The method of adjusting the formula according to the raw material market

The price of raw materials in the market changes rapidly. Due to the lack of professional formulators in pig farms using premix, the formula can not be adjusted timely according to the price of raw materials, which makes it difficult for pig farms to use economical and practical formula feed. Next, I would like to introduce a method suitable for use in pig farms-feed raw material mix proportion approximate replacement method. General premix manufacturers will provide a reference formula, such as: corn 65 soybean meal 26 wheat bran 5 premix 4 total 100 It is such a formula as the basic formula, we can derive a lot of formulas according to the raw material replacement ratio in the following table, (at the same time, according to the replacement ratio in the following table, we can also preliminarily judge whether the price of raw material is suitable to compare with corn or soybean meal)! Pig feed formula commonly used feed replacement scale (energy feed) raw material name replacement ratio briefly describes corn 100 high energy and high digestibility; pay attention to mildew situation flour 20-40 particles are too fine, piglets should be less than 20%, medium and large pigs less than 40% peas 30-6050 kg body weight, up to 30% cassava 33 should not be excessive, otherwise it is easy to be poisoned. Breeding pigs should pay attention to whether corncob is moldy or not. Fresh corncob 60 is matched with oil and fat in time. 5 be careful not to use sweet potato 33 with oil flavor. Potato 33 must be cooked before rice 50 energy is lower than corn. Lysine content is low, fine rice bran 33 crude fat content, easy to deteriorate. It is suitable to use fresh sorghum 50 without astringent varieties to replace more than 80% corn sucrose 5 suitable for suckling pigs and piglets The effect is good, but the cost is high, the crushing of wheat 80 is not too fine, the effect is better when combined with compound enzyme preparation at the same time, wheat bran 25 general basic formula has wheat bran, so generally there is no need to replace note: the replacement ratio in the table is the proportion of replacing corn, and the substitution ratio of other raw materials can be calculated indirectly from their respective ability to replace corn; the same is true in the table below, using soybean meal as the standard protein. Pig feed formula commonly used feed replacement scale (protein feed) raw material name replacement ratio briefly shows that soybean meal 100 as a standard protein blood meal 20 has high crude protein, low digestibility and low isoleucine content; 100 full-fat milk powder with possible disease source has nutritional balance and high digestibility Rapeseed meal (low toxicity) 75 should not be detoxified more than 10%, corn gluten meal 50 should not be selected for pigs with low lysine content and poor palatability, cottonseed meal 33 crude fiber and gossypol should not be used to affect its utilization, unshelled pigs should not be used; breeding pigs should not use fishmeal 100 with good effect, high cost and more adulteration. Flaxseed meal 25-50 contains many anti-nutritional factors, and it is easy to produce soft stool malt root 10 with growth factors. Large meat and bone meal 100 has high digestibility and high utilization rate of calcium and phosphorus. If the quality does not pass the standard, the possible meat meal 100 can be digested and absorbed well, and the possible peanut meal with disease source 50 lysine is low. For pigs with shell, it is not suitable to use soybean 25-40 and must be fried. High energy, multi-use easy to make soft sunflower seed meal 50 lysine low; with shell, piglets should not use distiller's grains 3-7 liquor dregs less than 3, rice wine dregs less than 5, brewer's grains less than 7; distiller's grains quality variation is large, should be less replaced by good use methods: such as formula, corn 65 soybean meal 26 wheat bran 5 premix 4 total 100 If we want to use blood meal in the formula, we can see that the maximum proportion of blood meal instead of soybean meal is 20%, and the maximum dosage of blood meal is 26% × 20% 5.2%, but in order to ensure the stability of the formula, we can choose 4% instead of 4%. Then the adjusted formula becomes: corn 65 soybean meal 22 wheat bran 4 premix 4 total 100. It is worth noting that if the recommended formula contains other ingredients other than corn, soybean meal and wheat bran, it will involve a high limit of replacement. Look at the following formula: corn 65 soybean meal 25 wheat bran 2 cottonseed meal 4 premix 4 total 100. According to the table, blood meal can replace 20% of soybean meal and cottonseed meal can replace 33% of soybean meal, indicating that the effect of cottonseed meal is better than that of cottonseed meal. Therefore, the proportion of blood meal can not exceed the amount of cottonseed meal in the formula (although it is calculated that 5% blood meal can be used to replace soybean meal, but in this formula, the amount of blood meal can not exceed 4%. At the same time, considering that the formula already contains less effective cottonseed meal, so It can be further considered that the amount of blood powder should be less than 4%, and when 2-3% is achieved, it will not affect the effect of the formula.) this method is an approximate replacement method, which requires that the basic formula to be replaced must meet the feeding standards. replacing one or two raw materials within a certain range generally will not break the nutritional balance, but if there are too many kinds of raw materials, it will make the formula nutritional imbalance, remember! If you have any questions, you can leave a message on the forum and I will take the time to answer it! [this post was finally edited by sizhuzi at 22:08 on 2007-9-2]-- good post. Thank you, landlord. The method is simple and feasible. Trouble-- you can think about it, experience. Thank you-- good information, refer to.-- good information. -- good information! It is very worthwhile to learn from @-the experience is very valuable, thank you for your hard work! -- such a large number of replacements are not appropriate-- it is a good thing that some people are thinking about raising pigs. -- the data is good, and then learn and apply, support! A very practical method. Thank you for sharing. These are very useful to our front-line personnel.