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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
Journal Basic Information
Journal DOI :
The Korean Society of Grassland and Forage Science
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Volume & Issues
Volume 35, Issue 4 - Dec 2015
Volume 35, Issue 3 - Oct 2015
Volume 35, Issue 2 - Jun 2015
Volume 35, Issue 1 - Mar 2015
Selecting the target year
Effect of Addition of Lactic Acid Bacteria on Fermentation Quality of Rye Silage
Choi, Ki Choon ; Ilavenil, Soundarrajan ; Arasu, Mariadhas Valan ; Park, Hyung-Su ; Kim, Won-Ho ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 277~282
DOI : 10.5333/KGFS.2015.35.4.277
This study was conducted to investigate the effect of novel Lactobacillus plantarum KCC-10 and KCC-19 on the quality and fermentation characterization of rye silages. The study was conducted at the National Institute of Animal Science, Cheonan province in Korea and consisted of three treatments: control without lactic acid bacteria, treatment with L. plantarum KCC-10 and treatment with L. plantarum KCC-19. The amounts of acid detergent fiber and neutral detergent fiber as well as the in vitro dry matter digestibility in KCC-10 and KCC-19 were similar to the control. The pH of rye silage in L. plantarum KCC-10 and KCC-19 treatments decreased compared to the control (p<0.05). The amount of lactic acid in L. plantarum KCC-10 and KCC-19 treatments increased (p<0.05), but the amounts of acetic acid and butyric acid in KCC-10 and KCC-19 treatments decreased (p<0.05). In addition, the number of lactic acid bacteria in L. plantarum KCC-10 and KCC-19 treatments increased compared to the control (p<0.05). Therefore, we suggest that rye silage was improved by the addition of L. plantarum KCC-10 and KCC-19.
Effect of Harvest Maturity, Wilting and Inoculant on the DM Losses and Morphological Changes of Round Baled Rye Silage
Kim, Jong Geun ; Park, Hyung Soo ; Lee, Sang Hoon ; Kim, Meing Joong ; Kim, Jong Kwan ; Lim, Young Chul ; Chung, Eui Soo ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 283~289
DOI : 10.5333/KGFS.2015.35.4.283
Three experiments were carried out to determine the effect of harvest maturity and management practices on the dry matter losses and morphological changes of round baled rye silage. Rye was harvested at three growing stages (boot, heading and flowering stage) in three different conditions i) with wilting (unwilted, short wilting and long wilting), ii) with inoculant treatment (untreated, inoculant A and inoculant B) and iii) with three different wrap colors (white, black and green). The morphological changes in round bale silage after 2 months was heavy in the early harvest and unwilted silage. However, harvesting after the heading stage did not change the shape, significantly. Inoculant treatment reduced the morphological changes and dry matter (DM) losses of round baled rye silage. DM loss was decreased with a delayed harvesting date and was significantly reduced by the inoculant. Dramatic changes in the shape were observed in all treatment at boot stage. Inoculant treatment resulted in more severe changes in the boot stage compared to untreated silage. Black color wrapping had the greatest impact among the wrap colors and there were no significant difference in the wrap colors. Harvest maturity and wilting periods was highly correlated (p<0.01) with morphological change. Result of these studies indicated that dry matter content is the most important factor that affects the morphological change in round bale silage.
Effects of Mixed Application of Chemical Fertilizer with Liquid Swine Manure on Agronomic Characteristics, Yield and Feed Value of Sorghum × Sorghum Hybrid for Silage in Paddy Field Cultivation
Hwan, Hwang Joo ; Lee, Sang Moo ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 290~296
DOI : 10.5333/KGFS.2015.35.4.290
This study was conducted to investigate the influence of the mixed application of chemical fertilizer (CF) with liquid swine manure (LSM) on the agronomic characteristics, dry matter yield, minerals, and free sugar in cultivating Sorghum
Sorghum Hybrid (SSH) on paddy soil. The field experiment was designed in a randomized block design with three replications and consisted of CF 100% (C), CF 70% + LSM 30% (T1), CF 50% + LSM 50% (T2), CF 30% + LSM 70% (T3), and LSM 100% treatment (T4). The application of LSM was based only on the nitrogen (150 kg/ha). Plant length, leaf length, leaf width and stem diameter were significantly the lower in T4 (p<0.05). Stem hardness increased significantly (p<0.05) as the LSM application rate decreased. Fresh yield was the highest in T2, whereas the lowest in T3 (p<0.05). However, dry matter yields and TDN yield did not show significant difference among treatments. Crude protein was the highest in T1 (p<0.05). Crude fat content did not significant differences between the T1, T2, T3 and T4, but C showed a significantly different (p<0.05). NDF and crude fiber were the highest in T3 and C, respectively (p<0.05). However, ADF did not show significant difference among treatments. Total mineral contents were higher in the order of T1> T2> T4> T3> C (p<0.05). Free sugar contents were significantly higher at T1 and C as compared to other treatments. The analysis of all the above results suggests that the application of liquid swine manure is very effective, considering the yield performance and the content of mineral and free sugar. In addition, liquid swine manure may be possible to grow SSH without chemical fertilizer.
