국내 Holstein 종의 유생산에 미치는 환경효과 보정계수 추정

고문석(M . S . Ko),이학교(H . K . Lee),신영수(Y . S . Sin),조윤연(Y . Y . Cho),김내수(N . S . Kim) 한국축산학회 1989 한국축산학회지 Vol.31 No.11

This study was carried out to estimate the coefficients for the adjustment of environmental effects on milk yield. The 2,438 lactation records of Holstein Cows which had raised at National Animal Breeding Institute from (1969 to 1985 were used in this analysis. The parities, the season within parity and the month of age within parity at parturition of cows were included to the environmental factors for the adjustment. 1. The parity, season and year showed highly significant(p (0.01) effects on milk yield. 2. The total milk yield of the season Ⅰ (Nov.-Apr.) appeared about 300㎏ higher than those of the season Ⅱ (May.-Oct.) within each parity. The coefficients for the season`s were estimated on the basis of the season Ⅰ . The factors for season 11 were 1.09, 1.07 and 1.04, in 1st, 2nd and 3rd to 4th parity, respectively. 3. The adjustment factors on different parities were 1.00, 0.932 and 0.817 on the basis of the first parity and 1.147, 1.069 and 1.00 on the basis of the third and fourth parity. 4. The linear regression of milk yield for ages at calving were estimated Y₁= 2,272.6 + 72.7 X₁,Y₂= 3,701.0 + 23.5 X₂, Y₃= 3,827.3 + 19.3 X₃, in 1st, 2nd and 3rd and 4th parity respectively. The adjustment factors were made on the basis of 26 month for the first parity and it ranges from 1,024 at 24 month to 0.85 at 36 month. The factors for 2nd parity which ranged from 1.03 at 34 month to 0.93 at 54 month were based on 40 month and those of third and fourth parity which ranged from 1.05 at 46 month to 0.93 at 77 month were based on 59month. 5. The milk yield adjusted by proposed factors were estimated 5,011㎏ for the first parity, 5,087㎏ for the second and 5,018㎏ for the third and fourth. On the other hand when same data were adjusted by DHIA factors the milk yield were estimated 5,384㎏, 5,167㎏ and 5,072㎏ respectively. This showed that the proposed factors adjusted raw data more uniformly among parities than those of DHIA factors.

소의 모발 멜라닌 색소 함량의 품종별 비교 분석

이성수 ( S. S. Lee ),강승률 ( S. R. Kang ),한상현 ( S. H. Han ),조인철 ( I. C. Cho ),신광윤 ( K. Y. Shin ),조용일 ( Y. I. Cho ),강태영 ( T. Y. Kang ),고문석 ( M. S. Ko ),양영훈 ( Y. H. Yang ) 한국동물자원과학회 2007 한국축산학회지 Vol.49 No.1

붉은사슴과 엘크에서 SRY와 ZFX-ZFY 유전자의 Duplex PCR 기법을 이용한 성 판별

한상현 ( S. H. Han ),이성수 ( S. S. Lee ),고문석 ( M. S. Ko ),조인철 ( I. C. Cho ) 한국동물자원과학회 2007 한국축산학회지 Vol.49 No.1

돼지MC4R 유전자 892G>A 다형성이 비육돈의 도체형질에 미치는 영향

한상현 ( S. H. Han ),이성수 ( S. S. Lee ),고문석 ( M. S. Ko ),성필남 ( P. N. Seong ),박범영 ( B. Y. Park ),조인철 ( I. C. Cho ) 한국동물자원과학회 2007 한국축산학회지 Vol.49 No.5

초지형 축산의 어메니티 및 경제성 평가에 관한 연구

천동원(D. W. Cheon),이상영(S. Y. Lee),박민수(M. S. Park),박형수(H. S. Park),황경준(K. J. Hwang),윤세형(S. H. Yun),고문석(M. S. Ko) 한국초지조사료학회 2007 한국초지조사료학회지 Vol.27 No.4

