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RISS 인기검색어
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- 저자 : 김규한(K. H. Kim) (검색결과 44 건)
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꿩의 생산성 향상을 위한 인공점등과 사료개선 3 . Zinc 및 Manganese 의 보충급여가 정강이 , 우모 및 성장에 미치는 효과
김규일(K . I . Kim),양영훈(Y . H . Yang) 한국축산학회 1993 한국축산학회지 Vol.35 No.5
The objective of this study was to improve pheasant starter diet by supplementing with zinc and manganese. A commercial starter diet, which contained 40.5±0.3 ㎎ Zn, and 60.7±0.9 ㎎ Mn/㎏, was used as a basal diet. Zinc carbonate and manganese chloride were added to the basal diet: 1) No supplement (control), 2) 100 ㎎ Zn/㎏ diet(Zn group), 3) 100 ㎎ Mn/㎏ diet (Mn group) and 4) 100 ㎎ Zn + 100 ㎎ Mn/㎏ diet(Zn+Mn group). A total of 420(4 treatments × 3 replications × 35 birds) 3-day-old chicks was fed the experimental diets until 4 weeks of age. No sign of perosis(Mn deficiency) was found in any diet groups. Shank length at 4 weeks of age was significantly(p$lt;0.05) different between Mn(46.8 ㎜) and Zn(44.3 ㎜) groups, and between Mn(46.8 ㎜) and Zn+Mn (44.4 ㎜) groups, but was not different between Mn and control(45.2 ㎜) groups. Mean feather length of Mn(7.6 ㎝) group was highest among the foul groups. Significant(p$lt;0.05) defferences in feather length were found between Mn(7.6 ㎝) and Mn(7.2 ㎝) groups, and between the control(7.6 ㎝) and Zn groups. Percentage of feather fraying, which is the main syndrome of zinc deficiency, was in the range of 1.8(Zn group∼4.3%(control), but the difference was not significant(p$gt;0.05). Average daily gain of the control, Zn, Mn and Zn+Mn groups was 2.5, 2.4, 2.8 and 2.5 g, respectively. and the difference was significant(p$lt;0.05) between Mn and Zn groups. Feed/gain ratio of the control, Zn. Mn and Zn+Mn group was 3.8, 3.9. 4.2 and 4.3, respectively(p$gt;0.05). Results indicate that zinc and manganese contents(Zn, 40.510.3 ㎍; Mn, 60.710.9 ㎍/g diet) in the commercial chick diet are sufficient to meet the Zn and Mn requirements for growth and normal feathering for pheasant chicks. Mn supplementation seemed favorable for daily gain, feed efficiency, feather length and shank length as compared to the control.
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Methionine 첨가가 부로일러의 성장 , 사료효율 , 경제성에 미치는 영향
김규일 ( K I Kim ),한인규 ( I K Han ),이남형 ( N H Lee ) 한국축산학회 1971 한국축산학회지 Vol.13 No.2
This experiment was conducted to investigate the effects of methionine supplementation in broiler diets on the growth rate, feed efficiency and production economy of broiler meat. For this study, 504 starting chickens of Starbro strain were fed for the period of 7 weeks. Treatments consisted of 3 levels of methionine (0, 0.05, and 0.1%) and 4 levels of fish meal (0, 2, 4, and 8%) by factorial arrangement. The results obtained are summarized as follows: 1. It was found that methionine supplementation improved growth rate slightly and was also found that the growth rate for the first 4 weeks could be improved, as the amount of fish meal in the diet was increased. Present data revealed that the best growth of all treatments was achieved when 4% of fish meal was added, although no statistical difference was detected. 2. No difference was observed among the treatments in feed consumption. The feed efficiency was progressively improved, as the level of fish meal was increased(p$lt;0.05). It was noted that feed efficiency could also be improved by supplementing dl-methionine. in the broiler diets. 3. Feed cost required per unit gain was more expensive for those chicks received methionine in the feed than for those unsupplemented group, although the level of fish meal did not affect the production cost of broiler.
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김규한(K.H. Kim),유형석(H.S. Yoo),편종근(C.K. Pyun) 한국해양환경·에너지학회 2005 한국해양환경공학회 학술대회논문집 Vol.2005 No.11
Unyeo beach placed in west coast has been eroded for a long time because of several reasons. In this study, erosion characteristics of Unyeo beach that coastal sand dunes was widely branched out and pre-existed data were investigated. And sediment movement due to environmental change of Unyeo beach was carefully analyzed using result of pre-existed data study and 3D topographical change model test showed present case. In addition, applicable countermeasures for beach erosion in Unyeo Beach were examined by 3D topographical change model test and 2D movable hydraulic model test.
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김문철,김규일,양영훈,김충남,김훈,Kim M.C.,Kim K.I.,Yang Y.H.,Kim C.N.,Kim H. 한국축산환경학회 2006 축산시설환경학회지 Vol.12 No.2
우리나라의 비육돈 성장단계별 돈사의 소요면적이 제주환경에서 적합성 여부를 검토하기 위해 시험이 성장 3단계별로 수행되었고 우리나라에서 추천된 육성돈 돈사의 바닥소요면적 $0.56m^2$을 중간 수준으로 하며 저 및 고밀도 3수준 4반복 난괴법으로 처리하여 일일증체량 및 육질 등을 조사 분석하였다. 성장단계 1(체중 $43{\sim}65kg$ 범위)에서 중 밀도 구(돈사바닥 소요 면적, $0.56m^2/pig$)의 일일증체량은 저나 고 밀도 구 보다 유의적 증가를 보였다(P<0.05). 그러나 성장단계 2(체중$65{\sim}91kg$ 범위)와 3(체중 $91{\sim}105kg$ 범위)에서는 일일 증체량이 처리간 뚜렷한 차이를 보이지 않았다. 마지막 도살시 도체중이나 등 지방 두께는 저밀도구가 중이나 고밀도구 보다 높았다. 최종 육질 등급도 저밀도구에서 높은 추세였다. 결론적으로 볼 때 육성초기(체중 $43{\sim}65kg$ 범위)에는 중간 사육밀도가 다른 두 처리 보다 높은 일당증체량을 보였으나 그 이후는 처리간 사육밀도 차이를 얻지 못 했다. Studies were carried out using growing to finishing pigs to investigate adequate floor space ($m^2/pig$) in Jeju environment. A randomized block design was used to compare the effect of pig performance on 3 stocking rates (low $0.56 m^2/pig$, medium 0.70 and high 0.90). Liveweight gain and feed intake were measured over a 4 week(Growth stage 1 and Growth stage 2) period or a 3 week(Growth stage 3) period. In growth stage 1 (43 to 65 kg body weight ; BW), daily weight gain was significantly higher in the medium stocking rate than in low or high (P<0.05). However, no significant difference in daily weight gain was found among treatments in growth stage 2(65 to 91 kg) or 3 (91 to 105 kg). Dressing percentage, back fat thickness and carcass grade were also not different (P>0.05). In conclusion, daily weight gain of pigs reared in medium density appeared to be higher than in the other groups during the early growing period which is $0.70m^2/pig$ and similar to that recommended by National Livestock Research Institute, RDA.
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