- Jin Gan
Lysine is one of the two limiting amino acids in a lactating cow's diet and plays a crucial role in milk production.
Lysine is available to animal through feedstuffs.
Blood meal is one of the more common sources of lysine in the diet.
The rise in price of blood meal is giving producers more reason to look at rumen protected lysine products.
Selecting alternative lysince source is not easy though as not all sources are created equal.
Proper research and evaluation is needed to determine best source of lysine for your herd.
Generally, producers will look at price per ton to determine the lysine source.
However, a better thing to look at would be the cost per gram of metabolizable lysine.
The cost per gram of mLys is deceiving if you only look at cost per ton.
For example, if one source of lysin is 44% mLys, contains 200g per pound and cost $3.37 per pound, it figures out to be $0.017 per gram of mLys.
Another source of lysine is 7.4% mLys, contains 34g per pound, costs $1.43 per pound. However, when you evaluate cost per gram of mLys, it turns out to be $0.031.
With the high cost of blood meal tracking, it is definitely worth looking at alternative lysine sources.