• 한국초지조사료학회지
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• 제12권3호
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• pp.127-133
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• 1992

• Asian-Australasian Journal of Animal Sciences
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• 제10권3호
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• pp.289-292
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• 1997

A grazing trial was carried out to determine the effects of different grass/legume pastures on forage production, legume proportion, nutritive value, and animal performance. The pasture mixtures were mainly orchardgrass (OG) + ladino clover (T1), OG + alfalfa (T2), perennial ryegrass + alfalfa (T3), and grass alone mainly OG (T4). The pastures were rotationally grazed 7 times with heifers which had an initial liveweight of about 243 kg in 1991 and 1992. The average plant height at each grazing was 32.4 cm. The annual dry matter yield ranged from 9.19 MT in T4 to 9.61 MT/ha in T3, but no significant difference among different mixture combinations was found. The proportion of ladino clover in T1 mixtures rapidly increased from 21% to 68% during the grazing season. However, the proportion of alfalfa in T2 and T3 ranged from 12% to 23%. The contents of crude protein and calcium, respectively, in the forages were highest in T1 (23.2%, 0.68%) and lowest in T4 (18.5%, 0.13%), while crude fiber content showed the opposite trends. Liveweight gain was greatest on T1 (1.073 kg) and lowest on T4 (643 kg). It was concluded that pasture mixtures containing legume (ladino clover) can increase forage nutritive value and animal performance.

• 한국관개배수논문집
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• 제18권1호
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• pp.18-24
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• 2011

The suitable area of forage crop field was calculated under the assumption that all of the liquied manure would be used to nutrient of crops at the Saemangeum crop-livestock complex. At first, Korean cattle and dairy cattle were selected and swine was excluded becausr of high pollution availability. When forage crop was calculated from nutrient amounts of manure of livestocks and standard applicable fertilizer quantity to the selected forage crops, 232ha (278ha including infrastructure part) was determined to be appropriate in case of 2500 heads of Korean cattle and 300 heads of dairy cattle were raised. From the result by that calculated ares (232ha) to forage crop feeding could be possible to the Korean cattle and dairy cattle feeding using TDN index, more than 217ha of forage crop fields would be satisfied nutritionally.

• 한국초지조사료학회지
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• 제21권4호
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• pp.211-216
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• 2001

In an effort to investigate the germination and growth characteristics of tannin containing forage crops (such as chicory, birdsfoot trefoil, Lotus pedunculatus, sulla, lespedeza, crownvetch, sainfoin), germinativity, seedling vigor, and productivity were studied. Although the cumulative germination percentage (CGP) of chicory and birdsfoot trefoil was low, the germination rate(GR) and days to reach 50% of final germination(Gt50) were excellent. Crownvetch, lespedeza and sainfoin showed poor germination. Chicory seeds were light but the rate of emergence and establishment were high. Seeds of Lotus pedunculatus and birdsfoot trefoil were also small, but their rates of emergence and establishment were quite good. On the other hand, seeds of sainfoin and crownvetch were heavy but their emergence and establishment rate were very low. Lespedeza was the best in getting over the hot summer, and crownvetch also survived well during summer. Chicory was good in productivity and early growing but its persistence was not good. In case of birdsfoot trefoil and Lotus pedunculatus their early growing were slow but their productivity and persistence were fairly well. Lespedeza, crownvetch, and sainfoin showed poor growth in Korea. Based on the results of this study it can be concluded that chicory would be better to use as short term high productive forage crop, and Lotus pedunculatus and birdsfoot trefoil could be used as continuous functional forage crops in Korea. (Key words : Tannin. Germination. Chicory. Birdsfoot trefoil, Lotus pedunculatus)

• 한국초지조사료학회지
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• 제41권4호
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• pp.242-249
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• 2021

Forage crop management is severely challenged by global warming-induced climate changes representing diverse a/biotic stresses. Thus, screening of valuable genetic resources would be applied to develop stress-tolerant forage crops. We isolated two NAC (NAM, ATAF1, ATAF2, CUC2) transcription factors (ANAC032 and ANAC083) transcriptionally activated by multi-abiotic stresses (salt, drought, and cold stresses) from Arabidopsis by microarray analysis. The NAC family is one of the most prominent transcription factor families in plants and functions in various biological processes. The enhanced expressions of two ANACs by multi-abiotic stresses were validated by quantitative RT-PCR analysis. We also confirmed that both ANACs were localized in the nucleus, suggesting that ANAC032 and ANAC083 act as transcription factors to regulate the expression of downstream target genes. Promoter activities of ANAC032 and ANAC083 through histochemical GUS staining again suggested that various abiotic stresses strongly drive both ANACs expressions. Our data suggest that ANAC032 and ANAC083 would be valuable genetic candidates for breeding multi-abiotic stress-tolerant forage crops via the genetic modification of a single gene.

• 한국작물학회지
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• 제59권4호
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• pp.521-525
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• 2014

남부지역에 비해 상대적으로 사료맥류의 생산이 적은 중북부지역에서 안정적인 조사료 최대생산과 사료가치 향상을 위한 최적 혼파조합, 혼파비율, 재배법 확립을 위하여 연구한 결과 트리티케일과 크림슨클로버 혼파에서는 건물수량은 트리티케일에 크림슨클로버를 8:2의 비율로 처리한 혼파조합에서 1,464 kg/10a로 가장 많았으며, 트리티케일이나 크림슨클로버 단파보다 혼파에서 수량이 많았다. 혼파 비율에 따른 수량 차이는 없었으나 파종유형에 따른 수량차이를 보면 조파보다는 산파에서 수량이 많았다. 트리티케일과 콩과작물의 혼파조합 및 비율에 따른 사료가치에서 조지방(CP) 함량은 크림슨클로버 단파구가 17.2%로 트리티케일 단파구의 7.4%에 비해 높았으며, 트리티케일과 크림슨클로버를 7:3의 비율로 혼파한 시험구에서 조단백질 함량이 9.0%로 개선되어 트리티케일과 콩과 작물의 혼파에 의하여 단백질을 포함한 사료가치의 향상이 가능할 것으로 생각되었다.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2009년도 추계학술대회 논문집
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• pp.514-517
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• 2009

