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RISS 인기검색어
- 검색키워드
- 저자 : 함태수 ( Y . S . Sye (검색결과 4 건)
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서영석,함태수 ( Y . S . Sye,T . S . Ham ) 한국축산학회 1998 한국축산학회지 Vol.40 No.3
This experiment was carried out to study the carcass composition between two kinds of goat, fattening Korean Native Goat and 3 years old goat raised in the farm. The average dressing percent of fattening herd was 47.5% while that of 3 years old herd was 45.5%. The neck portion percent in carcass weight was 13.4% in 3 years old herd and this was higher than that of the fattening herd, 11.1%(P$lt;0.01). The forequarter percentages were 50.0% in the fattening herd and 51.4% in 3 years old herd. The hindquarter percentage of fattening herd was 38.9% which was higher than that of the 3 years herd, 35.2%(P$lt;0.05). Edible meat percent in carcass of the 3 years herd was 69.6% which was higher than that of the fattening herd, 63.9%(P$lt;0.05). The fat percent of fattening was 16.6%. It was almost twice compared to that of 3 years old herd, 8.6%(P$lt;0.01). The bone percent of the fattening herd was 18.3% while that of the 3 years herd was 20.0%. The highest meat portion was found in the neck part of the 3 years herd as 73.9%. The highest fat content was 20.0% in the forequarter of the fattening head. The meat portion of slaughter weights of fattening and 3 years old herds were 29.1% and 32.0%, respectably(P$gt;0.05).
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한우 육증산을 위한 비육촉진제에 관한 연구 2 보 . Monensin 첨가가 한우비거세우의 비육 능력 및 제 1 위내 성상에 미치는 영향
정근기,이학철,손제영,서영석,임경순,함태수 ( K . K . Jung,H . C . Lee,J . Y . Son,Y . S . Sye,K . S . Lim,T . S . Ham ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5
This experiment was conducted to determine the effects of monensin on feedlot performance and volatile fatty acids production in the rumen of fattening bulls of Korean native cattle. Twelve bulls of Korean native cattle averaging 235 ㎏ initially were randomly assigned in groups with 6 animals per pen (9m x 10m) for 280-day experiment. The bulls were fed ad lithium concentrate rations with and without 30 ppm monensin, and the cut rice straw as roughage was mixed with the concentrates at the rate of 10%. Average daily gain for the first stage (112 days), the second stage (168 days), and for the entire period (280 days)was improved by 19.8, 20.5, and 20.2%, respectively, by monensin. Feed conversion for the first stage, the second stage, and the entire period was improved by 16.8, 15.3, and 15.5%, respectively, by monensin. Also, DCP and TDN per ㎏ gain were improved with monensin by 17.6 and 16.8 for the first stage, 15.0 and 15.2% for the second stage, 15.4 and 15.4% for the entire period, respectively. Feed consumption of monensin group tended to be increased slightly compared that of non-monensin group regardless of fattening stages. Ruminal pH and total VFA concentration were not affected by monensin. Molar percent of propionate was greatly increased (p$lt;.01) with monensin feeding and acetate (p$lt;.01) and butyrate decreased markedly. As a result, acetate to propionate ratio was decreased to 32.5%. Monensin did not greatly influence carcass characteristics. However, monensin group tended to have somewhat lower dressing percent, more marbling score, and larger rib-eye area. Rumen parakeratosis, abomasum erosion, and urinary calculi in the bladder were found in all groups. Although there was no large difference between both groups. more urinary calculi were observed in the control than the monensin group. These results indicate that monensin in of positive value as a feed additive in fattening hull rations for Korean native cattle.
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한우 육증산을 위한 비육촉진제에 관한 연구 1 보 . Monensin 첨가가 홀스타인 비거세우의 비육능력 및 제1 위내성상 ( 胃內性狀 )에 미치는 영향
정근기,이학철,손제영,서영석,임경순,함태수 ( K . K . Jung,H . C . Lee,J . Y . Son,Y . S . Sye,K . S . Lim,T . S . Ham ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5
Eight holstein bulls averaging 244.1 ㎏ in initial body weight were utilized in two treatments to study the effects of monensin on growth rate, feed efficiency, carcass characteristics and ruminal volatile fatty acids production in an outdoor drylot conditions. The treatment groups were fed ad libitum either 0 or 30 ppm monensin supplemented in concentrates, for 280-day feeding period. The cut rice straw as a only roughage was mined with the concentrates at the rate of 10%. During 112 days of the first stage, monensin improved daily gain 17%.(p$lt;.05), feed conversion 9%, and 11% and 10% in DCY and TDN per ㎏ gain, respectively. Throughout 280 days of tire entire period, monensin group showed 8% improvement in gain but had no improvement io feed conversion and DCP and TDN per ㎏ gain. Feed consumption tended to be higher as tire fattening stages progressed. Ruminal pH and total VFA concentration were unchanged by monensin, Molar percents of acetate and butyrate were reduced and that of propionate increased markedly with monensin. As a result, the acetate to propionate ratio was narrowed.
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한우 육증산을 위한 비육촉진제에 관한 연구 3 보 . Monensin 첨가가 한우큰소 비육의 비육능력 및 제 1 위내성상에 미치는 영향
이학철,정근기,손제영,서영석,임경순,함태수 ( H . C . Lee,K . K . Jung,J . Y . Son,Y . S . Sye,K . S . Lim,T . S . Ham ) 한국축산학회 1980 한국축산학회지 Vol.22 No.5
The pervious studies evidenced the marked effects of monensin on feedlot performance of growing-finishing male cattle. Thus, the effects of monesin on feedlot performance of finishing bulls with initial body weight of over 300 ㎏ in Korean native cattle were studied, and also volatile fatty acids production in the rumen was observed. Eight bulls of Korean native cattle averaging 318.7 ㎏ were randomly divided into two groups of four animals for 161-day experiment. The bulls were fed ad libitum rations containing monensin at 0 or 30 ppm with rice straw as roughage. The rice straw was cut to length of 3-5㎝ and mixed with the concentrates at the rate of 10%. Average daily gain, concentrate consumption, and concentrate conversion were 1.05, 9.00, 8.55 ㎏ for the control group and 1.20, 9.13, 7.5 ㎏ for the monensin group, respectively. Monesin improved daily gain by 14.3% and concernrate conversion by 11.2%. Also, monensin made an improvement of 10.6% and 11.4% in DCP and TDN per ㎏ gain, respectively. Ruminal pH and total VFA concentration were not largely changed by monensin, but monensin group tended to slightly increased the total VFA concentration. Molar percent of propionate was significantly increased (p$lt;.01). As a result, acetate to propionate ratio was greatly decreased (p$lt;.01). Monensin did not influence carcass characteristics, but monensin group tended to have lower dressing percent. Rumen parakeratosis, abomasum erosion and ulcer were observed in the control and the monensin groups. However, the control group showed more pathological changes including abomasum hemorrhage and urinary calculi in the bladder than the monensin group. These results suggest that monensin is valuable to increase beef production of Korean native cattle.
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