본 연구는 제주 초지의 경제적 가치를 평가하여 보전의 타당성 및 정책지원 방안을 제시하기 위해 수행하였다. 경제적 가치를 추정함에 있어 환경적 가치, 사회문화적 가치로 나누어 평가하였으며 환경적 가치는 대체법을 이용하였고 사회문화적 가치평가는 일반적으로 많이 이용되고 있는 CVM 평가법을 적용하였으며 각종 Bias(편의)를 해결하기 위해 가상 상황을 설정하여 질문하는 이단계 이선선택법을 적용하였다. 제주초지의 다원적 기능은 토양침식방지, 홍수방지, 축산분뇨처리, 대기정화 등과 같은 환경적 기능과 사료생산기능 그리고 보건, 휴양, 정서함양 등과 같은 사회문화적 기능이 있다. 이의 경제성을 분석한 결과 제주초지의 연간 다원적 기능가치는 총 397,115~418,995백만원으로 평가되었다. 첫째, 초지의 토양침식방지 효과의 가치평가는 초지의 질소고정금액과 객토 유실비를 환산하여 평가하였으며 나지 대비 평가액은 19,425~20,038백만원이었다. 둘째, 제주도내에서 발생한 축산분뇨 155만4,000톤(2005년) 중 초지에서 처리할 수 있는 총살포 가능량을 해양투기 등의 위탁처리비에 의해 추산하여 계산한 결과 8,262~11,016 백만원으로 평가할 수 있다. 셋째, 초지의 대기정화 능력을 평가한 것으로 대기오염의 대표적 물질인 이산화탄소를 흡수하는 량과 산소를 방출하는 량을 산출하여 평가하였다. 대기정화기능 평가액은 24,803~28,586백만원으로 추산되었다. 넷째, 제주도 초지의 강수량은 우리나라에서 제일 높으며 지구온난화의 영향 등으로 인한 집중호우, 태풍 등 풍수재해가 증가하고 있는 추세이다. 본 연구에서는 초지의 홍수방지 댐의 홍수조절 기능을 기준으로 하여 경제적 가치를 측정하였다. 홍수 조절능력은 ㏊당 791ton으로 환산하여 추산하였다. 홍수방지 기능의 평가액은 1,691~10,723백만원으로 추산되었다. 다섯째, 초지의 생산성 평가는 제주도 초지의 주초종인 오차드그라스, 페레니얼라이그라스, 톨페스큐 등의 혼파초지의 총생산량을 추정하고, 이의 건물생산량을 제주도에서 유통되는 가격으로 환산하여 평가하였다. 평가액은 70,493~76,190백만원으로 추산되었다. 마지막으로 제주도 초지가 지닌 사회문화적 공익기능, 즉 농촌경관제공기능, 교육·휴양처제공기능, 전서함양기능에 대한 제주 방문객들의 평가는 매우 높았으며 특히 존재가치 및 상속가치가 높아 지속적으로 보전해야만 한다는 의견이 지배적인 것으로 나타났다. 기부금 조성에 찬성하는 사람들에 대해 조사한 결과를 이용하여 제주 초지의 공익적 경제 가치를 계산한 결과에 의하면 '06년 2,724억원으로 '11년에는 3,220억원이 되어 제주 초지의 환경보전 및 사회문화적 공익적 경제 가치는 매년 증가할 것으로 전망되었다. 이와 같이 제주도에서 초지가 존재하므로서 갖는 여러 가지 다원적 기능의 가치는 우리가 평소에 쉽게 평가절하하고 간과하기 쉬운 환경적 요소를 다방면에서 검토하고 조사·분석한 결과로 초지의 중요성을 구체적으로 구명하였다. 정부는 초지의 규제완화를 추진하고 있다. 그러나 초지에 대한 무분별한 개발은 오히려 제주의 환경파괴, 소중한 관광자원의 소실, 수백 년간 가축방목지로 활용되어온 축산기반의 붕괴, 유기축산 실현과 청정 환경을 유지하는 생태자원보고 천혜의 조건을 파괴하는 것으로 초지의 전용은 미래 세대를 위한 존재가치, 환경보존 및 축산업 유지등 여러 관점에서 보면 초지를 유지 보전하는 것이 제주도의 관광 상품성을 제고할 수 있어 더 많은 부가가치를 창출할 수 있을 것으로 사료된다. This study is conducted to evaluate economical value of Jeju grassland and validity of its preservation, and draw up several measures to support. To measure its economical value, this study examined its environmental value and social and cultural value. For environmental value, this study used replacement method while it applied CVM method, a widely used method, to assess social and cultural value and two-level two-best choice selection method, which ask questions by assuming virtual circumstances to avoid reflecting some biased opinions. Jeju grassland has multiple functions-environmental functions such as preventing soil corrosion and flood, handling animal excrement, and purifying air, and social and cultural functions such as promoting physical and mental health and providing recreation places. From the results of the feasibility study, Jeju grassland's annual multiple functions are assessed to have a total 397,115~418,995 million won worth. In addition, it is found that Jeju visitors recognize Jeju grassland for its functions to contribute to public interests. That is, they think it can provide attractive views and educational and recreational places and promote emotional development. Especially, many people presented their ideas that it be continuously preserved since it is worthwhile for us and our next generations. To preserve grassland's cultural resource, which create a huge economic value like this, the Government has to support a certain amount of financial aid for turning to a better grassland environment and its maintenance to realize environment-friendly livestock farming on Jeju Island and promote its tourism industry and consequently, add more value to Jeju.

