Byung Ki Park

Effects of Fermented Feedstuff with Wet Brewer’s Grain and Soybean on Fattening Performance and Carcass Grade in hanwoo Steers

This study was conducted to examine the feeding effects of FFWBG (fermented feedstuff with wet brewer’s grain) and GS(grinding soybean) in Hanwoo steers. For this research, total twenty steers(average body weight : 455.725.9kg) were grouped into control(formula feed), T1(formula feed:FFWBG=60:40), T2(formula feed:GS=80:20), T3(formula feed:FFWBG:GS=50:40:10), and T4(formula feed: FFWBG:GS=40:40:20), each treatment was allocated to four steers. There was a tendency to be increased average daily gain in T1, T2, T3 and T4 compared with the control even though no statistical significance was found. The feed conversion of T1, T2, T3 and T4 were beneficially better than that of control(P, respectively). The back-fat thickness of T3 was thicker than that of control, T1, T2 and T4. The rib-eye area of T1, T3 and T4 was wider than that of control. Appearances percentage of ‘A’ ranked meat quantity were 66, 33, 75 and 33% in control, T1, T2 and T4, respectively.

Effects of ruminally protected amino acid-enriched fatty acids on growth performance and carcass characteristics of fattening Hanwoo cows.

ABSTRACT This study was conducted to determine the effects of ruminally protected amino acid-enriched fatty acids (RPAAFA) on bodyweight gain, feed intake and carcass characteristics of fattening Hanwoo cows. Twenty eight Hanwoo cows, 6.0±1.7 years old andweighing an average of 463.2±77.6 kg, were used for 4 months. Animals were fed a basal diet supplemented with RPAAFA at 0g (control) and 100 g (treatment), respectively. Average daily gain, dry matter intake and feed conversion ratio were not differentamong the control and treatment. The supplementation of RPAAFA did not affect carcass weight and rib eye areas. Quality gradescore (1 ++ ,1 + and 1) for treatment was higher in RPAAFA supplemented group compared with the control, whereas no differencesappeared in meat color, fat color, texture and maturity. Thus present results indicate that supplementation of RPAAFA may berecommended for producing high quality beef from fattening Hanwoo cows.( Key words : Hanwoo cows, Ruminally protected amino acid-enriched fatty acids, Carcass characteristics, Beef fattening)

Determination of Optimum Fermentation Condition for Alcohol-Fermented Feeds with Wet Brewer's Grains

본 시험은 맥주박의 알코올 발효가 발효특성 및 사료의 영양적 가치에 미치는 영향을 검토하기 위하여 실시하였다. 본 시험에 이용한 시험사료는 맥주박과 파쇄 옥수수를 50:50(풍건상태)의 비율로 혼합하여 혐기 발효에 의하여 발효사료를 제조하였다. 발효 조건은 당밀 첨가 수준(0, 2 및 5%), yeast 첨가 수준(0, 0.1, 0.5, 1.0 및 2.0%) 및 발효 온도(4, 10, 30, 40 및 50

Estimation of Rumen By-pass Rate of Chromium-methionine Chelates by Ruminal Bacteria Analysis

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Effects of Feeding Patterns of Concentrate on Growth Performance, Blood Parameters and Carcass Characteristics in Fattening Hanwoo Cows

)에 따른 변화를 검토하였으며, 각 조건에 의한 알코올 함량, live yeast cell number (LYCN) 및 pH 변화를 조사하였다. 당밀 첨가에 따른 알코올 함량은 첨가수준이 증가할수록 높게 생성되었다. 발효 24시간 동안에 yeast 0.1, 0.5, 1.0 및 2.0% 첨가에 따른 알코올 함량은 각각 1.9, 2.4, 3.1 및 3.1%로 나타나, yeast 첨가수준 1% 까지는 yeast의 첨가수준이 증가할수록 시험사료중의 알코올 생성량도 비례적으로 증가하였으나(P

Effects of Rumen Protected Choline on In vitro Ruminal Fermentation and Milk Production and Its Composition in Lactating Cows

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Effects of Fish Oil Supplementation on Growth Performance, Fatty Acid Composition of Longissimus Muscle and Carcass Characteristics in Hanwoo Steers

에서 유의적으로 높은 결과를 보였으며(P

Effects of Fermented Feedstuff Added Saccharomyces cerevisiae on Fattening Performance and Carcass Grade in Hanwoo Bulls

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Expression and purification of His-tagged flavonol synthase of Camellia sinensis from Escherichia coli.

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Maintenance of Sperm Characteristics and In vitro Developmental Rate of Embryos against Oxidative Stress through Antioxidants in Pig

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