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성경일 ( K I Sung ),홍병주 ( B J Hong ) 한국축산학회 1994 한국축산학회지 Vol.36 No.1
Twenty-lour Holstein-Friesian lactating dairy cows were divided at random into two groups and received the following diets : 1)corn silage plus gross silage 2)corn silage plus alfalfa silage. In addition, all the cows were fed hay and concentrate at 0∼25% of milk yield. The objective was to determine the effects of feeding grass silage or alfalfa silage with corn silage based diets on gross energetic efficiency of milk production in a 24-wk studs. Gross energetic efficiency was calculated as the simple ratio between energy output in milk and energy consumed. Gross energetic efficiency was not different between com silage plus grass silage and com silage plus alfalfa silage. With advancing lactation stage, the gross energetic efficiency decreased in both treatment groups. Dry matter intake were more with corn silage plus bras, silage than com silage plus alfalfa silage because of moisture content. Four percentFCM were lightly higher in animals on corn silage plus alfalfa silage than in those on corn silage plus grass silage. It was concluded that supplementing corn silage with alfalfa silage w as effective in improving milk yield and gross energetic efficiency.
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사초용유채와 연맥 , 호밀 , 라이그라스 , 순무간의 추계생산성 비교
김동암,성경일,조무환 ( D . A . Kim,K . I . Sung,M . H . Jo ) 한국축산학회 1986 한국축산학회지 Vol.28 No.2
This experiment was conducted to evaluate the yield performance of forage rape (Brassica napus subsp. oleifera (Metzg.) Sinsk.) in comparison with the common soiling crops, sucH as oats, rye, hybrid ryegrass and turnips in the late fall period. The crops were seeded on August 25, 1982. Plant height, dry matter percentage and forage yield measurements were taken on October 27, 1982. Forage rape and oats were early in maturity and tall with upright stem. Turnips and rye were later to mature than forage rape and oats, but earlier than hybrid ryegrass in the late fall period. The newer forage rape tended to yield more forage than oats, turnips, rye and hybrid ryegrass. Forage rape, oats and Ponda turnips gave the highest dry matter yield, followed by rye and Polybra turnips. Hybrid ryegrass gave the lowest dry matter yield. Rye, hybrid ryegrass and oats showed a higher percentage of dry matter, but forage rape gave a medium percentage. Based on the results of the experiment it appears that cultivars of forage rape recently introduced from the Netherlands have excellent potential as soiling crops in Korea.
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강원도에서 토양과 기후 데이터베이스를 이용한 청보리의 재배 적지 구분
김경대 ( K D Kim ),성경일 ( K I Sung ),주진호 ( J H Joo ),김병완 ( B W Kim ),팽경륜 ( J L Peng ),이배훈 ( B H Lee ),잘일가세미네자드 ( J G Nejad ),조무환 ( M H Jo ),임영철 ( Y C Lim ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2013 강원 농업생명환경연구 Vol.25 No.3
본 연구는 토양과 기후 데이터베이스를 이용하여 조사료 재배적지 기준 설정 연구의 일환으로 청보리를 대상으로 강원도에서의 재배가능지역을 추정하였다. 토양요인항목으로는 토양 물리성인 토성, 배수, 경사, 유효토심 및 암반노출, 토양화학성인 토양산도, 토양염류도 및 유기물함량을 선정하고 기준값 및 가중치를 설정하였다. 기후요인항목으로는 1월 일최저온도 평균, 3-5월의 평균온도, 9-12월의 5℃ 이상 일수, 10-5월의 강수일수와 강수량 그리고 3월에서 5월까지의 일조시간을 선정하고 기준값 및 가중치를 설정하였다. 토양요인의 관점에서 강원도에서 청보리의 재배가능지 및 재배최적지는 영동지방의 경우 고성, 속초, 양양, 강릉, 동해 및 삼척이며 주로 경사가 완만한 해안지역에 분포하고 있었다. 영서지방은 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선에 주로 분포하고 있었다. 기후요인의 관점에서 강원도는 대부분이 50점이상이었으며, 재배가능지는 고성, 속초, 양양, 강릉, 동해 및 삼척의 해안지역과 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선 일부 지역이 포함되었다. 이상의 결과로부터 강원도에서 토양과 기후요인을 고려한 청보리의 재배가능지 및 재배최적지는 영동지방의 고성, 속초, 양양, 강릉, 동해 및 삼척의 해안지역을 중심으로 가능하였고, 영서지방의 철원, 양구, 춘천, 원주, 횡성, 평창 및 정선 일부지역에서 재배가능지로 나타나고 있다. 