How should the daily feed formula of broilers be customized?

（1）Basic steps of ration coordination Find out the feeding standards:


According to different types of chickens of different ages, find out their requirements for various nutrients from the feeding standards, and list the standards in the column. Determine the general ratio of various feeds:

According to actual experience, determine the ratio of various feeds. Refer to the table for reference to reference ratios. To calculate the main formula ratio of the main nutrients, first calculate the main indicators such as metabolizable energy, crude protein, lysine, methionine cystine and so on. After determining the general ratio of various feeds, the four main nutrients, such as large gaps, should be calculated.

Recipe adjustment:

After the ratio adjustment, all the main nutrients are very close to the feeding standard. Finally, human inorganic salt feed, trace elements and vitamins are added to reach the full price standard.


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（2） Examples of ration coordination methods

At present, large-scale chicken farms use the differential method of self-raised chickens. The basic steps of the difference measurement method combined with grain are explained by examples. Taking corn, sorghum, wheat bran, soybean cake, fish meal, alfalfa meal, stone meal, bone meal, salt and additives as examples, 7-18-week-old chicken diets were prepared.

Determine the nutritional requirements of the broiler based on the breed selected for the broiler breed. Select high-quality, easy-to-obtain and low-cost feed ingredients, refer to the list of feed ingredients and nutritional values, and list the nutritional ingredients and contents of various feeds.

For example, 63.8% 63.8%, wheat bran 10%, soybean meal 6.0%, fish meal 8.6%, alfalfa meal 3.0%, mineral meal 8.2%, salt 0.4%, metabolizable energy 11.19 trillion coke/kg, crude protein 16.03%. Reach the metabolizable energy index of 11.7mgajo/kg, crude protein index of 15%, adjustable corn 69.0%, wheat bran 1.0%, soybean meal 9.5%, fish meal 4.0%. To achieve a calcium index of 0.9% and a total phosphorus index of 0.6%, it must be combined with human bone meal of 0.61% and stone powder of 2.7%. To meet 0.61% methionine cystine, human methionine additives are required. Add vitamin additives and trace element additives according to the instructions.

The basic feed formula adjusted by calculation is: corn 69.0%, wheat bran 11.0%, soybean meal 9.5%, fish meal 4.0%, dry alfalfa meal 2.69%, stone meal 2.7%, bone meal 0.61%, salt 0.4%, methionine additive 0.1%. The main nutritional indicators are: metabolizable energy 11.80maj/kg, crude protein 15.0%, calcium 3.5%, total phosphorus 0.60%, methionine 0.32%, lysine 0.76%, methionine 0.61%. These main indicators are basically in line with feeding standards.

Practicality analysis: According to the local feed raw material price, calculate the daily grain cost, estimate the use effect, and determine the use value of the formula. If the feed formula is feasible, it can be fed, if the effect is good, it can be used in large quantities; if the effect is not good, the reasons can be analyzed and adjusted.