{"id":3501,"date":"2026-10-17T09:00:00","date_gmt":"2026-10-17T09:00:00","guid":{"rendered":"https:\/\/ndrgkokalenterprise.com\/?p=3501"},"modified":"2026-10-17T09:00:00","modified_gmt":"2026-10-17T09:00:00","slug":"ideal-protein-pigs-lysine-ratios","status":"publish","type":"post","link":"https:\/\/ndrgkokalenterprise.com\/zh\/ideal-protein-pigs-lysine-ratios\/","title":{"rendered":"Ideal Protein for Pigs: Lysine Ratios for Threonine, Methionine and Tryptophan"},"content":{"rendered":"
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Quick answer:<\/strong> The ideal protein concept expresses each essential amino acid as a percentage of lysine, the reference amino acid for pigs. Typical growing-pig ratios on a digestible basis are roughly threonine 65%, methionine plus cystine 60% and tryptophan 18% of lysine. Formulating to these ratios with synthetic amino acids lowers crude protein, cost and nitrogen waste.<\/p>\n

Updated October 2026 \u00b7 NDRG Kokal Enterprise, Sarawak, Malaysia<\/em><\/p>\n<\/div>\n

Key facts<\/h2>\n\n\n\n\n\n\n\n\n
Reference amino acid<\/th>\nLysine (100%)<\/td>\n<\/tr>\n
Threonine<\/th>\nAbout 65% of lysine<\/td>\n<\/tr>\n
Methionine + cystine<\/th>\nAbout 60% of lysine<\/td>\n<\/tr>\n
Tryptophan<\/th>\nAbout 18% of lysine<\/td>\n<\/tr>\n
Basis<\/th>\nStandardised ileal digestible (SID)<\/td>\n<\/tr>\n
Benefit<\/th>\nLower protein, cost and nitrogen<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

What is ideal protein?<\/h2>\n

Pigs need amino acids in a specific balance. Instead of listing absolute amounts for every stage, nutritionists set lysine first and express other amino acids as ratios. When lysine changes with age or genetics, the others follow automatically.<\/p>\n

Typical ratios (growing pigs, SID basis)<\/h2>\n\n\n\n\n\n\n\n\n\n
Amino acid<\/th>\nRatio to lysine<\/th>\n<\/tr>\n<\/thead>\n
Lysine<\/td>\n100%<\/td>\n<\/tr>\n
Threonine<\/td>\nAbout 65%<\/td>\n<\/tr>\n
Methionine + cystine<\/td>\nAbout 60%<\/td>\n<\/tr>\n
Tryptophan<\/td>\nAbout 18%<\/td>\n<\/tr>\n
Valine<\/td>\nAbout 65\u201370%<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Ratios vary between guidelines and production stages; use your nutritionist\u2019s or genetics supplier\u2019s values.<\/p>\n

Putting it into practice<\/h2>\n