Vitamins are essential substances for maintaining the normal physiological functions of animals. If any kind of vitamin is lacking in chicken feed, it can easily lead to certain diseases. Through the practice of chicken production in various places in recent years and experimental research conducted by scientific research departments, it has been confirmed that the main reasons for the lack of vitamins in chicken feed are as follows.
First, the improper mix of feed due to different vitamin content in animals and plants, such as liver, carrots, yellow corn contains more vitamin A; dry yeast and dried hay contains more vitamin D; bean cake (broom), cottonseed Cakes contain more vitamin E; soybeans, cereals, and fish meal contain more vitamin B1 and B2; fish meal, meat and bone meal, and liver contain more vitamin B12. Therefore, in the preparation of chicken feed, should pay attention to a reasonable proportion of feed and pay attention to vitamin balance.
Second, the feed processing process and storage time is too long Various vitamins have time titers in the feed, the stability of most vitamins is 3 to 4 months. So when using feed or adding vitamins, you should pay attention to the effect of storage time.
Third, the different types of feed folic acid, nicotinic acid, biotin and other biological effects in different feeds are different. For example, folic acid is relatively stable in powdered mixed feeds, but it is not stable when combined with trace elements or choline chloride in pellet feeds.
Fourth, the abuse of antibiotics The long-term use of antibiotics, easy to make the chicken intestinal microbial synthesis of vitamins to reduce, resulting in vitamin deficiency. In addition, some vitamins are also affected by factors such as humidity, temperature, pressure, sunlight, pH, trace elements, oxidants, reducing agents and compounds. For example, vitamins A and D are vulnerable to factors such as moisture, high temperatures, trace elements, and rancid fat; vitamin B1 is susceptible to high temperatures, oxidants, reducing agents, and pH.
At present, vitamins produced by domestic vitamin manufacturers have a single product, but at the same time there are also multi-vitamin products. Therefore, when vitamins are used, scientific adjustments must be made based on feed ingredients, environmental conditions, and the nutritional needs of chickens, so that the added vitamins can be fully utilized while satisfying the nutritional needs of chickens, and can also be optimally harvested. The economic benefits.
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