5ml 스트로에 보존한 돼지 액상정액의 생존성과 수정능력에 관한 연구

정행기(H . K . Chung),김학규(H . K . Kim),고문석(M . S . Ko),김인철(I . C . Kim),최진성(J . S . Choi),이광원(K . W . Lee),손동수(D . S . Son),김현(H . Kim),지설하(S . H . Chee),박창식(C . S . Park) 한국축산학회 1989 한국축산학회지 Vol.31 No.3

This experiment was carried out to test the efficiency of BF5 diluent in improving the length of maintenance of the fertilizing capacity of liquid boar semen in 5ml maxi-straw. The sperm-rich fraction of each ejaculate was slowly cooled to room temperature by 2 h after collection. Semen was diluted with BF5 diluent to provide about 20 x 10` sperm/ml. Semen was cooled in a waterbath to 51℃ over a 2-h period and BF5(+2 % glycerol) diluent was added to cooled semen(1:1). Straws were imm ediately filled with 5ml of semen and steel or glass balls were used to seal the ends of the straws. The straws were horizontally placed on a metal rack and stored at 51c in a refrigerator. At insemination the straw was rediluted with 75ml BTS diluent. The BF5 diluent maintained boar sperm fertilizing capacity for 9 days of in vitro storage. Conception rate, farrowing rate and number of pigs born alive per litter of diluted semen stored at 51℃ for 9 days were 70%, 50% and 9.6, respectively.

젖소의 60일유량 , 최고유량 , 최고유량 도달일수와 305일유량에 관한 유전성분 분석

안병석(B . S . Ahn),정하연(H . Y . Chung),이현준(H . J . Lee),고문석(M . S . Ko),김내수(N . S . Kim) 한국축산학회 1994 한국축산학회지 Vol.36 No.6

This study was carried out to estimate the genetic parameters on milk yield for 60 days and 305 days, peak milk yield and days at peak production. The data from a total of 532 head which were tested at the National Animal Breeding Institute from 1992 to 1993 was analyzed. The heritabilities for 60 day and 305 day milk yield were 0.65 and 0.34, while those for peak milk yield and days at peak production were 0.69 and 0.06. respectively. The genetic correlations between 60 days and 305 days milk yield, between peak milk yield and 60 day milk yield, and the interval between days at peak production and 60 day milk yield were 0.50. 0.99 and 0.05. respectively. Also the interval between 305 day milk yield and peak milk yield days, between 305 day milk yield and days at peak production, and between peak rink yield and days at peak production were 0.41, 0.68 and 0.26, respectively.

액체질소콘테이너를 이용한 돼지정액의 동결

김학규(H . K . Kim),고문석(M . S . Ko),김인철(I . C . Kim),정행기(H . K . Chung),이광원(K . W . Lee),손동수(D . S . Son),김현(H . Kim),지설하(S . H . Chee),박창식(C . S . Park) 한국축산학회 1989 한국축산학회지 Vol.31 No.3

This study was carried out to investigate the effect of aluminium rack distance from liquid nitrogen surface in liquid nitrogen container on post-thaw sperm motility and NAR acrosome in maxi-straws. The post -thaw sperm motility and NAR acrosome for 15 cm from the liquid nitrogen surface were 57% and 56 % after 0.5 h incubation at 37℃, and 31 % and 38 % after 2 h incubation. The straws frozen from 5 cm to 25 cm above the liquid nitrogen surface did not show any significant differences on post-thaw sperm motility and NAR acrosome. The utilization of this deep-freezing method is considered to be acceptable under practical farm conditions.

