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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
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Journal of The Korean Society of Grassland and Forage Science
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Journal DOI :
The Korean Society of Grassland and Forage Science
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Volume & Issues
Volume 31, Issue 4 - Dec 2011
Volume 31, Issue 3 - Sep 2011
Volume 31, Issue 2 - Jun 2011
Volume 31, Issue 1 - Mar 2011
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Identification of Heat Stress-related Proteins and Low Molecular Weight HSP Expressed in Stem Tissues of Rice Plants by Proteomic Analysis
Lee, Dong-Gi ; Kim, Kyung-Hee ; Kim, Yong-Gu ; Lee, Ki-Won ; Lee, Sang-Hoon ; Lee, Byung-Hyun ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 99~106
DOI : 10.5333/KGFS.2011.31.2.99
In order to investigate rice stem proteome in response to heat stress, rice plants were subjected to heat treatment at 42
and total soluble proteins were extracted from stem tissues, and were fractionated with 15% PEG (poly ethylene glycol) and separated by two-dimensional polyacrylamide gel electrophoresis (2-DE). After staining of 2-DE gels, 46 of differentially expressed proteins were extracted, digested by trypsin, and subjected to matrix assisted laser desorption/ionization-time of flight mass spectrometry (MALDI-TOF MS) analysis. Proteins were identified through database search by using peptide mass fingerprints. Among them, 10 proteins were successfully identified. Seven proteins were up- and 3 proteins were down-regulated, respectively. These proteins are involved in energy and metabolism, redox homeostasis, and mitochondrial small heat shock proteins. The identification of some novel proteins in the heat stress response provides new insights that can lead to a better understanding of the molecular basis of heat-sensitivity in plants, and also useful to molecular breeding of thermotolerant forage crops.
Change in Dry Matter Yields and Feed Values of Italian Ryegrass, Hwasan 101, at Different Growth Stages
Choi, Gi-Jun ; Lim, Young-Chul ; Ji, Hee-Chung ; Lee, Sang-Hoon ; Lee, Ki-Won ; Kim, Dong-Kwan ; Seo, Sung ; Kim, Ki-Yong ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 107~112
DOI : 10.5333/KGFS.2011.31.2.107
This experiment was carried out to provide some information on the change of dry matter productivity and feed value (forage quality) according to growth stages of late-maturing variety, Hwasan 101, Italian ryegrass (Lolium multiflorum Lam.) in Grassland and Forages Division, National Institute of Animal Science, RDA, Suwon from 2000 to 2002. In Suwon, booting, first heading, full heading and flowering stages of cv. Hwasan 101 were May 8, 18, 28 and June 3, respectively. Dry matter (DM) and total digestible nutrients (TDN) yields of Hwasan 101 were tendency to be increased by the progress of growth. DM yield in first heading stage increased 50% more than DM 4,818 kg/ha of booting stage, and also DM yield in full heading stage was increased by 26% of DM 7,244 kg/ha of first heading. Crude protein content was decreased gradually by the progress of growth, which were 18.32, 15.12, 12.58 and 12.36% in booting, first heading, full heading and flowing stage, respectively. Acid detergent fiber and neutral detergent fiber contents was increased and in vitro dry matter digestibility decreased gradually with progress of growth, but there was no difference between full heading and flowering stages. Considering DM yield and feed value of Italian ryegrass, the suitable cutting times seems between full heading and flowering stage.
Selection of Pasture Species at Paddy Field in Southern Region of Korea
Ji, Hee-Chung ; Kwon, Oh-Doo ; Kim, Won-Hoo ; Lim, Young-Chul ; Cho, Jung-Ho ; Lee, Ki-Won ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 113~118
DOI : 10.5333/KGFS.2011.31.2.113
This experiment was carried out to select the adaptability, forage production and quality of pasture species at paddy field from 2007 to 2009 at Jeonnam province. Among pasture species, Italian ryegrass was somewhat good for waterlogging, production, and disease and insect resistance. Fresh and dry matter yields of Italian ryegrass was the highest as 67,368 kg and 17,677 kg per ha among six species. The dry yield of Tall fescue mixture (Orchardgrass, Tall fescue, Perennial ryegrass, Kentuck bluegrass, White clover) and Tall fescue were also high as 15,589 kg and 14,693 kg per ha, respectively. Crude protein of Tall fescue and Tall fescue mixture were high as 10.4% and 13.5%, respectively. The result of this study showed that Italian ryegrass, Tall fescue mixture and Tall fescue had good growth characteristics and forage productivity at paddy field in southern region of Korea.
