• 월간낙농육우
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• v.36 no.4
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• pp.150-156
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• 2016

• 월간낙농육우
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• v.36 no.3
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• pp.124-130
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• 2016

• 월간낙농육우
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• v.34 no.4
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• pp.145-148
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• 2014

• Proceedings of the Korean Society of Grassland Science Conference
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• 2002.09a
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• pp.40.1-40
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• 2002

• 월간낙농육우
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• v.32 no.10
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• pp.124-130
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• 2012

• Journal of The Korean Society of Grassland and Forage Science
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• v.12 no.3
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• pp.127-133
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• 1992

• Proceedings of the Korean Society of Crop Science Conference
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• 2022.04a
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• pp.78-78
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• 2022

• 월간낙농육우
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• v.26 no.5 s.289
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• pp.104-107
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• 2006

한-미 FTA 대응활동/미국산쇠고기 수입재개 대응활동/ 농지법 개정활동/집유체계 개편관련 논의 동향/식목일 식재행사(우리목장푸르게캠페인) 개최/농업통상정책협의회 참석/축산현안 설명회참석/농업농촌종합대책 점검을 위한 농업인단체장 간담회 참석/남북농민대표자회의 참석/혼합분유 품목분류 세분화 추진/축산환경정책포럼 위원 추천/목장부지 수용관련 건의/축산분쟁 사례조사 결과 보고/황사발생기간 중 관리수칙 준수철저 요청/전남도지회 운영위원회 개최/전북도지회 운영위원회 개최/경남도지회 미국쌀 수입 반대 연대투쟁/2006년도 봄재배용 목초 및 사료작물 종자 정산 중 /2006년도 가을재배용 목초 및 사료작물 종자 도입 추진중/조사료 공급/송아지 지사제 공급/낙농물티슈 "골드링크"공급/배합사료업체 축우담당자 초청간담회 개최

• Journal of The Korean Society of Grassland and Forage Science
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• v.33 no.4
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• pp.263-268
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• 2013

We investigated the range of linoleic acid concentrations in different forage species and harvest stages. The linoleic acid concentrations in main cultivated grasses and forage crops were analyzed at three harvesting dates in Korea. The experiment compared 19 species of main grasses and forage crops, including eight species of grasses (Perennial ryegrass, Reed canarygrass, Tall fescue, Timothy, Bromegrass, Kentucky bluegrass, Orchardgrass and Wheat grass), six legumes (White clover, Red clover, Sweet clover, Crimson clover, Alfalfa and Hairy vetch) and five forage crops (Italian ryegrass, Barley, Rye, Oat and Rape) in Korea with three cuts (8 May, 19 May and 28 May). The linoleic acid concentrations of Reed canarygrass and Timothy were the highest, and Bromegrass was the lowest among the grass species. All grass species had high concentrations of linoleic acid at the late May harvest stage but were low at the mid May harvest stage. Legumes had higher linoleic acid concentrations than those of grasses, and harvesting in mid-May resulted in the highest linoleic acid concentration. Rape had the highest linoleic acid concentration and rye showed high concentrations of linoleic acid when compared with those of forage crops. All species of grasses and forage had decreased linoleic acid concentrations by the harvest stage. We have demonstrated opportunities to change the composition of ruminant products through breeding, selection, and management of grasses for altered levels of linoleic acid as a precursor to conjugated linoleic acid.

• Korean Journal of Environmental Agriculture
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• v.31 no.4
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• pp.308-312
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• 2012

BACKGROUND: The nutrient balance in Korea during 1985-2006 had continually increased and maintained the highest levels among OECD countries. The use of green manure crops such as barley and hairy vetch is common practice for reducing chemical fertilizer application and maintaining soil fertility. However, green manure crops can also be used as a livestock feeding material which may reduce nutrient balance in the national scale. We calculated nitrogen and phosphate balance under green manure-rice cultivating system where all green manure was removed and used for feeding livestock. METHODS AND RESULTS: The barley and hairy vetch grown in pure stands or in mixtures with different sowing rates were tested for rice cultivation without chemical fertilization. The conventional fertilization (NPK) for rice cultivation was selected to compare nutrient balance with green manure-rice cultivation. Nitrogen and phosphate balance were calculated according to the surface balance method of the PARCOM guidelines. Total aboveground biomass of mixture (barley and hairy vetch) was higher compared to that of pure barley or hairy vetch. Among the mixture with barley and hairy vetch, the highest aboveground biomass was observed in B75H25 (barley 75%+hairy vetch 25%). The nitrogen and phosphate balance in the B75H25 mixture was-104 kg N/ha and-50.3 kg P/ha, respectively. CONCLUSION(S): The barley and hairy vetch mixture proved to be a very effective strategy for biomass production of green manure. The amount of nitrogen and phosphate fertilizer to be applied is estimated to be 104 kg N/ha and 50.3 kg P/ha in order to maintain soil fertility if all green manure and rice straw were removed from rice field for livestock feeding.