Feeding Lysine

April 4, 2019

Lysine is one of the two limiting amino acids in a lactating cow's diet and plays a crucial role in milk production.

 

Feeding lysine

  • 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.

 

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