title: Effect of soy lecithin on total cholesterol content, fatty acid composition and carcass characteristics in the Longissimus dorsi of Hanwoo steers (Korean native cattle).
abstract: This study aims to investigate the effect of soy lecithin on the total cholesterol content, the fatty acid composition and carcass characteristics in the Longissimus dorsi in Hanwoo steers. Hanwoo steers (24 head) were fed two diets: Control (CON) (concentrate + alcohol-fermented feed (AFF)) and soy lecithin treatment (CON + soy lecithin at 0.5% of the AFF). Soy lecithin treatment increased average daily gain, serum concentrations of triglyceride, total cholesterol and high-density lipoprotein-cholesterol in the blood. A lower cholesterol concentration was found in the Longissimus dorsi for the soy lecithin diet compared to the CON diet. With respect to the marbling score and quality grade of Longissimus dorsi, soy lecithin supplementation significantly increased the C20:5n3, C22:4 and polyunsaturated fatty acids contents compared to the CON diet. Soy lecithin supplementation would alter the total cholesterol content, polyunsaturated fatty acid profile and meat quality of Longissimus dorsi.
authors.affiliation: Co-Innovation Center of Beef Cattle Science and Industry Technology, Yanbian University, Yanji, Jilin, China.
authors.forename: Xiang Zi
authors.initials: XZ
authors.lastname: Li
authors.affiliation: Nonghyup Feed Co., LTD, Seoul, Korea.
authors.forename: Byung Ki
authors.initials: BK
authors.lastname: Park
authors.affiliation: Nonghyup Feed Co., LTD, Seoul, Korea.
authors.forename: Byuong Chon
authors.initials: BC
authors.lastname: Hong
authors.affiliation: Nonghyup Feed Co., LTD, Seoul, Korea.
authors.forename: Jun Sang
authors.initials: JS
authors.lastname: Ahn
authors.affiliation: Nonghyup Feed Co., LTD, Seoul, Korea.|Department of Animal Life Science, Kangwon National University, Chuncheon, Korea.
authors.forename: Jong Suh
authors.initials: JS
authors.lastname: Shin
mesh_terms: D000821:Animal Feed; D000818:Animals; D002417:Cattle / Q000378:metabolism*; D002784:Cholesterol / Q000032:analysis / Q000378:metabolism*; D004032:Diet / Q000662:veterinary*; D019587:Dietary Supplements; D005231:Fatty Acids, Unsaturated / Q000032:analysis / Q000378:metabolism*; D063427:Food Quality; D054709:Lecithins / Q000008:administration & dosage*; D008297:Male; D008460:Meat / Q000032:analysis*; D018482:Muscle, Skeletal / Q000378:metabolism*; D013025:Glycine max
chemical_list: D005231:Fatty Acids, Unsaturated; D054709:Lecithins; D002784:Cholesterol
keywords: Hanwoo steers; growth performance; meat quality; soy lecithin; total cholesterol