育肥期补饲混合干草对韩牛阉牛胴体性状和肉质的影响。
Effect of mixed hay supplementation during fattening on carcass traits and meat quality of Hanwoo steers.
作者信息
Utama Dicky Tri, Choi Ji Hye, Lee Chang Woo, Park Yeon Soo, Lee Sung Ki
机构信息
College of Animal Life Sciences, Graduate School, Kangwon National University, Chuncheon, 24341 South Korea.
Gangwon Provincial Livestock Research Center, Hoengseong, 25266 South Korea.
出版信息
J Anim Sci Technol. 2017 Mar 13;59:6. doi: 10.1186/s40781-017-0131-y. eCollection 2017.
BACKGROUND
This study was aim to observe the effects of feeding mixed local hay (MH) consisted of 55% orchard grass ( L.), 35% tall fescue () and 10% red clover () to Hanwoo steers on performance, carcass characteristics and meat quality () 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 ( < 0.05). Therefore, higher fat content ( < 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.
背景
本研究旨在观察用由55%果园草（鸭茅）、35%高羊茅和10%红三叶草组成的混合本地干草（MH）饲喂韩牛阉牛，与饲喂进口提摩西干草（TH）和本地稻草（RS）相比，对其生产性能、胴体特性和肉质的影响。
结果
虽然在动物生产性能和胴体产量等级方面未发现显著影响，但MH组的胴体大理石花纹评分和质量等级高于RS组和TH组（P<0.05）。因此，观察到MH组牛肉的脂肪含量更高（P<0.001），剪切力和硬度值低于其他组。此外，MH组牛肉的CIE a*值（红色度）高于其他组，并且用MH饲喂韩牛阉牛可降低牛肉中n-6与n-3脂肪酸的比例。
结论
混合干草对肉质有益，可用于韩牛育肥计划。
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