Effect of Different Drained Conditions on Growth, Forage Production and Quality of Sorghum, Sorghum × Sudangrass and Sudangrass Hybrids at Paddy Field
Ji, Hee-Chung ; Cho, Jung-Ho ; Ju, Jung-Il ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 119~126
DOI : 10.5333/KGFS.2011.31.2.119
This experiment was carried out to know adaptability and forage production and quality of sorghum, sorghum
sudangrass and sudangrass hybrids depend on drained condition at paddy field from 2007 to 2008 at Chungnam province. Growth, forage production and quality of sorghum, sorghum
sudangrass and sudangrass hybrids showed more well drained condition than poorly drained condition at paddy field. Among growth characteristics, 'SS405' hybrids were somewhat strong for waterlogging, then and good at stem diameter, disease resistance. The dry yield of 'SS405' hybrid at poorly drained paddy field was the highest as 12,938 kg per ha. Fresh yield of poorly drained paddy field was 52.7% compared to that of well drained paddy field. The dry matter yield of poorly drained paddy field was the lower as 66.4% than that of well drained condition. ADF (acid detergent fiber), NDF (neutral detergent fiber), CP (crude protein) and IVDMD (in vitro dry matter digestibility) in poorly drained paddy field were 90.3%, 100.6%, 85.7% and 89.6% level compared to well drained paddy field.
Evaluation of Agronomic Characteristics, Forage Production and Quality of Corn hybrids for Silage at Paddy Field in the Middle Region of Korea
Ji, Hee-Chung ; Kim, Won-Ho ; Lee, Sang-Hoon ; Cho, Jung-Ho ; Kwon, Oh-Doo ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 127~134
DOI : 10.5333/KGFS.2011.31.2.127
This experiment was carried out to know the adaptability and forage production and quality of corn hybrid for silage at paddy field of Chungnam region from 2008 to 2009. Among agronomic characteristics, 'Kangdaok' and 'Kwangpyongok' hybrid were somewhat strong for waterlogging and good stay green, lodging, disease and insect resistance. The dry matter yield of 'Kangdaok' and 'Kwangpyongok' hybrid were the highest among korean corn hybrids. Among introduced hybrid, 'P32T83' hybrid was strong for lodging and insect resistance, and had lower ear height and high Brix (
, %). The dry matter yield of 'P32T83' and 'P32P75' hybrid were 20,150 kg/ha and 20,500 kg/ha, respectively. The 'P32P75' hybrid was high as 73% in vitro dry matter digestibility (IVDMD) and good stay green. The result of this study indicated that 'Kangdaok', 'Kwangpyongok', 'P32T83' and 'P32P75' hybrid could be recommended as having good characters according to production, waterlogging tolerance, stay green, disease and insect resistance at paddy field in the middle region of Korea.
