen phosphate.

Amino acids are the basic unit of protein. Protein is the basis of the life of an organism. All components of a living body require protein participation. It can be said that amino acids are closely related to life and various forms of life activities, so the supplement of amino acid feed is particularly important. The relationship between protein and amino acid has always puzzled many people. This article will analyze the relationship between protein and amino acid.