Rumen protected lysine is more attractive than a by-product or commodity such as blood meal. Variations in blood meal quality impact the amount of metabolizable lysine (MP lysine) available to the animal, which can result in requirements not being met and negatively impacted performance.
Simply stated, you don't get what you paid for.
A Maillard reaction occurs when blood meal is dried. This reaction chemically binds some of the lysine to sugars in the blood meal. Even though the lysine is still present, it is now unavailable and cannot be used by the cow. Learn more by watching the Maillard Reaction video.
As shown in the video, a Maillard reaction can negatively impact the amount of MP lysine supplied by blood meal. Computer software cannot account for feedstuff variability, leading to unmet MP lysine requirements. So the question is, "Are you actually supplying what your formulation software calculates?" A half-pound of high-quality blood meal should provide approximately 20 grams of MP lysine. As the figure below shows, average-quality blood meal provides 10 grams less MP lysine than good-quality blood meal. Which one are you feeding?
The following figure shows test results of blood meal samples from 11 different suppliers. There was no visual difference between these samples. The total lysine is fairly consistent across samples. The variability occurs when you look at MP lysine, which is the amount that is actually available to the cow. Three things to remember about blood meal:
Learn more about the variability of the blood meal supply by downloading the following PDFs:
It's common knowledge that blood meal is variable. The question is, "How variable is it?" Kemin is continually analyzing our customers' blood meal samples to answer this question. Learn how unpredictable blood meal is by watching the Blood Meal Variability video.
Eliminating blood meal not only helps minimize variability but it can open up space in your diet. Approximately 23 grams of USA Lysine supplies the same amount of MP lysine as 0.5 lbs of blood meal. This means your cows have a consistent supply of MP lysine and you have the ability to save money, improve your diet, or possibly both.
Replacing blood meal with USA Lysine:
Deciding to rely on blood meal as a source of MP lysine creates a variety of opportunities. Watch the Fill The Gap video to learn more about these opportunities.
Download and read "What is the Opportunity Cost of Feeding Highly Variable Ingredients" to learn more about the economic impact that feed ingredient variability has on production and profit.