Comparison of Growth Characteristics and Forage Productivity Between Italian Ryegrass and Oats Sown in Early Spring
Choi, Gi-Jun ; Lim, Young-Chul ; Ji, Hee-Chung ; Lee, Sang-Hoon ; Lee, Ki-Won ; Kim, Dong-Kwan ; Seo, Sung ; Kim, Won-Ho ; Kim, Ki-Yong ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 135~142
DOI : 10.5333/KGFS.2011.31.2.135
This experiment was carried out to compare the growth characteristics and forage productivity between Italian ryegrass (Lolium multiflorum Lam.) and Oats (Avena sativa L.) sown in early spring on trial field of Grassland and Forages Division, National Institute of Animal Science, RDA, Cheonan and Jeollanam-do Agricultural Research and Extension Services, Naju in 2007 and 2008. Varieties used were Swan and Foothill in early- and late-maturing Oats, and Kospeed and Hwasan 101 in early- and late-maturing Italian ryegrass, respectively. In early-maturing variety, heading date of Swan was 14 May that was earlier one day than that of Kospeed. Plant length of Swan was 92cm that was longer 4cm than that of Kospeed. Average dry matter (DM) yield of 3 trial regions was not significantly different between Kospeed (6,809 kg/ha) and Swan (6,756 kg/ha) but DM yield of Italian ryegrass Hwasan 101 was less 35% than that of Swan. Average total digestible nutrient (TDN) yield of 3 trial regions was not significantly different between Kospeed (4,240 kg/ha) and Swan (4,162 kg/ha). In paddy cultivation of Naju, TDN yield of Kospeed was 4,154 kg/ha that was more 45% than that of Swan. Forage feed value was similar Kospeed to Swan in early maturing variety. Considering TDN yield and feed value of forage, early-maturing variety of Italian ryegrass was effective for spring-sown cultivation and suitable for forage production on paddy in southland of Korea.
Effect of Harvest Stage of Sorghum × Sorghum Hybrid (SSH) on the Quality of Round Baled SSH Silage
Choi, Ki-Choon ; Jung, Min-Woong ; Kim, Won-Ho ; Kim, Cheon-Man ; Yoon, Sei-Hyung ; Choi, Eun-Min ; Kim, Jong-Geun ; Lee, Sang-Moon ; Choi, Jong-Man ; Kim, Hyuck-Gi ; Lim, Young-Chul ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 143~150
DOI : 10.5333/KGFS.2011.31.2.143
This study was performed to investigate the effects of harvest stage of sorghum
sorghum hybrid (SSH) on nutritive values and quality of round baled SSH silage manufactured with SSH grown in paddy land of Department of Animal Resources Development, National Institute of Animal Science, RDA. SSH "SS405" was harvested at two different growth stages (heading and ripen stage) and ensiled at each harvest stages. Crude protein content of round baled SSH silage increased with delayed harvest maturity, but contents of ADF (acid detergent fiber), NDF (neutral detergent fiber), TDN (total digestible nutrient) and in vitro dry matter digestibility (IVDMD) was not changed. The pH in round baled SSH silage ranged from 3.8 to 4.4 at two different harvest stages, and pH in heading stage was higher than that of ripen stage. The content of lactic acid of round baled SSH silage increased with delayed harvest maturity (P<0.05), but the content of acetic acid decreased (P<0.05). The contents of lactic acid and acetic acid in ripen stage were not influenced by manufacture method of silage. The content of acetic acid in round baled SSH silage of heading stage increased as compared to that of trench SSH silage (P<0.05). Therefore, this study suggest that round baled SSH silage manufactured in both heading and ripen stage can improve the silage fermentation.
