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논문 기본 정보

자료유형
학술저널
저자정보
Jeong, Da-Woon (Department of Animal Science, Chonbuk National University) Oh, Mi-Ra (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Seong, Pil-Nam (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Cho, Soo-Hyun (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Kang, Geun-Ho (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Kim, Jin-Hyung (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Jeong, Seok-Geun (Animal Products Research and Development Division, National Institute of Animal Science, RDA) Lee, Jun-Soo (Department of Animal Science, Chonbuk National University) Park, Beom-Young (Animal Products Research and Development Division, National Institute of Animal Science, RDA)
저널정보
한국축산식품학회 한국축산식품학회지 한국축산식품학회지 제32권 제5호
발행연도
2012.1
수록면
591 - 597 (7page)

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초록· 키워드

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This study was conducted to compare meat quality traits related to the tenderness of longissimus muscles obtained from domestic and imported steers. A total of 12 steers from three breeds were slaughtered, and were graded as quality grade 2. They were composed of 4 Hanwoo and 4 Holstein steers (domestic) as well as 4 Angus steers (imported from Australia and gained for six months in Korea until slaughtered). The longissimus lumborum muscles were separated and were stored at $4^{\circ}C$ for 7 and 14 d. Sarcomere length of Hanwoo was significantly shorter than Holstein and Angus at storage day 14 (p<0.05). The myofibrillar index was significantly lower on Hanwoo than Angus at ageing day 7, and was significantly lower than Holstein and Angus steers at storage day 14 (p<0.05). Total collagen contents of Hanwoo and Angus steers were significantly higher than Holstein on storage day 7 (p<0.05), whereas soluble collagen contents of Holstein were significantly higher than Hanwoo and Angus on storage days 7 and 14 (p<0.05). There was no significant difference in the fatty acid composition of the three breeds (p>0.05). Glutamic acid contents of Hanwoo and Angus steers were higher than those of Holstein steers at ageing day 7 and 14 (p<0.05). The results of this study have shown that there were no dramatic differences between beef from the three breeds that were fattened for 6 months under equal conditions.

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