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채종박 (菜種粕) 을 사용한 육계사료에 Avoparcin 첨가효과
엄재상(J . S . Um),남궁환(H . Namkung),백인기(I . K . Paik) 한국축산학회 1990 한국축산학회지 Vol.32 No.12
An experiment was conducted to examine the effects of supplementation of Avoparcin in the broiler diet with or without rapeseed meal(RSM). Two hundred fifty hatched male broiler chickens were divided into 25 groups of 10 birds each and fed in floor batteries. Five groups were placed on one of the following five experimental diets; Soybean meal(SBM) diet, SBM diet + Avoparcin 10ppm, RSM diet, RSM diet +.Avoparcin 10ppm and RSM diet + Avoparcin 15ppm. Diets were formulated to have isocalorie and isonitrogen and all RSM diets contained 8% of RSM imported from India. Results of the experiment showed that supplementation of Avoparcin in RSM diets significantly(p $lt;0.05) improved weight gain at 3 wks of age. At 4wks of age, however, significant differences among treatments disappeared but dose related tendency still existed both in SBM and RSM diets. Gain of the birds fed RSM diets supplemented with Avoparcin were not significantly different from that of the birds fed SBM diet with or without Avoparcin supplementation in all ages. Feed efficiency of RSM diet was significantly(p $lt;0.05) poorer than other treatments. Dressing percentage of the birds fed RSM diet was lower than those fed other diets. Weight of thyroid glands of the birds were not significantly different among treatments. Nutrients availability tended to be high in the Avoparcin supplemented diets but they were not significantly different.
사료의 ME가와 단백질 수준이 백세미의 생산성과 경제성에 미치는 영향
조중호,엄재상,유명상,백인기,Cho, J.H.,Um, J.S.,Yu, M.S.,Paik, I.K. 한국가금학회 2007 韓國家禽學會誌 Vol.34 No.1
ME가와 단백질 수준이 백세미 육계의 생산성과 경제성에 미치는 영향을 알아보기 위하여 시중에 판매되는 육계 초이 및 전기 사료를 T1로 하여 전기(starter) 및 육성기(grower) 사료로 각각 이용하였고, T1 사료의 ME가와 조단백 함량을 하향 조정한 세 처리구 등 총 4가지 사료(전기: T1; ME 3,040, CP 21.40%, T2;ME 2,950, CP 20.62%, T3; ME 2,950, CP 19.90%, T4; ME 2,900, CP 18.50% 그리고 후기: T1; ME 3,070, CP 20.86%, T2; ME 3,000, CP 19.70%, T3; ME 3,000, CP 18.70%, T4; ME 2,920, CP 18.00%)를 실용 산란계 암컷(Hy-Line)과 육용 종계 수컷($Ross^{(R)}$)을 인공 수정하여 부화시킨 백세미 초생추 360수(4처리, 6반복, 반복당 15수)에 공시하여 5주간의 사양 시험을 실시하였다. 증체량은 T1구가 다른 세 처리구에 비해 가장 높았고 사료 섭취량 또한 T1구가 가장 높았다. 사료 전환율도 T1구가 가장 좋았다. 생산 지수에서도 T1이 153으로 T2: 112, T3: 108 그리고 T4: 101 보다 유의하게 높았다. 또한 경제성 분석에서도 T1이 다른 처리구에 비하여 현저하게 우수하였으며 kg 증체당 사료비가 가장 낮았다. 그 다음으로 T4, T3, T2 순이었다. 결론적으로 백세미의 증체량과 사료 요구율 및 경제성을 고려할 때 기존의 육계 사료를 급여 시 생산성이 가장 높았으며, 사료의 ME가와 조단백질 함량을 하향 조정할수록 생산성이 저하되었다. An experiment was conducted to investigate the effect of ME and crude protein (CP) content of diet on the performance and production cost of white semibroiler chickens. Three hundred sixty hatched white semibroiler chickens (Hy-Line $female\;{\times}\;Ross^{(R)}$ male) were assigned to low dietary treatments of different metabolizable energy (ME) value and crude protein (CP) content: T1; ME 3,040 and 3,070 kcal/kg, CP 21.40 and 20.86%, T2; ME 2,950 and 3,000 kcal/kg, CP 20.62 and 19.70%, T3; ME 2,950 and 3,000 kcal/kg, CP 19.90 and 18.70% and T4; ME 2,900 and 2,920 kcal/kg, CP 18.50 and 18.00% for starter diet ($0{\sim}1st$ wk) and power diet ($2{\sim}5th$ wk), respectively There were significant (P<0.01) differences among treatments in weight gain, feed intake and feed conversion ratio. T1 was significantly higher in weight gain and feed intake and love. in feed conversion ratio than other treatments. Production index of T1 (153.42) was far greater than T2 (112.13), T3 (108.40) and T4 (100.95). It was concluded that semibroilers required similar ME and CP to those of regular commercial broilers (highbro).
