USA Lysine® Resources

USA Lysine Particle Size and Specific Gravity Results in Rapid Movement Through the Rumen, Leading to Reduced Microbial Degradation and Increased Intestinal Digestibility

Specific gravity and particle size are the primary factors in determining the rumen retention time in dairy cows. USA Lysine® is manufactured to have the precise specific gravity and particle size, which leads to rapid transit through the rumen, reducing microbial exposure. The result is a concentrated product that does not need to be "over protected" to withstand extended retention time in the rumen. USA Lysine has the ideal size and specific gravity, resulting in a combination of a high level of rumen escape with industry leading intestinal digestibility.

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Kemin 2017 AMTS Feedbank Files

Kemin 2017.AMTS_Feedbank

This file contains the information required to accurately formulate diets in the Agricultural Modeling and Training System (AMTS) using USA Lysine® and MetiPEARL. For more information on how to import this file directly into your copy of AMTS, please download and read the FAQ, "FAQ: Instructions for Importing Kemin Rumen Protected Amino Acids Digital Feedbank Files into AMTS formulation software."


FAQ: Instructions for Importing Kemin Rumen Protected Amino Acids Digital Feedbank Files into AMTS formulation software

This document contains the instructions for importing the Kemin 2017.amts_feedbank file directly into your copy of AMTS.

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Why Lysine?

Metabolizable Energy and Metabolizable Protein Requirements Overview

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

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

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

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

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?

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

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

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

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

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

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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Product Specifications

USA Lysine® Spec Sheet

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