Title

Methionine: an essential amino acid and potential enhancer of antioxidant systems in swine diets

Advisor

Liao, Shengfa

Committee Member

Dinh, Thu

Committee Member

Devost-Burnett, Derris

Committee Member

Feugang, Jean M.N.

Date of Degree

12-1-2020

Original embargo terms

Visible to MSU only for 2 years||12/15/2022

Document Type

Graduate Thesis - Open Access

Major

Animal Science

Degree Name

Master of Science

College

College of Agriculture and Life Sciences

Department

Department of Animal and Dairy Sciences

Abstract

L-Methionine (L-Met) is a new product that supplies the biologically active form of methionine. Therefore, the objective of this study was to elucidate the benefits of dietary L-Met supplementation relative to the industry standard DL-Met. Sixteen gilts with an initial BW 81.2±7.93 kg were individually penned and randomly allotted to one of two equivalent dietary treatments for 37 days in 2 trials (8 pigs/trial): DL-Met (0.050% of diet) or L-Met (0.052% of diet). Body weight and feed intake were measured on days 0, 19, and 37 to calculate performance measures. Pigs were harvested and carcasses assessed on day 38. Liver, loin muscle, and subcutaneous fat were collected for antioxidant assessments. Data were analyzed via Proc Mixed in SAS and significance was set at P ≤ 0.05. There were no differences between dietary treatments in growth performance, carcass characteristics, or antioxidant status (P > 0.05). In conclusion, methionine form did not differentially impact animal growth or antioxidant status.

URI

https://hdl.handle.net/11668/20887

Sponsorship

MSU-ADS Graduate Research assistantship program USDA-NIFA Hatch/Multistate Project (No. 1007691) MAFES Strategic Research Initiative grant (2019)

Comments

antioxidant||methionine||swine||amino acid

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