Studies on Utilization Survey and Forage Quality of Phragmites communis and Miscanthus sinensis as Native Grasses in Paju and Ansan District, 2010
Seo, Sung ; Kim, Won-Ho ; Jung, Min-Woong ; Park, Hyung-Soo ; Shim, Jae-Jin ; Park, Jin-Gil ; Sung, Ha-Guyn ; Kim, Jong-Duk ; Lee, Joung-Kyong ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 151~158
DOI : 10.5333/KGFS.2011.31.2.151
This study was carried out in 2010 to investigate the utilization and nutritive value of native grasses, such as Phragmites communis and Miscanthus sinensis which might reduce the cost of feeding domestic cattle. The regions within the Civilian Control Line in Paju and Sihwa region in Ansan were surveyed. In Paju, the yearly silage production was 900 MT harvested from 90 ha (10 MT/ha). About 30~50% of these were sold out at the marketing price of 52,000~55,000 Won per roll (130~137.5 Won/kg). Regrown Miscanthus sinensis of 70 cm in length contained 9.6% of crude protein (CP), 82.4 of relative feed value (RFV), and 67.7% of in vitro dry matter digestibility (IVDMD). Regrown Phragmites communis of 70 cm in length contained 13.8% of CP, 84.3 of RFV, and 67.9% of IVDMD. As harvesting was delayed, the quality was decreased dramatically. In Ansan region, Phragmites communis plantation covers 100 ha. The silage production was 550 MT from the area of 50 ha (11 MT/ha) in 2009. And the marketing price was 50,000 Won per roll. But in 2010 only a small amount of grasses could have been baled due to frequent and much rainfall from spring to summer season. However, the good forage quality was observed from regrown Phragmites communis of 80 cm in length, 12.9% CP, 99.8 RFV and 66.6% IVDMD, while that of late matured grasses was very low, 2.2% CP, 52.9 RFV and 36.4% IVDMD, greatly lower than forage quality of rice straw. The quality of grasses at bloom stage of 150 cm in length was similar to that of rice straw, showing 4.5% CP, 59.9 RFV and 42.2% IVDMD. In conclusion, the overall quality of most native grasses in this survey were very poor. Therefore, we recommend that Phragmites communis and Miscanthus sinensis should be harvested during June or July to obtain better forage quality which is richer in forage values than rice straw. Production of high quality forage crops was also desirable for self sufficiency of forage.
Effect of Application of Swine Slurry on Productivity of Sorghum × Sorghum Hybrid and Soil Environment in Reclaimed Land
Choi, Ki-Choon ; Jung, Min-Woong ; Cho, Nam-Chul ; Park, Hyung-Soo ; Yoon, Sei-Hyung ; Kim, Jong-Geun ; Song, Chae-Eun ; Choi, Eun-Min ; Kim, Cheon-Man ; Lim, Young-Chul ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 159~166
DOI : 10.5333/KGFS.2011.31.2.159
This experiment was carried out to investigate the effect of application of swine slurry (SS) and slurry composting-biofilteration liquid fertilizer (SCB) on productivity of sorghum
sorghum hybrid (SSH) and soil environment in reclaimed land of Sukmoon in Korea. Dry matter (DM) yields of SSH in the treatments of SS and chemical fertilizer (CF) were higher than those of in SCB treatment in reclaimed land, but DM yields in SS and CF did not show a significant difference as compared to SCB. Nutritive values of SSH were not different among CF, SS and SCB. In soil samples collected at the end of the experiment, the concentration of organic matter was significantly increased by SS and SCB as compare to that at the beginning of the experiment (P<0.05), whereas the concentration of total nitrogen was not affected by SS and SCB. To investigate the moisture content of soil, the soils were collected from three layers; surface (0~5 cm), intermediate (10~15 cm), and deep (20~25 cm) layer. The moisture contents of soils increased according to the soil depth and the soil moisture was immediately affected by the amount of rainfall. Therefore, we suggest that the cultivation of SSH using SS in reclaimed land is possible and that additional nitrogen fertilizer was surely applied in case of application of SCB to cultivate SSH.
