Premix is to mix vitamins, trace elements and amino acids in a certain proportion and add them in a certain proportion when preparing feed.
Premix accounts for a small proportion in feed, but it plays a great role and is the core of compound feed.
There are 0.5%, 1%, 2%, 3% and 5% series in the market.
(divided into brooding period, breeding period, laying period, etc.)
Main differences: nutrient composition, nutrient concentration, price! !
0.5% ~ 1% premix, mainly composed of vitamins, trace elements, amino acids, drugs and non-nutritional additives, carriers and others;
3% ~ 5% premix is based on adding calcium hydrogen phosphate, salt and a small amount of stone powder.
If the chicken farm has its own feed processing equipment, it can be purchased from reputable manufacturers.
1% ~ 2% premix saves the trouble of buying multi-dimensional and trace elements, and the quality of the prepared feed is also guaranteed.
(key! If it is not convenient to buy raw materials, you can directly buy 3% ~ 5% premix to prepare complete feed. )
Second, concentrate materials.
The concentrate is made by mixing protein, minerals, trace elements, vitamins and non-nutritional additives in a certain proportion.
When it is used, it can become a complete compound feed to meet the nutritional needs of laying hens as long as it is mixed into energy feed made of corn, bran, sorghum, barley and other raw materials in a certain proportion.
Third, full-price materials.
Complete feed is a compound feed that can be directly fed to laying hens after purchase. It contains a variety of nutrients with high content and appropriate proportion, which can meet all nutritional needs of laying hens.
At present, most farmers think that complete feed is not as good as concentrated feed, and concentrated feed is not as good as premix, mainly considering factors such as cost and feed quality. ? Therefore, the premix on the market now has high cost performance and high nutritional value ~ which is the best choice!
And premixed feed? It is a homogeneous mixture made up of many kinds of additives of the same type or different types according to a certain proportion.
Premix has the following characteristics:
① The composition is complicated. Good quality premix generally includes 6 or 7 kinds of trace elements, 15 kinds of vitamins, 2 kinds of amino acids, 1 ~ 2 kinds of drugs and other additives (antioxidants and mildew inhibitors, etc.). ), and the nature and function of various feed additives are different, and the compatibility relationship is complex;
② Less dosage and great effect. Generally, the proportion of premix in compound feed is 0.5%~5%. Although the dosage is small, it plays a great role in improving animal production performance, improving feed conversion rate and preserving feed.
③ Can't feed directly. The concentration of effective components of additives in premix is very high, which is generally tens to hundreds of times the amount needed by animals. If fed directly, it is easy to cause animal poisoning.
Premix has four main functions:
(1) The trace components of the additive can be evenly distributed in the compound feed;
(2) Pre-mixing process is used to compensate and improve the non-ideal characteristics of trace components such as instability, water absorption and electrostatic adsorption.
③ Standardize the addition level of additives;
④ Simplify the production process of general feed processing plants and reduce investment.
2. The use of premixed feed
1. Correctly understand the efficacy of premix
Under the condition of intensive scale feeding, animals must provide full-price compound feed. In order to prepare complete compound feed, premix is essential. First of all, we should consider the nutritional indexes such as crude protein, essential amino acids, energy, calcium, phosphorus, sodium and chlorine in the diet, and then combine with scientific and reasonable premix. Only in this way can it play its role in improving animal production level, reducing feed consumption and health care. In order to distinguish the functions of various nutrients in animal nutrition and their relationships, we should not overemphasize the nutritional and physiological functions of premix, and only when the main nutritional indicators in the diet are reasonable can the functions of premix be shown.
2. Reasonable selection of premix
The premix sold in the market is mixed, and some of them have problems such as unqualified quality and unreasonable formula. When buying, you must proceed from reality and choose to use premix according to your own feed raw materials. If there is only energy feed raw material, you should choose full nutrition concentrated material; If there are both energy feed raw materials and protein raw materials, you can choose the compound premix with the addition of 2%~3%;
If it is a feed factory, you can choose 1%~2% compound premix produced by a professional premix factory or 0. 1%~0.5% high-tech graded premix.
Ready-mixed products produced by manufacturers with strong technical force, complete product specifications, stable quality and thoughtful after-sales service should be selected; According to the types of local agricultural and sideline products, choose the formula type suitable for the types and characteristics of the basic materials you own.
3. Strictly identify the quality
When buying premix, you should first choose the products of regular manufacturers, and carefully check whether the packaging is standardized and the label content is complete. The label shall indicate the following items: product name, application stage, main components, types and contents of pharmaceutical additives, addition ratio, instructions for use, production date, shelf life, implementation standard, approval number, name, address and telephone number of the manufacturer, etc. It is also necessary to make a sensory judgment on product quality. Qualified premixes should have basically the same particle size, uniform color and no peculiar smell, mildew, moisture absorption and caking.
4. Explicit use of objects
When using premix, special premix should be selected according to the varieties and different growth stages of livestock and poultry, and the varieties and applicable stages indicated on the label should be carefully examined.
5. Accurate dosage
Should be fully mixed with other feeds according to the instructions, generally used for premix.