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Amino acid imbalance helps reduce swine growth rate

TAGS: Swine
finishing pigs inside production facility National Pork Board
Amino acid imbalance studies provide cost-effective options for swine producers to manage hogs until market conditions improve.

As pork processing plants continue to face pressure to return to full capacity, swine producers need ways to help manage the weight gain of their finishing hogs. In May, Kent Nutrition Group (KNG) shared research findings from a trial that showed that an amino acid imbalance using DL-methionine resulted in finishing hogs experiencing little to no weight gain, with a significant decrease in feed intake.

Building on these results, KNG researchers extended their work with an additional 13-day trial to evaluate corn and low-protein diets with various levels of DL-methionine.

“After our initial trial was completed, we were still waiting to ship our pigs,” KNG vice president of swine and poultry nutrition Dr. Michael Edmonds said. “This situation provided us an opportunity to extend our study and see if we could develop more viable options for holding market hogs.”

In the 13-day trial, various levels of DL-methionine were evaluated in two diets: corn and low protein. The hogs were weighed at seven days, showing modest gains up to 1.25 lb. per day. From days 7 to 13, DL-methionine levels were slightly increased by approximately 20% over the initial levels. Growth rates and feed intakes were each further reduced in both the corn and low-protein diets, KNG said.

“Our results from phase 2 confirmed the effect of DL-methionine we experienced in our earlier work,” Edmonds said. “Depending on the diet, we saw further reduction in growth rate with weight gains from 0.6 to 1.0 lb. per head per day. These amino acid imbalance studies provide cost-effective options for swine producers as they manage their hogs until market conditions improve or packing plant capacity is made available.”

Specific phase 2 results and trial diets can be referenced in the KNG Nutrition Note, "Evaluation of Amino Acid Imbalances in Corn & Low Protein Diets in Reducing Growth Rate & Feed Intakes in Late Finishing Pigs."

KNG delivers quality animal nutrition based on a long-standing tradition of progressive innovation and dedication to livestock, equine and pet owners. KNG is a division of Kent Corp., a family-owned, American company founded in 1927. KNG was formed to focus on two successful regional feed brands: Kent in the Midwest and Blue Seal in the East.

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