Anaerobic biodegradability(AB), which can be determined with the ultimate methane yield by the decomposition of organic materials, is one of the important parameters for the design and the operation of anaerobic digestion plant. In this study, Biochemical Methane Potential(BMP) test has been carried out to evaluate the methane yield of agro-industrial biomasses such as cattle manure, Italian ryegrass(IRG), Oats, Rye and Barley as the forage crops, Rush, the sludges produced from milling and slaughterhouse wastewater treatment plant(SMWTP, SSWTP). In the condition of thermophilic anaerobic digestion, the ultimate methane yield and anaerobic biodegradability of forage crops ranged from 0.367 to $0.452LCH_4$/gVS of methane yield with AB having the range of about 77.0 to 87.3%. On the other hand, that of other substrate showed low figures compared with the forage crops because of low VS content and C/N ratio. Therefore, the forage crops could be used as a good substrate to produce much more the methane in anaerobic digestion.

• 한국초지조사료학회지
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• 제33권4호
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• pp.263-268
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• 2013

본 연구는 조사료 종류와 수확시기에 따른 linoleic acid 함량 변화를 조사하기 위해 수행되었다. 우리나라에서 재배되는 주요 목초 및 사료작물에 대하여 3번의 수확시기로 구분하여 분석을 하였으며 전체 19종의 목초 및 사료작물이 조사대상 이었다. 대상작물은 우리나라에서 많이 재배되는 8종의 화본과 목초(Perennial ryegrass, Reed canarygrass, Tall fescue, Timothy, Bromegrass, Kentucky bluegrass, Orchardgrass and Wheat grass), 6종의 두과목초(White clover, Red clover, Sweet clover, Crimson clover, Alfalfa and Hairy vetch), 그리고 5종의 월동 사료작물(Italian ryegrass, Barley, Rye, Oat and Rape)에 대하여 3번의 수확시기를 두었다(5월 8일, 5월 19일 및 5월 28일). 화본과 목초 중에서는 Reed canarygrass와 timothy가 가장 높은 linoleic acid 함량을 나타내었고 남방형 목초인 bromegrass가 가장 낮았다. 모든 초종은 5월 19일 조사 시 가장 높은 농도를 나타내었고 5월 28일 조사 시 가장 낮았다. 두과목초는 화본과 목초보다 linoleic acid 함량이 높게 나타났으며 5월 19일 수확 시 가장 높은 농도를 보였다. 사료작물 중에서는 유채가 가장 높은 농도를 보였으며 호밀은 높은 수준이었다. 조사된 전체 조사료에서 수확시기가 진행됨에 따라 linoleic acid 함량이 감소하는 것으로 나타났다. 이상의 연구를 종합하여 볼 때 육종, 품종의 선택 및 재배관리를 통하여 CLA 전구물질인 linoleic acid 함량을 변화시켜 반추가축 생산물의 조성을 변화시킬 수 있는 것으로 나타났다.

• 한국작물학회:학술대회논문집
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• 한국작물학회 2017년도 9th Asian Crop Science Association conference
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• pp.355-355
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• 2017

South Korea is largely dependent on imports of forage crops. In order to raise the self-sufficiency rate of forage crops, it is necessary to cultivate forage crops in 135,100 ha reclaimed land of South Korea. This study was conducted to investigate the growth of halophytes and forage crops in order to search for stable plants on reclaimed land. The plants were cultured in Hoagland solution and grown at 0%, 0.5%, 1.0% and 2.0% of salt concentrations. Plants with good growth at 0.5% of salt concentration were halophytes such as Suaeda asparagoides and Salsola komarovii. Salicornia herbacea and Suaeda maritima showed good growth at 2.0% salinity, and Suaeda maritima showed stable growth at all of salt concentrations. In conclusion, Suaeda asparagoides showed the best growth at 0.5% of salt concentration and was considered the most biomass at reclaimed land in Korea with less than 0.5% of salt concentration.

• Asian-Australasian Journal of Animal Sciences
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• 제13권8호
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• pp.1109-1112
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• 2000

A field experiment was carried out to determine the effects of mechanical and chemical conditioning at mowing on field drying rate and quality of grass hay in 1996. Mower conditioner and/or chemical drying agent $(K_2CO_3)$ were used at different harvest stages (late boot, heading and bloom stages) for hastening hay-making. After field drying, square bales were made by hay baler, and the visual estimation and nutritive value of hay were evaluated after storing two months. In mower conditioning, the duration of field drying was shortened by 0.5 to 1 day compared with drying agent, and by 1 to 2 days compared with control. The drying matter loss of hay was reduced by late harvest and mechanical conditioning. The visual score (leafiness, green color, odor and softness), and acid detergent fiber (ADF), neutral detergent fiber (NDF), in vitro dry matter digestibllity (IVDMD), and relative feed value (RFV) of hay were improved with mechanical conditioning, but chemical alone had little effect on quality. The quality of hay harvested at bloom stage was much lower than that of hay harvested at late boot and heading stage. In conclusion, mower conditioning can enhance the field drying rate of grass hay, however the drying efficiency of chemical drying agent is very low. Also the effects of chemical/mechanical combined conditioning are very similar compared with mechanical conditioning alone. Harvesting at late boot to heading stage is recommended for the production of high quality hay.