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The Benefits Of Adding Methionine And Lysine To Diet

- Apr 23, 2018 -

The benefits of adding Methionine and Lysine to diet

Essential amino acids (AA) can’t be synthesized by animals and therefore must be added to the diet. Limiting AA is defined as those that are contained in the diet at lower level when compared with animal tissue requirements. Methionine (Met) and lysine (Lys)  are considered to be the first and second limiting AA of lactating cows, respectively, in most feeding practices.

If dairy dietitians and producers are willing to adopt this concept and apply it as much as possible, the benefits of balancing Lys and Met are endless. All these benefits can be summarized in 6 aspects:

1.Enhances milk performance independent of the production level

2. Improve the efficiency of the use of metabolizable proteins and have the opportunity to formulate diets with lower CP content without affecting the yield of milk and milk components

3. Reduce the occurrence of metabolic disorders

4.Essential for energy metabolism being carnitine precursors, since both are required for fatty acids ß-oxidation and precursor for apolipoproteins synthesis and needed for VLDL production

5. Improve the fertility of dairy herds

6. Improve cheese production profitability

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Met and lysine (Lys) are considered to be the first and second limiting AA of lactating cows, respectively, in most feeding practices.

Raising dairy product quality

The milk protein content is very important in cheese production, but only 94% is the real protein in milk. Casein content of milk protein is about 81%, and the rest is whey protein. Balancing amino acid diets can increase milk protein content and automatically increase cheese production. In addition, there is strong evidence that a balanced diet can improve the casein content of milk proteins. Therefore, there is a double positive effect on cheese production. Cheese production is the quality of cheese produced from a given amount of milk.And various recipes have been developed to estimate the yield of different types of cheese, but all of these are related to the proportion of cheese.The effect of amino acid balance on milk protein and casein content has been studied in different trials and studies over the past few years. MナZnek (2013) showed that rumen protection (RP) Lys and Met had a significant positive effect on milk fat, milk protein, and casein content, milk protein content increased 0.11%, milk fat content increased 0.11%, milk protein The content increased by 0.11% + casein/protein ratio was 0.9%. This is important not only for cows but also for small ruminants.

Positive influence on milk yields

In some areas, goat and ewe milk cheese production is the largest part of total cheese exports. Therefore, it is important to understand that using ruminal protection AA.And it can improve the cheese production and increase the percentage of milk protein (0.2 to 0.5% respectively) and of the casein (0.3 to 0.5%, respectively).The availability of Met and Lys can be increased by supplementing the diet with RP Lys and Met.Which may positively increase the amount of milk and affect milk protein and casein production. Another way to increase cheese efficiency with this strategy is to reduce the number of somatic cells. The involvement of the farmers and the dairy industry in cheese processing can benefit from the balance between the AA and the Kemin Amino Acid Program (KAAP).

Data-driven research

With the choice of the highest quality and intestinal bioavailability products, it is very important to choose an experienced supplier. RP AA suppliers should be able to provide continuous support and act according to changing market conditions. KAAP rumen-protection supplements are backed by data-driven research, using complex models validated in a three-step process: Step 1 - in the lab; Step 2 - in the animal and Step 3 - in the dairy farm and industry.

Figure 1 shows a meta-analysis of the 2017 KAAP implementation and the control group (non-amino acid balanced diet) in 2017. With the continuous increase in feed prices and milk production costs, the use of KAAP's low crude protein content diet reformulation can increase dairy cows milk production, thereby increasing milk production of dairy cows

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Figure 1 - Kemin amino acid programme effect: Meta-data 2017 onmilk production, milk components and on return on investment.Percentage of increase / decrease vs control group

 

 


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