아연의 공급형태와 첨가수준이 이유자돈의 생산성에 미치는 영향
안성호,엄재상,김대환,백인기 ( S . H . Ahn,J . S . Um,D . H . Kim,I . K . Paik ) 한국축산학회 1998 한국축산학회지 Vol.40 No.1
An experiment was conducted to study the effects of sources and levels of dietary Zn on the performance of the weanling pigs. Twenty four, 12 in each sex, 5 wks old 3-way crossbred (Y × L × D) pigs were assigned to 4 treatments of a 2 × 2 factorial design (Zn source × level). Zn sources were ZnO or methionine-Zn chelate (Met-Zn) and supplemental levels of Zn were 100 or 200ppm. Two pigs of each sex were housed in the raised floor pen and 3 pens were assigned to each treatment. Individual pig weight and feed intake of each pen were recorded weekly for 5 wks. Average daily feed intakes (ADFI) and average daily gains (ADG) were significantly (P$lt;0.01) different among treatments. ADFI and ADG were highest in Met-Zn-200 followed by ZnO-200, Met-Zn-100 and ZnO-100. The effects of supplemental Zn sources and levels and their interaction on ADFI were not significant. The effect of supplemental Zn level on ADG was significant (P$lt;0.05), but those of supplemental Zn source and interaction were not significant. There were no significant differences in feed conversion ratio and alkaline phosphatase activity in serum among treatments. IgG concentrations in serum were significantly (P$lt;0.05) influenced by the source, Met-Zn treatments being higher than ZnO treatments. The effects of level and interaction were not significant on serum IgG, however. The levels of Zn in serum were significantly (P$lt;0.01) different among treatments. Met-Zn-200 showed the highest level followed by ZnO-200, Met-Zn-100 and ZnO-100 in serum Zn level. The effects of source and level of supplemental Zn were significant (P$lt;0.01) on serum Zn. The levels of Zn in the feces were significantly (P$lt;0.01) affected by the level of supplemental Zn. The levels of Fe and Cu in serum and feces were not significantly affected by treatments. In conclusion, the source and level of supplemental Zn influence the performance of weanling pigs. Zn availability from Met-Zn is higher than that from ZnO. High serum IgG in Met-Zn treatments indicates improvement in the immune function. These may affect the performance of weanling pigs.
자돈에 (仔豚) 있어서 혈장단백 (血漿蛋白) 대용제 ( Probline ) 의 급여효과
김대환(D . H . Kim),엄재상(J . S . Um),남두석(D . S . Nam),백인기(I . K . Paik) 한국축산학회 1996 한국축산학회지 Vol.38 No.4
This study was conducted to evaluate the effect of replacing spray dried porcine plasma protein with Probline^ⓡ the performance of weanling pigs. Ninety-six weaned piglets at four weeks of age on average were assigned to one of four dietary treatments; 6% plasma protein(T₁), 4% plasma protein and 2% Probline^ⓡ(T₂), 2% plasma protein and 4% Probline^ⓡ(T₃), and 6% Probline^ⓡ(T₄). All diets were formulated to have iso-caloric and iso-nitrogen levels and were fed to pigs for four weeks. Replacing plasma protein with Probline^ⓡ tended to decrease average daily gain (linear effect; p$lt;0.12) and significantly increased feed/gain (linear effect; p$lt;0.05), but no significant differences were observed in each t-test result between T₁ and T₂ or T₃. Concentration of IgG in serum increased in a linear (p$lt;0.01) fashion as the level of Probline^ⓡ increased in the diet. In conclusion, the result of this trial indicates that one third or two thirds of plasma protein in piglet diet can be replaced with Probline^ⓡ without a significant influence on the performance of weanling pigs.