title: Profile of Hanwoo Steer Carcass Characteristics, Meat Quality and Fatty Acid Composition after Feeding Italian Ryegrass Silage.
abstract: The objective of this work was to evaluate the growth performance, feed intake, slaughter characteristics, meat quantity and quality characteristics of Hanwoo steers fed with Italian ryegrass (IRG) silage (TRT). IRG silage consisted 11.70% protein, 2.84% ether extract, 53.50% dry matter digestibility and 63.34% total digestible nutrients. The daily weight gain and feed conversion ratio of TRT were significantly (p<0.01) higher than that of control diet (CON; fed rice straw) in the whole periods. However, the slaughter weight, dressing percentage, quantity grade and quantity traits (marbling score, meat color, fat color, and quality grade) of either TRT or CON were similar. Meat fed TRT diet showed higher crude fat and lightness (L*) value and lower moisture content and pH value compared with the CON diet (p<0.05). Overall the carcass yield was 12.5% higher than CON diet.
authors.affiliation: Grassland and Forage Division, National Institute of Animal Science, RDA, Cheonan 330-801, Korea.
authors.forename: Won Ho
authors.initials: WH
authors.lastname: Kim
authors.affiliation: Department of Animal Resources, Daegu University, Gyeongsan 712-714, Korea.
authors.forename: Suk-Nam
authors.initials: SN
authors.lastname: Kang
authors.affiliation: Grassland and Forage Division, National Institute of Animal Science, RDA, Cheonan 330-801, Korea.
authors.forename: Mariadhas Valan
authors.initials: MV
authors.lastname: Arasu
authors.affiliation: Feed Research Institute Nonghyup Feed Inc., Seoul 134-763, Korea.
authors.forename: Gyo-Moon
authors.initials: GM
authors.lastname: Chu
authors.affiliation: The United Graduate School of Agricultural Sciences, Tottori University, Tottori-Shi 680-8553, Japan.
authors.forename: Da Hye
authors.initials: DH
authors.lastname: Kim
authors.affiliation: Department of Animal Resource and Science, Dankook University, Cheonan 303-714, Korea.
authors.forename: Jae-Hong
authors.initials: JH
authors.lastname: Park
authors.affiliation: Animal Nutrition and Physiology Team, National Institute of Animal Science, RDA, Suwon 441-706, Korea.
authors.forename: Young Kyoon
authors.initials: YK
authors.lastname: Oh
authors.affiliation: Grassland and Forage Division, National Institute of Animal Science, RDA, Cheonan 330-801, Korea.
authors.forename: Ki Choon
authors.initials: KC
authors.lastname: Choi
keywords: Hanwoo steers; Italian ryegrass silage; carcass characteristics; fatty acid profiles; meat quality