The premix contains various vitamins, amino acids, trace elements, etc. necessary for the growth and development of livestock and poultry as well as reproduction of offspring. According to the scientific formula, high-quality raw materials are selected, and after scientific processing, they become full-priced feeds, and their nutrient compositions and use effects are similar to similar full-price feeds. The use of 1%-5% premix to formulate full-priced feed can effectively reduce the cost of production while ensuring quality. Especially in the case of local bulk feed ingredients, it is of great practical significance to promote the use of premix. Selecting manufacturers and brands There are many brands of premixes, and the quality varies. The kind and quality of the drug additives in the premixes also vary greatly. Therefore, it is not possible to select the premixes only for the price, but more importantly, the quality. To choose high reputation, good processing equipment, strong technical force, product quality and stable manufacturers and brands. Proper storage of protein, vitamins, amino acids and other components in premixed premixes will result in a gradual decline in potency if the storage time is long, or even mildew (preservative shelf life is usually 3-6 months). If phenomena such as deliquescence, agglomeration, etc. are found, it means that some or all of the deterioration has failed and should be stopped. Therefore, when purchasing premixes, pay attention to the production date and shelf life, and store them in a shady, low-temperature, dry, ventilated place to avoid the destruction of important nutrients. According to the recommended amount, some farmers use the premix as a seasoning, and the amount is not enough. Some farmers use the premix as a panacea and increase the amount of blindly; some use mixed products from different manufacturers. Premixes are added with trace elements, vitamins, and disease-preventing health additives. When used, they should be added according to the recommended amount, otherwise it will cause nutritional imbalance, causing metabolic disorders and even drug poisoning, and will not achieve the desired results. Grasp the quality of feed ingredients The amount of premix is ​​only 1% or 5%, and 95%-99% of the bulk ingredients are feed ingredients. The quality of feed ingredients varies greatly. Some feed ingredients are of poor quality, such as large moisture content, poor maturity, excessive levels of harmful substances, and even the phenomenon of adulteration. The general requirements of feed ingredients: corn: moisture <14%, protein> 8%, correct formulation of aflatoxin compound feed According to the different stages of growth and development of livestock and poultry, according to the premix specification requirements add a certain amount of corn, soybean meal, bran Such as feed ingredients and stone powder, etc., the proportion of added to be accurate, can not be arbitrarily changed, so as not to affect the feeding effect. Some farmers freely change their formulas and increase the amount of protein feeds such as soybean meal. They believe that high protein feed quality is good, livestock and poultry grow fast, and yields are high. The result is often counterproductive. If there is a shortage of certain feed ingredients or due to the price of raw materials, when the formula needs to be changed, it should be adjusted according to the original formula. It is better to ask the manufacturer to test and replace the new raw materials and re-provision. The grain size of the feed crushed should be moderate to ensure that the feed intake of livestock and poultry is consistent with the level of nutrient intake, prevent the occurrence of metabolic diseases, and increase feed remuneration. However, in some areas, the feed raw materials are either too fine or too large. Appropriate particle size for feed comminution: young chicks less than 1 mm, medium chickens more than 1 mm, feed pellets 75%-80% of large chickens should be between 0.5 mm and 3.2 mm (granules are 4.5 mm), 2 mm into chickens - 2.5 mm (granules are 6 mm). Note that the coefficient of variation of the mixing uniformity when mixing the feed is not greater than 10%. At present, many farmers in the countryside only have grinders and no mixers. Therefore, it is difficult to achieve uniform standards for stirring, which severely restricts the application of premixes. The storage time of the feed should not be too long. Some farmers have labor-saving measures. The once-processed feed can be fed for 10 days or even half a month. This way, especially in the mildew season, it is easy to mold, and chickens, especially chickens, eat the mildew. Feed, prone to aspergillosis or aflatoxin poisoning. The feed processed by the farmer should not exceed one week, and the well-matched feed should be stored in a dark and dry place. Scientific feeds have finer powders (usually amino acids, vitamins, trace elements, and pharmaceutical additives) in the feed, and chickens are used to picking pellets to eat, leaving the powders left, resulting in uneven nutrient uptake by chickens. . The solution is to reduce the number of feedings as far as possible according to the size of the chute, so that the chickens will not only eat large feed pellets, but also maintain a good uniformity. Adjust the feeding schedule and empty the feed trough at noon every day to keep the chickens appetite. 2 feeds: one-third of the one-day diet provided in the morning, and two-thirds of the daily feed provided five hours to six hours before turning off the lights. 3 times feeding: the first time the material is put on the second time after “turn on the lightâ€, 5 hours before the “light is turned off†and 6 hours is the third time the material is fed 2 hours to 3 hours before the “light offâ€, although the feed cost is about It accounts for more than 70% of the total feeding cost. The quality and cost of feed directly affect the chicken production level and profit level. However, the tendency to focus only on feed costs while ignoring feed intake and feed compensation should also be avoided. The unit cost of end products is an effective measure of feed value.
YT-T13
YT-T13
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