Amino acid requirements for pig diets
These amino acids need to be added to feed, as pigs cannot synthesise them:
Grain-based diets usually do not have enough lysine, threonine, methionine, tryptophan and isoleucine. All 9 amino acids must be balanced for protein synthesis to occur.
The lowest level amino acid in pig feed compared to how much a pig needs is called the ‘first-limiting’ amino acid. Make sure you have enough of the limiting amino acid to get good pig growth.
In most Australian cereal-based diets, lysine is first-limiting.
Recommended lysine values
Items marked with an * are based on reactive lysine as an indicator of availability.
Common protein concentrates
|Protein concentrate||Recommended lysine value|
|Blood meal (ring-dried)||95%|
|Field pea meal (Pisum sativum)||92%|
|Lupin seed meal (L. albus)||50%|
|Meat meal and meat-and-bone meal||70%|
|Skim milk powder||84%|
|Canola* - cold press||74%|
|Canola* - solvent extr.||61%|
|Canola* - expeller||63%|
|Cereal||Recommended lysine value|
|Wheat - sound||85%|
|Wheat - weather-damage||71%|
- Last reviewed: 22 Nov 2022
- Last updated: 22 Nov 2022