향후 청보리의 재배적지 연구를 위해서는 일조시간에 대한 전자정보의 확보가 이루어진다면, 더욱 정밀한 청보리 재배 적지의 예상이 가능할 것으로 판단된다. As a part of establishing suitability classification for forage production, use of the national soil and climate database was attempted for Whole crop barley (Hordeum vulgare var. hexastichon (L.) Asch.) in Gangwon Province. The soil data base were from Heugtoram of the National Academy of Agricultural Science, and the climate data base were from the National Center for Agro-Meteorology, respectively. Soil physical properties including soil texture, drainage, slope available depth and surface rock contents, and soil chemical properties including soil acidity and salinity, organic matter content were selected as soil factors. The criteria and weighting factors of these elements were scored. Climate factors including average daily minimum temperature in January, average temperature from March to May, the number of days of which average temperature was higher than 5℃ from September to December, the number of days of precipitation and its amount from October to May of the following year, and sunshine hours from March to May were selected, and criteria and weighting factors were scored. The electronic maps were developed with these scores using the national data base of soil and climate. Based on soil scores, the area of Goseong, Sogcho, Yangyang, Gangreung, Donghea and Samcheog in east coastal region with gentle slope were classified as the possible and/or the proper area for Whole crop barley cultivation in Gangwon Province. The lands with gentle or moderate slope of Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun in west side slope of Taebaeg mountains were classified as the possible and/or proper area as well. Based on climate score, the east coastal area of Goseong, Sogcho, Yangyang, Gangreung and Samcheog could be classified as the possible or proper area. Most area located on west side of the Taebaeg mountains were classified as not suitable for Whole crop barley production. In scattered area in Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun, where the scores exceeded 50, the Whole crop barley cultivation should be carefully managed for good production. As a results, based on soil with climate the area of Goseong, Sogcho, Yangyang, Gangreung, Donghea and Samcheog in east coastal region with gentle slope and some area of Cheolwon, Yanggu, Chuncheon, Wonju, Hweongseong, Pyungchang and Jeongsun were classified as the possible and/or the proper area for Whole crop barley cultivation in Gangwon Province. For better application of electronic maps of whole crop barley, acurate study will be possible if a data comfirmed on th shine hours is achieved.
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( Kafle,G. K ),박종태 ( J. T. Park ),김상헌 ( S. H. Kim ),성경일 ( K. I. Sung ) 강원대학교 농업생명과학연구원(구 농업과학연구소) 2011 강원 농업생명환경연구 Vol.23 No.4
The anaerobic co-digestion of Chinese cabbage waste silage (CCWS) and swine manure (SM) was carried out at mesophilic temperature (36-38oC) under batch mode. The mixtures ratios of SM and CCWS were 100:0, 75:25, 67:33, 33:67 and 0:100 (SM:CCWS) on a volatile solid (VS) basis at OLR of 16 gVS/L and F/M ratio of 1.6. After 40 days of digestion, biogas yield was calculated to be 425, 408, 410, 342 and 196 mL/gVS added for the SM:CCWS (100:0), SM:CCWS (75:25), SM:CCWS (67:33), SM:CCWS (33:67) and SM:CCWS (0:100), respectively. The result also showed that CCWS content in the feed can be used up to 67% (VS basis) without decreasing the methane yield per unit feedstock input (mL/g substrate added).
