• Title/Summary/Keyword: 도체 특성

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Effects of Feeding Squid By-Products on Growth Performance and Carcass Characteristics of Hanwoo Cows (오징어 부산물의 급여가 한우암소 산육 및 도체특성에 미치는 영향)

  • Lee, Sang-Min;Jang, Sun-Sik;Lee, Seok-Dong;Hong, Seong-Koo;Lee, Sung-Sill;Woo, Jae-Seok
    • Journal of Life Science
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    • v.22 no.1
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    • pp.36-40
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    • 2012

  • This study was conducted to evaluate the effect of feeding squid by-products on the growth performance and carcass characteristics of Hanwoo cows. Sixteen Hanwoo cows, aged 7 years and weighing $484.1{\pm}63.6$ kg, were randomly allocated to 2 feeding groups (8 animals per group): control and treatment (fed squid by-products). Both groups were fed ad libitum for 150d. Average daily gain was significantly higher in the treatment group than in the control group (p<0.05). During the experimental period, DMI and feed conversion ratios were significantly lower in the treatment group than in the control group (p<0.05). The results of yield traits, back fat thickness, rib eye area, and yield index were similar between the two groups. Carcass weights were 363.4 kg and 353.1 kg for treatment and control, respectively, but these differences were not statistically significant. Quality traits such as meat color, fat color, texture, and maturity were also not significantly different between the two groups. However, marbling score and rate of appearance of high quality grade ($1^{++}$, $1^+$, and 1) were higher in the treatment group than in the control group. These results suggest that feeding squid by-products may improve the growth performance and carcass characteristics of Hanwoo cows.

  • https://doi.org/10.5352/JLS.2012.22.1.36 인용 PDF KSCI

Effects of the Feeding Length of Spent Mushroom Composts from Selenium-Enriched Mushroom on Meat Quality and Carcass Characteristics in Finishing Hanwoo Steers (셀레늄강화 버섯폐배지의 급여기간이 거세한우의 육질 및 도체특성에 미치는 영향)

  • Kim, W.Y.;Lee, K.J.;Nho, W.G.;Lee, J.H.
    • Journal of Practical Agriculture & Fisheries Research
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    • v.7 no.1
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    • pp.109-117
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    • 2005

  • This study was carried out to determine effects of the feeding length of spent mushroom composts from selenium-enriched mushroom (Se-SMC) on meat quality and carcass characteristics in finishing Hanwoo steers. A total of 20 steers were used in this trial with four treatments. Treatments included control (no Se-SMC), Se-SMC groups of three different feeding lengths (2, 4, and 6 months). After the completion for each feeding length, steers were slaughtered and then loin muscle (Longissimus dorsi) was sampled to evaluate meat quality characteristics. Chemical compositions of the loin, except for protein content, were not different across treatments. Protein content was highest in 6 months feeding groups, however, it was lowest in 4 months. Physical property and meat color (L*, a* and b* values) were not affected by the feeding length of Se-SMC. However, water holding capacity (WHC) for Se-SMC feeding treatments was significantly more improved (p<0.05) in comparison with the control group, showing 63.8 (2 months), 64.4 (4 months), 64.2 (6 months), and 59.5% (control), respectively. Grades for meat quality and quantity, and carcass characteristics were not affected by feeding length of Se-SMC. Our results showed that Se-SMC supplementation was not significantly associated with parameters for meat quality and carcass characteristics. However, as feeding Se-SMC lengthens, WHC for loin was more improved, suggesting that the improved WC may result in the expression of antioxidant effect.

  • https://doi.org/10.23097/JPAF:2005.7(1).109 인용 PDF