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KMID : 1024620150350030299
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Food Science of Animal Resources
2015 Volume.35 No. 3 p.299 ~ p.306
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Profile of Hanwoo Steer Carcass Characteristics, Meat Quality and Fatty Acid Composition after Feeding Italian Ryegrass Silage
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Kim Won-Ho
Kang Suk-Nam
Arasu Mariadhas Valan
Chu Gyo-Moon
Kim Da-Hye
Park Jae-Hong
Oh Young-Kyoon
Choi Ki-Choon
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Abstract
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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.
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KEYWORD
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Italian ryegrass silage, Hanwoo steers, carcass characteristics, meat quality, fatty acid profiles
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