The method of selecting layer premix by optimizing formula

What kind of premix is a good product? 1. Is the price of premix as low as possible? 2. Is it better to match the full price as low as possible? 3. The bigger the egg weight, the better the premix? Answer: no, why? Chickens feed on energy, chickens according to the level of feed energy can be more accurate feed intake to meet their own needs, especially white chickens are more obvious. In other words, the chicken premix with the lowest cost is the best premix to meet its own needs. There is no difference between good and bad premix products themselves, and they are designed by different manufacturers according to their own emphasis on selling points: 1. If the full price energy of the product design is low, it is to meet the needs of chickens by increasing feed intake. It is certain that the concentration of nutrients in the premix is low. 2. If the full price of the product is designed with high energy, it can also meet the needs of chickens by reducing feed intake, and it is certain that the concentration of nutrients in the premix will be high. 3. Egg weight is not achieved by increasing the protein content in the full price feed, but by the breed, age and weight of qualified laying hens, but by the hens themselves. Artificially increasing the egg weight by increasing the protein content in the feed is the behavior of killing hens and laying eggs, which will increase the death rate and shorten the maintenance time of the peak period of laying hens. The main indexes for measuring the premix during the laying period: 1, comparing the nutritional indexes such as vitamins and amino acids, we can see the quality of the product design; 2. If the corn addition is less than 64% and the protein raw material addition is more than 24% in the manufacturer's proposed formula, the mixture has high protein, low energy and increased feed intake. 3. To see whether the manufacturer's proposed formula adds wheat bran, if wheat bran is added, the surface price of the feed is cheap, the actual feed intake is large, and the food intake cost is increased. 4. Calculate the daily breeding cost; 5. Whether the intake of various nutrients can meet the needs of growth and production. Daily average egg production of laying hens: 57.5 grams per day energy: 315-320 calories; crude protein: 17.5-18 grams; methionine: 460-480 mg Calcium: 3.6-4 grams Note: if the egg weight is higher or lower than 57.5 grams, the daily energy requirement of laying hens also increases or decreases proportionally. Calculation method of daily feed cost during laying period 1. Calculate the number of chickens with energy content of 1 kg feed, such as: 2728 kcal / kg / 320 kcal / day = 8.52. calculate the daily feed intake of 1000 grams / 8.52 chickens = 117.3 grams / day 3, calculate the daily feeding cost of 117.3 grams / 500 (g / jin) X 1.143 yuan / jin = 0.268 yuan / day, calculate whether the daily nutritional needs can be met: 1. Protein: 117.3 g X15% 117.3 g (standard 17.5g-18g / day) 2, methionine: 117.3 g X0.42%X1000 (mg / g) = 487mg (standard 460mg / g) 3, calcium: 117.3 g X3.4% 4g (standard 3.84g) summary: the above three indicators can meet the daily nutritional needs of each chicken. Through the above calculation, which kind of product has the lowest feed cost will choose which kind of premix product. Important note: use the premix product strictly according to the large material formula provided by the manufacturer. Because the premix composition of each product is designed according to the large material formula provided by it, the content of various nutrient elements in the premix is designed, and unauthorized changes bring losses to yourself! It is a virtue for everyone to communicate, express their opinions, learn from each other and reply. -it's practical and practical. -it's a good analysis. I'm learning.-I'm going to study hard! -the calculation method of the landlord is very good. I have learned.-Thank you, I have learned. The landlord is a master! -passing by to study, thank you, landlord! -Mr. xmvet [ts] mihaisun added the following [/ ts] good posts at 17:23 on 2009-8-17. -easy to paste, but not their own major, or do not understand ah-learn-"strictly according to the manufacturer's large formula to use premix products." Support this view. -very good, very practical, novel point of view. Take a look at it, copy it and study it slowly.