미생물 발효제 처리 돈분액비 시용이 사료작물생산성 및 토양의 이화학적 성상에 미치는 영향

황경준(K. J. Hwang),박형수(H. S. Park),박남건(N. G. Park),고문석(M. S. Ko),김문철(M. C. Kim),송상택(S. T. Song) 한국초지조사료학회 2006 한국초지조사료학회지 Vol.26 No.4

본 시험은 제주도내 발생하는 돈분액비의 활용도를 높이고 화학비료 사용 절감 및 대처하는 목적으로 수행되어졌다. 품종 간의 건물수량은 수수×수단그라스가 1,480.4 ㎏/10a 로 가장 높았으며, 수수×수수교잡종이 1,444.9.5 ㎏/10a, 옥수수 1,054.6 ㎏/10a로 나타났다(p<0.01). 처리별 건물수량은 미생물제제를 처리한 돈분액비가 1,562 ㎏/10a로 높게 나타났으며, 돈분액비 시용구는 1,410 ㎏/10a, 화학비료구 1,008 ㎏/10a로 나타났다(p<0.01). 토양성분은 시험 전 1.32 ppm이었던 Zn 함량이 시험 후 화학비료구, 돈분액비구, 미생물제제를 처리한 돈 분액비구에서는 4.23, 4.12, 4.00 ppm으로 나타났으며, Cu 함량은 시험 전 0.59 ppm, 시험 후에 토양에서는 화학비료구, 돈분액비구, 미생물 제제를 처리한 돈분액비구에서는 각각 0.821, 0.854, 1.027 ppm으로 높아졌다. 이 시험의 결과로 미생물제제를 처리한 돈분액비가 화학비료구나 일반돈분액비에 비해 비료성분이 떨어지지 않으며 관수효과까지 있어 사료작물에 적합한 비료자원이라 할 수 있겠다. This study was carried out to determine the effect of chemical fertilizer and two fermented types of pig slurry on the dry matter(DM) yield of three crops and chemical properties. The experiment design was a slit plot with three replications. Main plots consist of three crops : sorghum×sudangrass hybrid(‘SS405’), sudangrass(‘Jumbo’), corn(‘DK501’). Sub plots consist of three treatments : chemical fertilizer (CF N-200, P-150, K-150 ㎏/ha), aerobic fermented pig slurry (APS 200 ㎏ N/ha), and aerobic fermented pig slurry treated with probiotics (APS+P 200 ㎏ N/ha). Plant heights with three crops per sudangrass (380.3㎝) was the longest (p<0.01). Dry matter yield of aerobic fermented pig slurry treated with probiotics was the highest the other treatments (p<0.01). Crude protein (CP) content were highest in sorghum×sudangrass hybrid than in the other crops. Cupper content(%) were highest in aerobic fermented pig slurry treated with probiotics than in the other treatments.

Holstein 젖소의 생산형질에 대한 305일 보정계수 개발

이광전(K . J . Lee),강민식(M . S . Kang),박경도(K . D . Park),최윤석(Y . S . Choi),고문석(M . S . Ko) 한국축산학회 1995 한국축산학회지 Vol.37 No.5

This study utilized 29,557 lactation records collected by the KAIA(Korea Animal Improvement Association). DCIC(Dairy Cattle Improvement Center), etc, from 19A5 to 1993 to develop 305-day adjustment factors, and the data consisted of 261.454 test day records. The results obtained were a, follows; 1. Base 305-day yields were calculated on the least square means of lactation stages by parity, season, and age group. 2. It was reasonable to develop multiplicative factors because production lee el was increased and relationships between mean and variance exist. 3. Correlation coefficients between actual 305-day yields and adjusted yields by new correction factors developed by chic study were higher than those proposed by USDA correction factors. 4. It was predicted that accuracy of adjustment factors for fat and protein was higher than that of milk yields, because production levels decreased linearly according to lactation stages, and the trend of SNF yields was similar to that of milk yields. 5. It was reasonable that parities were grouped such as Ist parity, 2nd and over, to study effects of parities for production traits. 6. New correction factor, developed by this study were higher than the USD. As factors, especially after the middle stage of lactation. The problem of underestimation by USDA correction factors can be, therefore, corrected.