Nutrition Notes Use Of DL-Methionine In Holding Late-Finishing Pigs By James Smith, Ph.D., Senior Technical Swine Nutritionist Michael Edmonds, Ph.D., Vice President, Swine and Poultry Nutrition In the event of any market suspension that requires slowing the growth of finishing pigs, pork producers need dependable and economical diets that can reduce growth while maintaining carcass quality. Studies conducted at the Kent Research Farm have resulted in the development of four feeding regimens to reduce feed intakes over a 35 day period through the use of various levels of supplemental Methionine. Regimen 1 – To achieve a daily gain of about 1.5 lb/day, add Methionine at 1% of the diet. Regimen 2 – To achieve a daily gain of about 1 lb/day, add Methionine at 1% of the diet during week 1. Then add 1.2% Methionine during week 2; 1.4% Methionine during week 3, 1.6% Methionine during week 4 and 1.8% Methionine during week 5. Regimen 3 – To achieve a daily gain of about 0.6 lb/day, add Methionine at 2% of the diet. Alternatively, the addition of Methionine at 1.5% of the diet during week 1 followed by 1.7, 1.9, 2.1 and 2.3% Methionine during weeks 2-5, respectively. Regimen 4 – To achieve none or very little gain, add Methionine at 2% of the diet during week 1. Then add 2.2% Methionine during week 2; 2.4% Methionine during week 3, 2.6% Methionine during week 4 and 2.8% Methionine during week 5. Literature CitedEdmonds, M. S., and J. W. Smith II. 2021. Amino acidimbalance with excess methionine in late-finishing pigs: effects on performance and carcass quality Transl. Anim. Sci. 5:1-11. doi:10.1093/tas/txab197. Download PDF Facebook Twitter LinkedIn Related Nutrition Notes Supplemental Chromium in Kent Nexgen Advanced Pig Starters Study Thomas E. Weber, Ph.D., Technical Director, Innovative Solutions Michael Edmonds, Ph.D., Vice President, Swine and Poultry Nutrition, Kent Nutrition Group Chromium is a trace mineral that helps improve the cellular… Read More Supplemental Chromium in Kent Nexgen Advanced Pig Starters Thomas E. Weber, Ph.D., Technical Manager, Innovative Solutions Michael Edmonds, Ph.D., Vice President, Swine and Poultry Nutrition Chromium is a trace mineral that helps with cellular uptake of glucose, which… Read More Development of New Nexgen Advanced 14-25 Mixer Crumble Sflp Thomas E. Weber, Ph.D., Technical Manager, Innovative Solutions Michael Edmonds, Ph.D., Vice President, Swine and Poultry Nutrition In some swine operations, there can be a number of factors involved leading… Read More Want to learn more from KNG research? Give us your email address to be notified when we publish new Nutrition Notes articles.