Protect Broiler Performance and Profits with HMTBa Methionine
The Source Matters
Methionine is an essential amino acid, meaning chickens’ bodies (just like humans) can’t make it, so they must consume it. Methionine is also the first limiting amino acid in poultry; a chicken’s growth is limited by the amount of methionine supplemented, to a certain extent.
Protecting Performance
Data covering 8 billion broilers in the U.S. from an independent third-party industry benchmarking organization was evaluated for the difference in growth and carcass performance between birds supplemented with HMTBa and DL-methionine. The data showed roughly 75 percent of the broilers in the U.S. consume HMTBa, while only 25 percent consume DL-methionine (Figure 1).
At today's recommended levels for methionine supplementation, birds fed HMTBa more efficiently convert feed to weight gain than birds that consume DL-methionine (Figure 2). This is well established in the scientific literature, and industry data further supports this.
Birds consuming DL-methionine will stop eating when the methionine levels in the blood plasma gets too high. Birds fed HMTBa have much lower levels of methionine in the blood plasma because HMTBa is converted to methionine in the tissues. This allows birds fed HMTBa to have higher feed intake at high levels of methionine supplementation.
Broilers fed HMTBa have a superior growth rate, achieving a target body weight of 6 pounds between 0.5 and 1.7 days sooner (Figure 3). At an average of 1-day sooner, with 1-day equivalent to one point of feed conversion, the economic value of choosing HMTBa over DL-methionine as the methionine source is worth approximately $10,000 USD for every 1 million birds produced.
Futher analysis indicates broiler complexes meeting their methionine needs with HMTBa have an improvement in without giblet (WOG) meat yield (Figure 4). With an average increase (2005-2015) of 1.67 percentin yield, producers get more sellable meat from each chicken. The economic value of this improvement in meat yield would equal another $0.03 - $0.04 profit per broiler or $30,000 - $40,000 for every 1 million birds produced.
In the case of broilers, there is added-value from choosing HMTBa as the methionine source. HMTBa is a chemically different and functionally better source of methionine with value beyond meeting the basic amino acid needs of the animal. Being a different chemical compound and improving energetic efficiency offer the added benefit of reducing the environmental impact of meat production.
Studies have found that HMTBA and DL-Methionine are equally effective or provide equal methionine value (100%) (on equimolar basis) to birds on a comparative dose basis. For a deeper understanding, if needed, it is recommended to look through the Schothorst Feed Research Institute study outcome in 2015. Additionally, to understand the metabolism of HMTBa, it might also be worth reading the review in World Poultry Science journal (Review of the metabolism of 2-hydroxy-4- (methylthio) butanoic acid).
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It should be used when prestarter and starter feed formulating. In summer feed, for anti heat stress option. In ruminant feed as a source of rumen bypass methionine source. For cost reduction of broiler feed as '1blow...2 hits 'achievement.
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Thanks, Mr. Meghraga for the valuable information you delivered. You mentioned that there is a methionine value in several different feed ingredients broilers consume, but a typical broiler diet does not contain enough to meet their requirements for optimal growth. The most economical way to meet that requirement level is to offer it in the form of a feed supplement.
The directly supplemented methionine is affected by the concentration in the blood whereas the HMBTA is converted to methionine in the tissues so it seems to me that there is an unexplained relation between the directly supplemented methionine and the animal body on one hand and the HMBTA and the animal body on the other. Could you please give further explanation? Thanks a lot.
Digestible lysine requirements of male broilers from 1 to 42 days of age reassessed
What I understand there is a Methionine satiety like Calcium in case of using DL Methionine as HMTBA is chemically different and it pH is low it gives slight acidification effect thus improving FCR.