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김창혁,박병기,오상집,성경일,김현숙,홍병주,신종서,Kim, C.H.,Park, B.K.,Ohh, S.J.,Sung, K.I.,Kim, H.S.,Hong, B.J.,Shin, J.S. 한국축산학회 2005 한국축산학회지 Vol.47 No.4
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$^{\circ}C$)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<0.05), yeast 첨가수준 1.0 이상에서는 일정한 양의 알코올 이 생성되었다. 발효 초기의 LYCN은 yeast 첨가수준이 높을수록 높게 나타났으나(P<0.05), 발효 48시간 후의 LNCN은 0.1% 이하에서는 유의적으로 낮게 나타났다(P<0.05). 발효 온도에 따른 알코올 생성량은 발효 온도 30 및 40$^{\circ}C$에서 유의적으로 높은 결과를 보였으며(P<0.05), 30$^{\circ}C$와 40$^{\circ}C$ 간의 알코올 생성량은 30$^{\circ}C$에서 높은 경향이었다. 발효 온도에 따른 pH는 발효 온도가 낮을수록 발효 24시간까지 급격히 감소하는 것으로 나타났다(P<0.05). 이상의 결과로 미루어 맥주박의 사료적 가치를 높이기 위해 yeast의 첨가량, 당밀(발효기질), 발효온도 및 발효시간 등의 요인을 고려하였을 경우, 본 시험의 조건하에서 원활한 알코올 발효와 발효사료의 품질을 향상시키기 위한 적정 발효조건은 당밀 5%와 yeast 1%를 첨가하여 30$^{\circ}C$에서 24시간 동안 발효시키는 것이 가장 바람직한 것으로 나타났다. To determine the optimum fermentation condition, the 50:50 feed mixture of both crushed corn and wet brewer’s grain were anaerobically fermented at various conditions. Three supplementation levels(0, 2%, and 5%) of molasses, five supplementation levels(0, 0.1%, 0.5%, 1.0%, and 2.0%) of yeast and five different incubation temperatures(4$^{\circ}C$, 10$^{\circ}C$, 30$^{\circ}C$, 40$^{\circ}C$ and 50$^{\circ}C$) were tested to determine the optimum fermentation conditions. During fermentation, alcohol concentration, live yeast cell number (LYCN) and pH values of the mixture were analyzed. Alcohol concentrations of the fermented feed mixtures were proportionally increased with increasing level of molasses supplementation. After 24hr fermentation, alcohol concentrations at 0.1%, 0.5%, 1.0% and 2.0% of yeast supplementation was 1.9%, 2.4%, 3.1% and 3.1%, respectively. These results indicate a proportional increase of alcohol concentration with the increasing supplementation of yeast (P<0.05) up to 1%, thereafter showing plateau at 2% supplementation. LYCN was relatively high with more than 0.5% yeast supplementation, whereas the value was significantly low(P<0.05) at 0.1% yeast supplementation. Alcohol production was significantly higher at 30$^{\circ}C$ and 40$^{\circ}C$ than other incubation temperatures (P<0.05), with the highest concentration at 30$^{\circ}C$. pH was rapidly decreased until 24 hours of incubation with steeper decrease at lower temperatures(P<0.05). Based on there results, optimum fermentation conditions for the alcoholic-fermented feed production could be achieved with 5% supplementation of molasses, 1% supplementation of yeast, and 24hr long incubation at 30$^{\circ}C$.
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Recombinant Bovine Somatotropin 장기간 투여가 젖소의 산유반응에 미치는 영향
홍병주(B . J . Hong),정준(J . Jeong),성경일(K . I . Sung),여인서(I . S . Yuh),김종복(J . B . Kim),장병선(B . S . Chang),송지용(J . Y . Song) 한국축산학회 1993 한국축산학회지 Vol.35 No.2
The effects of recombinant bovine somatotropin(rBST) on various responses of dairy cows were extensively investigated for a 270-day long experiment. Thirty two lactating Holstein cows were randomly assigned to the three levels of rBST treated groups (12.5㎎/h/d, 25.0㎎/h/d, and 500㎎/h/14d) and the non-treated control. Dairy properties investigated were: 1) the milk yield and composition; 2) blood metabolites; 3) levels of insulin like growth factor-1 (IGF-1) and BST in milk and serum; 4) health and reproductive characteristics; and 5) economical profitability. Milk yield and 4% fat corrected milk(4% FCM) yield were significantly increased in the rBST treated groups in comparison with control. The group treated with 25㎎/h/d showed an improvement in 4% FCM yield over the other two treated groups. The similar results were also obtained in the analyses for the milk components(protein, fat, lactose and SNF). The number of somatic cell count (SCC) was substantially decreased in the 25.0㎎ rBST treated group than the other groups. For each of early, middle, and late lactation stages, the influence of rBST treated groups were not noticable in the early lactation but were very remarkable in the middle and late lactation. rBST treated cows showed effects in increasing levels of glucose and triglyceride in blood, and moderatly increased IGF-1 and BST in serum, however, did not affect those in milk. Metabolic disorders, mastitis, and reproductive performance were not affected by rBST treatment. The differences of monetary return with and without treatment of rBST was of great significance.
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