• Proceedings of the Korean Society of Grassland Science Conference
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• 2001.06a
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• pp.105.1-105
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• 2001

• Proceedings of the Korean Society of Grassland Science Conference
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• 2000.09a
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• pp.111.2-112
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• 2000

• Proceedings of the Korean Society of Grassland Science Conference
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• 2003.06a
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• pp.192.1-192
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• 2003

• 월간낙농육우
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• v.28 no.3 s.311
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• pp.91-96
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• 2008

• Proceedings of the Korean Society of Grassland Science Conference
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• 2003.02a
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• pp.45-65
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• 2003

• Proceedings of the Korean Society of Grassland Science Conference
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• 2005.06a
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• pp.31-41
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• 2005

• 농업기술회보
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• v.51 no.5
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• pp.21-22
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• 2014

호밀은 월동작물 중에서 추위에 가장 강하고, 낮은 온도에서 빨리 성장하는 특성을 가지고 있어 다른 작물보다 한 달 빠른 4월 중 하순에 수확이 가능하다. 이런 장점으로 호밀을 월동기온이 낮아 겨울작물 재배가 어렵거나 벼를 빨리 이앙하는 지역에서 풋베기용이나 사일리지용 조사료로 많이 재배되고 있다. 그러나 호밀은 도복에 약하고, 이삭이 나온 이후 사료의 질이 떨어지기 때문에 수량이 많고 사료가치가 좋은 호밀 조사료를 생산하려면 세심한 관리가 필요하다.

• Journal of Korea Technology Innovation Society
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• v.14 no.2
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• pp.260-278
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• 2011

Along with the launch of National R&D Program in 1982, National R&D licensing policy began to operate in order to expand and promote the outputs of R&D. Even though various studies attempted to draw plans to improve the National R&D licensing policy, most of their focus was limited to the collection and allocation structure of royalty. Thus, with the aim of approaching National R&D licensing policy in a whole cyclic perspective [from collection allocation to execution' post control], this study incorporates interviews with specialists and officials in charge of technology licensing fee, Industry-University-Institute surveys as well as literature review. Through this endeavor, suggestions are made in the aspects of (1) National R&D licensing policy reformation, (2) Technology licensing fee collection and allocation structure refinement, (3)Post control system establishment.

• Journal of The Korean Society of Grassland and Forage Science
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• v.34 no.1
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• pp.60-67
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• 2014

The comparisons between cellulolytic bacteria adhesion on rice straw and fiber digestion in time course during rumen fermentation were studied in situ. The adhesions of cellulolytic bacteria, F. succinogenes. R. albus and R. flavefaciens, were measured by RT-PCR. When the rice straws were incubated at 0. 2, 4, 8, 12 and 24 hours of the in situ rumen, straw was degraded with increasing speed during the incubation and showed the highest disappearance increasing rate (DM g/h) from 8 to 12 hour. The adhesions of F. succinogenes, R. flavefaciens and R. albus were achieved above 80% in 1 hour of in situ rumen fermentation and then keep adhesive population up after the time of fermentation. When the in situ samples were collected at 0, 5, 10, 30 and 60 min to detect the early stages of adhesion on the rice straws ingested into rumen, the numberous adhesive colony of F. succinogenes, R. flavefaciens and R. albus were detected in 5 min. In case of rice straw treated with 0, 2, 4 and 8% NaOH, all of three cellulolytic bacteria showed the increasing trends of adhesion with increasing DM disappearance of rice straw by higher concentration of NaOH at 12 hour of in situ. However, there were showed respectively difference at 24 hour. The present results gave certain evidence that adhesion of cellulolytic bacteria is definitely achieved in early stage of roughage ingestion into rumen, their colony develop the stable communities on roughage in process of rumen fermentation and then fiber degradation is accelerated.

• Journal of Animal Science and Technology
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• v.44 no.3
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• pp.341-350
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• 2002

Twenty four Hanwoo bulls(mean initial body weight 162$\pm$8.1kg) were employed to induce the regression equations on body weight gain and dry matter intake. The diets were fed in a 3${\times}$4 factorial arrangement; three roughage sources(rice straw, hay, corn silage) and four roughage ratios in ration(100, 60, 40, 20%). Bulls were alloted by incomplete turn over design with four replications. Daily body weight gain was greatest in bulls fed the corn silage as a roughage source and the 20% of roughage ratio, respectively. Bulls fed hay or corn silage only as feed kept in their body weight gain during the whole experimental period, however those fed rice straw only were in a negative body gain hereafter fatteningⅠperiod(350kg of body wt.). Dry matter intake per metabolizable body weight was decreased with increasing body weight. Dry matter intake was greatest in bulls fed the corn silage as a roughage source and the 20% of roughage ratio, respectively. The regression equations on daily body weight gain(DG, kg) and dry matter intake(DMI, kg/day) according to body weight(BW, kg) of Hanwoo bulls were derived as follows; DG = －0.842 + 17.5DMI/$BWkg^{0.75}$ DMI = 4.125 + 0.013BW + 1.075DG － 0.045NDF where, NDF is the percentage of neutral detergent fiber in ration.