African Journal of
Agricultural Research

  • Abbreviation: Afr. J. Agric. Res.
  • Language: English
  • ISSN: 1991-637X
  • DOI: 10.5897/AJAR
  • Start Year: 2006
  • Published Articles: 6574

Full Length Research Paper

Effects of dietary soybean curd residue on the growth performance and carcass characteristics in Hanwoo (Bos taurus coreanae) steer

Kyoung Hoon Kim1, Sung Jin Kim2, Byong Tae Jeon2, Dong Hyun Kim2, Mi Rae Oh2, Pyo Jam Park2, Hyuk Jung Kweon3, Baek Yeong Oh4, Sun Jin Hur2 and Sang Ho Moon2*        
1National Institute of Animal Science, RDA, Suwon, 441-706, Korea. 2School of Food Bio Science, Korea Nokyoung Research Center, Konkuk University, Chungju, 380-701, Korea. 3Department of Family Medicine, School of Medicine, Konkuk University, Chungju, 380-701, Korea. 4Icheon Agricultural Technology Center, Icheon, 467-801, Korea.
Email: [email protected]

  •  Accepted: 17 July 2012
  •  Published: 07 August 2012

Abstract

This study was conducted to determine the effect of dietary soybean curd residue (SCR) on the growth performance and carcass characteristics in Korean native cattle, Hanwoo steer (Bos taurus coreanae). A total of 15 cattle (8 month old and averaging 238.5±12.4 kg in weight) were divided into three dietary groups and then fed a diet containing 0 (T1, control), 25 (T2) and 35% SCR (T3) for 22 months. Meat (M. longissimus dorsi) grade were estimated by the Korean carcass grading system. In growth performance, dry matter intake (DMI) and average daily gain (ADG) were significantly higher in SCR groups (T2 and T3) than T1 group in final fattening period. Feed efficiency of T3 group was higher than other groups for all feeding periods, and carcass weight and marbling score of T3 were higher than other dietary groups. Crude fat content of meat was higher in SCR groups than T1 group. Consequently, dietary SCR could improve growth rate of cattle without any meat quality deterioration. These results may be closely related with the increase of DMI and ADG by dietary SCR.

 

Key words: Longissimus dorsi muscle, dry matter intake, feed conversion, marbling score.