Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 2020 Jan;33(1):69-78.
doi: 10.5713/ajas.19.0209. Epub 2019 Aug 3.

The effect of finishing diet supplemented with methionine/lysine and methionine/α-tocopherol on performance, carcass traits and meat quality of Hanwoo steers

Farouq Heidar Barido  1 , Dicky Tri Utama  1   2 , Hae Seong Jeong  1 , Juntae Kim  1 , Chang Woo Lee  3 , Yeon Soo Park  3 , Sung Ki Lee  1
Affiliations

The effect of finishing diet supplemented with methionine/lysine and methionine/α-tocopherol on performance, carcass traits and meat quality of Hanwoo steers

Farouq Heidar Barido et al. Asian-Australas J Anim Sci. 2020 Jan.

Abstract

Objective: This study aimed to compare the effects of diets with and without supplements of methionine/lysine (met/lys) and methionine/α-tocopherol (met/α-tocopherol) on the performance, carcass traits and meat quality of Hanwoo steers.

Methods: A total of 21 Hanwoo steers were divided into three different groups. Each group consisted of 7 animals that received different dietary treatments for 120 days as follows: a control (C) diet composed of a basal diet with 74% total digestible nutrient and 12% crude protein; treatment 1 (T1) composed of a basal diet enriched with methionine 69%+lysine 31%; and treatment (T2) composed of a basal diet enriched with methionine 84.65%+α-tocopherol 15.35%. Daily supplementation was given using the top-dressing method (20 g/animal).

Results: The met/lys groups yielded a longissimus lumborum with increased water holding capacity (p<0.01) and lower shear force value (p<0.05). Dietary met/lys did not have an adverse effect on the animal performance and carcass traits. Instead, these supplements contributed significantly to the higher protein content compared to the control diet (p<0.05). Myristic acid (C14:0) was the only fatty acid affected by the supplementation. While the met/α-tocopherol group led to significantly higher protein and oxymyoglobin contents during storage (p<0.05). It also contributed significantly to the lower shear force value and 2-thiobarbituric acid reactive substances score during storage (p<0.05) compared to the control and treatment 1 since the initial storage day. The met/α-tocopherol diet also yielded meat with a redder color (p<0.05) after 3 days of storage. However, it did not significantly contribute to the fatty acid profiles of Hanwoo steers.

Conclusion: Met/lys supplementation resulted in higher protein scores, water holding capacity and lower shear force scores. While met/α-tocopherol supplementation contributes to the production of redder meat, reduces lipid oxidation, production of more tender meat and increases the content of protein and oxymyoglobin percentage.

Keywords: Hanwoo Steers; Lysine; Meat Quality; Methionine; α-Tocopherol.

PubMed Disclaimer

Conflict of interest statement

CONFLICT OF INTEREST

We certify that there is no conflict of interest with any financial organization regarding the material discussed in the manuscript.

References

    1. Dantzer R, Mormede P. Stress in farm animals: a need for reevaluation. J Anim Sci. 1983;57:6–18. doi: 10.2527/jas1983.5716. - DOI - PubMed
    1. Wen C, Jiang XY, Ding LR, Wang T, Zhou YM. Effects of dietary methionine on growth performance, meat quality and oxidative status of breast muscle in fast- and slow-growing broilers. Poult Sci. 2017;96:1707–14. doi: 10.3382/ps/pew432. - DOI - PubMed
    1. Hosford AD, Hergenreder JE, Kim JK, et al. Effects of supplemental lysine and methionine with zilpaterol hydrochloride on feedlot performance, carcass merit, and skeletal muscle fiber characteristics in finishing feedlot cattle. J Anim Sci. 2015;93:4532–44. doi: 10.2527/jas.2015-9047. - DOI - PubMed
    1. Zhai W, Schilling MW, Jackson V, Peebles ED, Mercier Y. Effect of dietary lysine and methionine supplementation on ross 708 male broilers from 21 to 42 days of age (II): breast meat quality. J Appl Poult Res. 2016;25:212–22. doi: 10.3382/japr/pfw003. - DOI
    1. Baggerman JO. Role of encapsulated amino acids on skeletal muscle growth and development in feedlot steers [thesis] Lubbock TX, USA: Texas Tech University; 2014.

LinkOut - more resources