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Effect of mixed hay supplementation during fattening on carcass traits and meat quality of Hanwoo steers

  • Utama, Dicky Tri (College of Animal Life Sciences, Graduate School, Kangwon National University) ;
  • Choi, Ji Hye (College of Animal Life Sciences, Graduate School, Kangwon National University) ;
  • Lee, Chang Woo (Gangwon Provincial Livestock Research Center) ;
  • Park, Yeon Soo (Gangwon Provincial Livestock Research Center) ;
  • Lee, Sung Ki (College of Animal Life Sciences, Graduate School, Kangwon National University)
  • Received : 2016.10.23
  • Accepted : 2017.02.13
  • Published : 2017.03.31

Abstract

Background: This study was aim to observe the effects of feeding mixed local hay (MH) consisted of 55% orchard grass (Dactylis glomerata L.), 35% tall fescue (Festuca arundinacea) and 10% red clover (Trifolium pratense) to Hanwoo steers on performance, carcass characteristics and meat quality (longissimus thoracis) compared with feeding imported timothy hay (TH) and local rice straw (RS). Results: Although no significant effects were found on animal performance and carcass yield grade, the carcasses of MH group had higher marbling score and quality grade than those of RS and TH group (P < 0.05). Therefore, higher fat content (P < 0.001), lower shear force and hardness value in the beef of MH group than that of other groups were observed. Furthermore, the beef of MH group had higher CIE $a^*$ value (redness) than that of other groups and feeding MH to Hanwoo steers lowered n-6 to n-3 fatty acids ratio in beef. Conclusions: Mixed hay provided benefits on meat quality and could be used for Hanwoo fattening program.

Keywords

Beef;Hanwoo;Hay;Meat quality;Orchard grass;Red clover;Straw;Tall fescue;Timothy grass

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