USA Lysine® Resources

Why Lysine?


Metabolizable Energy and Metabolizable Protein Requirements Overview

ME and MP requirements thumbnail of literature

Metabolizable energy (ME) and metabolizable protein (MP) requirements of a dairy cow are influenced by production level, lactation number, body weight and breed. The following data provides a guideline for ME, MP Lysine and MP Methionine required by cows in various situations.

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A Closer Look: MP Lysine for Dairy Cattle

A Closer Look: MP Lysine for Dairy Cattle USA Lysine® E-Book

This e-book provides an in depth look at lysine and how this essential amino acid can help achieve maximum milk production to lower break-even costs and increase profit. A Closer Look: MP Lysine for Dairy Cattle helps readers understand how the variability in the quality of the byproducts and commodities often used to meet MP Lysine requirements, such as blood meal, can impact the amount of MP Lysine available to the animal, which affects the operation's bottom line. Additionally, it assists with comparing the characteristics necessary to effectively evaluate rumen protected lysine sources. These issues, and possible ways to deal with them, are all addressed in this e-book available for reading online or as a PDF download. Read the e-book, A Closer Look: MP Lysine for Dairy Cattle, and learn how variable your feed ingredients may be, some options for dealing with this variability and what impact they have on profitability.

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Why Rumen Protected Lysine?


Blood Meal Variability Results in Unknown MP Lysine Yield and Cost

Blood Meal Variability Results in Unknown MP Lysine Yield and Cost literature thumbnail

Since 2015, Kemin has worked with customers to evaluate their blood meal supply. During this time, over 70 samples have been evaluated to determine the supply and cost of the MP Lysine contributed by blood meal.

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The Variability of Nitrogen Digestibility in Blood Meal Negatively Impacts Ability to Formulate Diets

Variability of Nitrogen Digestibility in Blood Meal Negatively Impacts Diet Formulation thumbnail

Since 2015, Kemin has collected and tested over 70 blood meal samples from customers across the United States. The nitrogen (N) digestibility of those samples range from 21% to 97%. This means up to 79% of the nitrogen in the blood meal may not be digested by the animal and is simply excreted into the environment.

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The Truth About Blood Meal Variability

The Truth About Blood Meal Variability literature thumbnail

Blood meal is heated and dried while being processed. During this time, Maillard reactions occur binding sugars to amino groups, reducing the digestibility and availability of nitrogen or amino acids such as lysine. It is impossible to determine the extent of the damage without testing in the laboratory.

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What is the Opportunity Cost of Feeding Highly Variable Ingredients

What is the Opportunity Cost of Feeding Highly Variable Ingredients literature thumbnail

Variation in the digestibility of protein and amino acids contained in feed ingredients has a direct impact on production and profitability. One way to evaluate this impact is by determining the opportunity cost (the loss of potential profit) when feeding a poor quality, low digestibility feed instead of a good quality or highly digestible one. Learn more about the impact of variability on your profits.

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Why USA Lysine®?


Evaluation of the Bioavailability of USA Lysine® and MetiPEARL in Lactating Dairy Cows

Evaluation of the Bioavailability of USA Lysine and MetiPEARL literature thumbnail

USA Lysine® and MetiPEARL are manufactured to have a precise specific gravity and particle size leading to rapid transit through the rumen, reducing microbial exposure. These rumen protected amino acid products combine a high level of rumen escape and intestinal release, resulting in bioavailability values making them cost-effective sources of MP Lysine and MP Methionine. 

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Using Plasma Lysine Levels to Validate USA Lysine® Bioavailability

Using Plasma Lysine Levels to Validate USA Lysine Bioavailability literature thumbnail

Two simultaneous studies were conducted to validate the bioavailability of USA Lysine®, a rumen protected lysine product, in dairy cattle. The data indicates USA Lysine® provides a high level of intestinally available lysine. 

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USA Lysine®: Protection Without Waste, Innovation You Can Afford

USA Lysine: Protection Without Waste, Innovation You Can Afford literature thumbnail

Making a purchase decision in today's economic climate requires an in-depth examination of a product's features and benefits. From functionality to price, focusing on one or two characteristics doesn't provide the complete picture—this is especially true when comparing rumen protected lysine products. Learn how to accurately compare rumen protected products.

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USA Lysine®: Bioavailability That Matters

USA Lysine: Bioavailability That Matters literature thumbnail

Research indicates using USA Lysine® to increase MP Lysine supply improves diet formulation and milk component production. 

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USA Lysine® and DDGS Can Cost Effectively Replace a Large Portion of Blood Meal While Maintaining Production

USA Lysine and DDGS Can Cost-Effectively Replace Most Blood Meal literature thumbnail

Blood meal is often used as a source of MP Lysine in lactating dairy diets and is relied upon to help meet the cow's MP Lysine requirements. However, blood meal quality is highly inconsistent. See how the efficacy of USA Lysine® compares to blood meal as a source of MP Lysine and its impact on production.

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Bioavailability Report: Rumen Bypass No Longer Enough

Bioavailability Report: Rumen Bypass No Longer Enough literature thumbnail

Innovation in amino acid nutrition is changing how feed is formulated and dairy cows are fed, improving production and performance. Research shows achieving optimal production requires more than rumen escape. Read why bioavailable lysine provides a more efficient use of protein.

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