How to use Vitamin Feed Additives reasonably

Vitamin is the catalyst of biochemical reaction and metabolism of animal body. it is an indispensable micronutrient to maintain the normal physiological function and normal growth and development of animals. If animals lack vitamins, it will have obvious adverse consequences for growth and development. Therefore, vitamins must be added to daily feed to meet the needs of the body.

1. Determination of vitamin feed standards. The standard of vitamin feeding is the demand of animals for various vitamins. The NRC (National Research Council) standard is the most basic requirement for vitamins in animals and can prevent apparent vitamin deficiency. The optimal animal vitamin requirements set by Roche and other professional vitamin manufacturers refer to the addition amount that enables animals to achieve the best health and production performance. The optimal requirement of Roche vitamins is generally several to tens of times higher than the NRC standard, so when designing and applying vitamin additives, the feeding standard of vitamins should be reasonably determined, which is generally higher than the NRC standard. Roche's best demand standard can be used when the conditions permit. It is necessary to consider the influence of many factors, such as feed variety, animal health status, feeding environment, formula cost, storage time and so on, so as to meet the maximum needs of animal growth and development as much as possible. Especially for animals in a state of stress, the vitamin level of feed should be improved.

two。 Appropriate overuse. The stability of most vitamins is not high, and it is easy to cause loss and titer reduction in the process of feed processing and storage. In order to ensure that animals eat enough vitamins, they should generally be added in excess. 3. Choose vitamins. At present, vitamin preparations have a single vitamin and a variety of vitamin premixtures, according to the actual situation, we can determine whether to premix a variety of vitamins or buy multiple premixes. Multi-vitamin premixtures are widely used in small production units. As the detection and quality judgment of vitamins are more complex, we should choose the products of professional manufacturers with good reputation.

4. Pay attention to the effective content, titer and stability of vitamins. Most of the commercial vitamins sold in the market are not pure and 100% potent vitamins. Therefore, when choosing and using vitamins, we should pay attention to their effective content and potency, and convert them reasonably. Different forms of the same kind of vitamins have different stability, such as vitamin A palmitate is more stable than vitamin An alcohol, vitamin E acetate is more stable than vitamin E alcohol. Therefore, stable vitamins should be selected as far as possible in practical application.

5. Pay attention to the independent addition of choline and vitamin C. Because choline and vitamin C are easy to absorb moisture and destroy other vitamins, they are generally not pre-mixed with other vitamins and are added independently when in use. Most of the multi-dimensional preparations sold in the market do not contain choline and vitamin C. if you choose and use multi-dimensional preparations, you should pay attention to adding appropriate amount of choline and vitamin C independently according to the feeding standard.

6. Adjust flexibly according to the actual situation. The feeding standard of vitamins should not remain unchanged, but should be flexibly adjusted according to the actual formula, feeding environment, weather season and other factors, so as to ensure the demand for vitamins and maintain good production performance. For example, laying hens with high calcium and phosphorus feed should appropriately increase the level of vitamin An and vitamin D in order to improve the absorption and utilization of calcium and phosphorus.

7. Necessary dilution and preservation. Due to the low dosage of vitamins and the possible reaction between them and with other additives, it is best to dilute the vitamins by a large 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, dilution should be done to ensure better mixing uniformity and higher titer. The commonly used carrier for vitamin dilution and premixing is defatted corn starch. Vitamin products are sensitive to light and heat and other external factors, and are easy to fail, so they should be stored in a low-temperature, airtight and dry environment. It should be used as soon as possible after unpacking, and the preservation period should not exceed 1 month.

Liu Guoxin, Animal Husbandry Bureau of Yangcheng County, Shanxi Province