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KMID : 0613820120220010036
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Journal of Life Science
2012 Volume.22 No. 1 p.36 ~ p.40
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Effects of Feeding Squid By-Products on Growth Performance and Carcass Characteristics of Hanwoo Cows
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Lee Sang-Min
Jang Sun-Sik
Lee Seok-Dong
Hong Seong-Koo
Lee Sung-Sill
Woo Jae-Seok
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Abstract
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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±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.
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KEYWORD
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Hanwoo cows, squid by-products, growth performance, carcass characteristics
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