Contact Us

Zhejiang Yaofi Bio-Tech Co.,Ltd

Add: No.926 Changhong East Road, Wukang Deqing, Zhejiang

Contact us: Catherine Wu

Fax: +86-572-8012737

Mobile: +86-572-8435678


The Balance Of Amino Acids Brings Endless Opportunities

- Jul 23, 2018 -

The balance of amino acids brings endless opportunities

In the past 30 years, a great deal of effort and research has been carried out to improve the protein needs of dairy cows. Thus, an increasing understanding of the demand for cattle has led to the recognition of two sets of protein requirements; rumen degradable protein (RDP) and rumen non-degradable protein (RUP), and metabolic bovine-to-individual amino acids (AAs) rather than metabolic proteins (MP). It has specific requirements.

Amino acids are the cornerstone of milk and body proteins and are considered to be one of the most important nutrients in dairy cow nutrition. Many of these amino acids need to be replenished in the diet because they cannot be synthesized in sufficient quantities to meet the requirements of high-yielding dairy cows. Therefore, these amino acids are called essential AA.

Insufficient supply of these essential AAs limits the protein production of milk and milk; therefore, they are referred to as limiting AA. In most feeding methods, methionine (Met) and lysine (Lys) are considered to be the first and second restricted AA of lactating cows, respectively. This is basically correct because the feed protein has a lower Met and Lys concentration than the concentration in milk and microbial proteins.


If dairy nutritionists and producers are willing to adopt this concept and apply it as much as possible, the benefits of balancing amino acids are endless. Photo: Kemin

The AA available for the gut comes from 3 sources:

  1.Microbial protein


  3. Endogenous protein

Collectively, these sources of protein are known as metabolizable proteins. Therefore, the ration of dairy products should be formulated so that the MP has AA characteristics consistent with AA maintenance, growth, lactation and reproduction requirements.

Balance the benefits of amino acids

In terms of protein nutrition, balancing the AA dairy ratio rather than the percentage of crude protein (CP%) is the most advanced method. Balanced AA's dairy blending allows for more precise feeding, so cows can achieve maximum performance without excessive protein intake. If dairy nutritionists and producers are willing to adopt this concept and apply it as much as possible, the benefits of balancing AA are endless. Milk production, reproduction and improved animal health will exceed any additional costs.

The benefits of balancing AA include:

  1. Enhance milk performance.

  2. Improve the utilization efficiency of metabolic proteins.

  3. The incidence of metabolic disorders has decreased.

  4. Improved the fecundity of dairy herds.

  5. The increase in casein content increases the profitability of cheese production.

How to reach the target formula level of Lys and Met in MP?

When balancing AA's dairy rations, nutritionists are encouraged to consider the following recommendations to maximize milk composition and MP utilization:

1. Drugs should be formulated to maximize the synthesis of microbial proteins because microbial proteins have excellent characteristics of basic AA that match the AA profile of milk proteins.

2. Maximizing microbial protein can be achieved by synchronizing the availability of readily fermentable carbohydrates with sufficient but not excessive RDP. Overfeeding RDP may exceed bacterial requirements, and ammonia produced in the rumen can reduce the flow of microbial proteins to the small intestine.

3. Balance the ratio of the correct target levels of Lys and Met and maintain the recommended ratio of Lys to Met (depending on the nutritional model followed).

4. Provide high quality high Lys protein supplements to achieve the recommended Lys levels in MP. However, the recently released rumen-protected Lys product can be used to partially compensate for the lack of Lys from feed without overfeeding RUP, making it possible to achieve the target recommended Lys level.

5. Feed rumen protection Met reaches the amount required for MP to reach the target level without overprovision of total MP. For dairy nutritionists, it's important to remember that rumen-protected lysine and soy are not feed additives, but essential nutrients, so they should be used in formulas to meet the best Lys and MP. Met level.

Get the right support

As you can see, balancing amino acids in your diet is not that simple. Therefore, it is also important to choose an experienced consultant while choosing the highest quality product. This person/company should be able to provide ongoing support and take action based on changing market conditions. The Kemin Amino Acids program is supported by data-driven research using complex models that are validated in three steps:

Step 1 - in the lab

Step 2 - In animals

Step 3 - in dairy farms and industry.


Table 1 shows meta-analysis data for successful Kemin amino acid program implementation (due to rumen-protected methionine 1 /lysine 2 supplements and technical knowledge, dietary balance in Met and Lys) versus control (no amino acid balanced diet) ratio. Table 2 shows meta-analysis data for Kemin lysine supplementation 2 and control (no amino acid balanced diet or only Lys-derived Met balance without any rumen protection).



The Kemin Lifelong Learning Program ensures that customers get the best solution for every market situation. The strong support of Kemin experts guarantees the highest return on investment.

  • Rumen Protected Vitamins For Cows
  • Methionine In Ruminants
  • Yeast Extract Of 10% Nitrogen
  • Contained Arsenic Yeast Extract
  • Factory Supply Best Quality Zinc Enriched Yeast
  • Animal Feed Additive Rumen Protected Lysine Products Feed Grade Coated Lysine for Ruminants

Related Products