Effect of Increased Slope on Corn Productivity and Nitrogen Losses in Runoff Water
Jung, Min-Woong ; Yook, Wan-Bang ; Choi, Ki-Choon ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 167~176
DOI : 10.5333/KGFS.2011.31.2.167
Effects of Dietary Herbaceous Peat on In Vitro Fermentation and Milk Production in Dairy Cows
Kim, Hyeon-Shup ; Park, Joong-Kook ; Kim, Hong-Yun ; Kim, Sang-Bum ; Yang, Seung-Hak ; Kim, Chang-Hyun ; Ahn, Jong-Ho ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 177~190
DOI : 10.5333/KGFS.2011.31.2.177
This study was conducted to determine effects of dietary herbaceous peat on in vitro fermentation and milk production in dairy cows. Ruminal pH, gas production, VFA (volatile fatty acid), Ammonia-N, and rumen degradability were examined by the addition of three times over 0, 1, and 5% herbaceous peat with substrate of timothy hay, and the change of rumen fermentation characteristics were evaluated. In 0, 3, 12 and 24 hours cultivation, all treatments did not show a significant difference but the control at 6 hours appeared significantly lower pH compared to 1 and 5% treatments (p<0.05). The gas production of the treatments significantly increased until 12 hours of cultivation compared to control (p<0.05), the rumen ammonia concentration showed a tendency to increase until 24 hours in all treatment groups, and there was no significant difference between treatments. About the rumen degradability, 5% treatment showed higher rumen degradability in all hours than control and 1% treatment (p<0.05). Meanwhile, for in vivo trial, 16 heads of Holstein lactation dairy cows were selected for experiment for four weeks in order to research the change of milk yield, milk compositions and change of somatic cell counts of lactation dairy cows by herbaceous peat feeding. The milk yield of vitamin C and herbaceous peat treatments (T3) was 25.0 kg but the control was 23.2 kg, herbaceous peat treatment (T1) was 23.1 kg, and vitamin C treatment (T2) was 23.4 kg, so there was linear increase effect of milk yield by T3. The partial significance of the milk (fat, milk protein, lactose, MUN and SNF) and change of somatic cell count before and after experiment by the control and treatments about change of milk and somatic cell counts (p<0.05) were recognized. About change of milk in the first half (1~2 weeks) and latter half (3~4 weeks) during four weeks of experiments period, the herbaceous peat supplement treatments showed a tendency of significant decrease of quality of milk protein and SNF. The control and treatments did not show significant change of blood nutrients (total protein, cholesterol, NEFA, BUN), liver function component (AST, GGT) and minerals (Ca, P, Mg) before and after experiment. In summary, it is judged that herbaceous peat feeding for lactation dairy cows would be recommendable based on the results of milk, somatic cell count physiologically.
Effects of Feeding Whole Crop Rice Silage Harvested at Different Mature Stages on Rumen Fermentation and Blood Metabolites in Hanwoo Steers
Choi, Chang-Weon ; Oh, Young-Kyoon ;
Journal of The Korean Society of Grassland and Forage Science, volume 31, issue 2, 2011, Pages 191~200
DOI : 10.5333/KGFS.2011.31.2.191
Four ruminally cannulated Hanwoo steers (BW 600
48.4 kg) fed whole crop rice silage (WRS) as forage were used to investigate the effects of its dietary on rumen fermentation and blood metabolites at different harvesting time such as milk, dough, yellow ripe and mature stages of WRS, respectively. Mean ruminal pH sampled at 0, 1, 2, 4, 6 and 8 h after the morning feeding was not significantly (p>0.05) different between the WRS by the harvesting time. In diurnal pattern in ruminal pH, the lowest pH for the mature stage treatment (Mature) appeared at 6 h after the feeding while it appeared at 2-4 h for the other treatments. This may indicate that retention time in the rumen of Hanwoo fed WRS harvested at the Mature increased. Although feeding WRS harvested at different stages did not significantly (p>0.05) affect ruminal ammonia N concentration, the ammonia N for WRS harvested at the milk stage (Milk) tended (p=0.11) to decrease compared with that for the yellow stage treatment (Yellow). In the blood metabolites analysis, BUN concentration for Yellow numerically decreased compared with that for Milk. This, taking lower concentration of ruminal ammonia N for Milk than the other treatments into account, clearly indicates that the BUN concentrations may not increase in proportion to ruminal ammonia N concentration according to ammonia N concentration entering into the lower gastric tracts. Lower (p=0.03) concentration of blood albumin for the dough stage treatment than that for Mature may indicate high protein synthesis in Hanwoo fed WRS at the dough stage, but further studies in terms of mechanism of nutrients distribution should be required. Present results indicate that different harvesting time did not affect rumen fermentation and blood metabolites in Hanwoo. Thus, based on the results of the present and the previous studies, utilizing WRS harvested at yellow stage could be recommendable for Hanwoo steers.