The pattern of digestible amino acids! Ask the teachers and Dr. Wang!

Through this meeting, I heard that many professionals advocated the use of digestible amino acids to make recipes, especially laying hens, but I checked some information, including our country's new feeding standards and NRC, there are no nutritional indicators of digestible amino acids, teachers, what did you do when you made the formula? Can you provide students with some information about digestible amino acids and amino acid balance patterns in pigs and birds? Thank you!-- this kind of data is the result of the painstaking efforts of many feed companies. In a word, it is very easy for you to say.

When you have a child, you will understand that it is not easy for your parents. When you are a child, you will take a lot of things for granted. Thank you, Mr. Wang, for your teachings. Where should I start? I also read part of the data, one said that digestible amino acids can be calculated according to 90% of NRC data. Do you think this is reasonable?-- this is a time-consuming and arduous project. I suggest you look for the latest professional books, and at the same time start doing some animal experiments little by little to verify the data in the books. The results you get are available if you want to master such data systematically. I suggest you read again and broaden your mind first. -- you find out the digestion and utilization rate of each amino acid, and then make an insurance factor when designing the formulation. as for the amino acid balance model, you go to your company's formula file to find the best formula of the same variety to see what is the ratio of each amino acid? It should be more balanced, which is the result of the market experiment. I don't think it's necessary to make it that complicated! I wonder if all the experts agree with this point of view?-- agree with the fish version of the point of view-- in the data of the American Soybean Association, Grian Coon is very good, both laying hens and broilers. That's what I made the recipe for, and it was very responsive.

Pig NRC can also be applied, raw material amino acid digestibility data, AMPIG data is very good, it should be said that it is currently the most recognized set of data.

The nutritional indicators of NRC are based on corn-soybean meal diets, with an average amino acid digestibility of 86%. The data of nutritional requirements of digestible amino acids can be obtained by calculation.

If the formula is calculated according to the ideal amino acid obtained from digestible amino acids, it is already very difficult to calculate tryptophan, and the requirements for raw materials and formulation software as well as formulators are relatively high. It is suggested that you can follow this train of thought. Revise the raw material database and formula model step by step, and it will accumulate over a long period of time, which is a long work that cannot be done in one cluster. The feed formula is not necessarily the cheapest, but it must be the most economical, so for a feed factory, such feed promotion work also requires corresponding auxiliary work, such as the training of sales staff, farmers and dealers. -- very good! Support-the information can be downloaded from the website of the Soybean Association.

Http://www.asachina.org/--------------------------------------, may I ask Brother Ma? You can't find Grian Coon and AMPIG data on the Soybean Association website.-- Soybean Association / Technical papers / Poultry Technology Lecture Collection 1996-1999 /

Ideal amino acid ratio and metabolic energy requirement of laying hens

Dr. Craig N.Coon, Department of Poultry, Arkansas State University, USA can download-link as follows:

Http://www.asachina.org/article.php3?id_article=21

Ampig's database is a joint study of Weizhi and the French Academy of Agricultural Sciences, which can be obtained from Weizhi's Beijing office. It's a CD. Tell me a mailbox and see if I can send it to you. It's a little big. Brother Ma, could you send me a copy, yingcheng3322@126.com? Thank you!