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How to reasonably use vitamin feed additives

Update:29-01-2021

Vitamin is a catalyst for animal body's biochemical reaction and metabolism, and it is a kind of micronutrient that is indispensable to maintain the normal physiological function of the animal and maintain the normal growth and development of the animal. The lack of vitamins in animals will have obvious adverse consequences for growth and development. Therefore, vitamins must be added to the daily feed for the body's needs.
   1. Determination of vitamin feed standard. The vitamin feeding standard is the demand value of various vitamins by animals. The NRC (National Research Council) standard is the most basic requirement for vitamins in animals, which can prevent obvious vitamin deficiencies. The optimal requirements for animal vitamins formulated by some professional vitamin manufacturers such as Roche refer to the amount of supplements required for the animals to obtain the best health and production performance. The optimal vitamin requirement of Roche is generally several to several tens of times higher than the NRC standard. Therefore, when designing and applying vitamin additives, the feeding standard of vitamins should be reasonably determined, which is generally higher than the NRC standard. Roche can be used when conditions permit. The best demand standard. It is necessary to consider the influence of various factors such as feed species, animal health status, breeding environment, formula cost, storage time, etc., and grasp it flexibly and scientifically to meet the greatest needs of animal growth and development as much as possible. Especially for animals under stress, the vitamin level of feed should be increased.
   2. Appropriate over-application. The stability of most vitamins is not high, and it is easy to cause loss and lower potency during feed processing and storage. In order to ensure that the animals eat enough vitamins, they should generally be added in excess.
3. Choose vitamin preparations. At present, vitamin preparations have single vitamins and multivitamin premixes. According to the actual situation, it can be determined whether to premix multiple single vitamins by yourself or buy multiple premixes. Small-scale production units use more multivitamin premixes. Due to the complexity of vitamin testing and quality judgment, products from professional manufacturers with good reputation should be selected.
   4. Pay attention to the effective content, potency and stability of vitamins. Most commercially available commercial vitamins are not pure products and 100% titer vitamins. Therefore, when purchasing and applying vitamins, attention should be paid to their effective content and potency, and reasonable conversion. Different forms of the same type of vitamin have different stability. For example, vitamin A palmitate is more stable than vitamin A alcohol, and vitamin E acetate is more stable than vitamin E alcohol. Therefore, stable vitamins should be used as much as possible in practical applications.
   5. Pay attention to the independent addition of choline and vitamin C. Since choline and vitamin C are easy to absorb moisture and destroy other vitamins, they are generally not pre-mixed with other vitamins, and then added separately during use. Most of the commercially available multi-dimensional preparations do not contain choline and vitamin C. If you choose and use multi-dimensional preparations, you should pay attention to adding appropriate amounts of choline and vitamin C independently according to the feeding standards.
   6. Flexible adjustment according to actual situation. The feeding standards of vitamins should not be static, but should be adjusted flexibly according to the actual formula variety, feeding environment, weather and seasons, etc., to ensure that animals need vitamins under actual conditions and maintain better conditions and production performance. Such as high calcium and phosphorus layer feed, the levels of vitamin A and vitamin D should be appropriately increased to improve the absorption and utilization of calcium and phosphorus.
   7. The necessary dilution and preservation. Vitamins are used in small amounts and may react with each other and with other additives to destroy the potency. Therefore, it is best to dilute by a larger multiple before application, reduce the concentration, and then premix with other vitamins and additives. Especially when premixed with choline, trace elements and acid-base additives, the dilution work should be done to ensure better mixing uniformity and higher potency. The commonly used carrier for vitamin dilution and premixing is defatted corn starch. Vitamin products are sensitive to external factors such as light and heat and are prone to failure. Therefore, they should generally be stored in a low temperature, airtight, and dry environment. It should be used as soon as possible after unsealing, and the storage period should generally not exceed 1 month.More about:Vitamin Series