Evaluation of Agronomic Characteristics and Forage Production of Domestic and Foreign Italian Ryegrass Cultivar in Korea
Ko, Ki Hwan ; Kim, Jong Kwan ; Kim, Jong Duk ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 297~302
DOI : 10.5333/KGFS.2015.35.4.297
This experiment was conducted to evaluate the agronomic characteristics and forage production of Italian ryegrass cultivars at three locations (Gurae, Sungju and Cheonan) from 2013 to 2014. The experiment employed a randomized complete block design with three replications. The seven cultivars used in this experiment were 'Korwinearly', 'Florida80', 'YounbongI', 'YounbongII', 'YounbongIII', 'KeimyungI' and 'KeimyungII' varieties. Italian ryegrass varieties were seeded on October 4 at Gurae, October 8 at Seongju and October 3 at Cheonan in 2013. The Italian ryegrass varieties were harvested on April 26 at Gurae and Seongju, and on April 24 at Cheonan in 2014. Although the seven cultivars had resistance to foliar diseases and insects and high winter survival, they has little lodging resistance. The heading dates for 'Younbong I', 'Younbong II' and 'Keimyung I' were earlier than for other varieties at the three locations. Dry matter (DM) content and plant height in the early maturing cultivars were higher than in other cultivars at the three locations. The fresh and DM yields of the early maturing cultivars were also higher than others at the three locations. The results of this experiment indicate that the heading date for early maturing cultivars is earlier, and the plant height is higher than for other cultivars. Early maturing cultivars had higher DM content as well as fresh and DM yields of Italian ryegrass. Therefore, early maturing cultivars should be recommended as high-yield forage in double-cropping systems because of their superior production of forage and early heading date.
Estimating Farmers' Willingness to Cultivate Genetically Modified Rice and Grass for Feed in Korea
Kim, Seung Gyu ; Ryu, Jin ; Jung, Jae-Won ; Sung, Myung-Hwan ; Kim, Tae-Kyun ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 303~308
DOI : 10.5333/KGFS.2015.35.4.303
Cultivating genetically modified (GM) crops is believed to be a practical solution to meet the increasing food demand, but GM crops are not legal in Korea mainly due to food safety issues. Even though the general public might not be ready to consume GM food, GM crops are imported and consumed as food and feed. To analyze farmers's willingness to grow GM crops for feed, a survey was conducted among crop farmers and 640 valid responses were collected by mail. In the questionnaire, the farmers were asked to select either 'yes' or 'no' if they were willing or not willing to cultivate GM rice and GM grass, respectively, under the given hypothetical income increase rate (i.e., 10%, 20%, 30%, 40%, 50%, 60%, or 70%). Logit regression was used to estimate the two dichotomous choices by explanatory variables including hypothetical income increase rate. The results show that farmers are willing to cultivate GM rice and grass when their income is expected to increase by 47% and 43%, respectively.
Crop Analysis through Growth Survey after Wintering of Winter Annual Forages Grown from 2014 to 2015
Kim, Young-Jin ; Kim, Won-Ho ; Lee, Sang-Hoon ; Park, Hyung-Soo ; Kim, Ki-Yong ; Ji, Hee-Chung ; Choi, Ki-Choon ; Lee, Sang-Hak ; Jung, Jeong-Sung ; Kim, Ji-Hea ; Hwang, Tae-Young ; Lee, Ki-Won ; Kim, Hyeon-Shup ; Choi, Gi-Jun ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 309~315
DOI : 10.5333/KGFS.2015.35.4.309
In order to identify the causes of various problems related to forage crop growth, such as winter survival, coldness, rainfall, drought etc., and to provide basic data for the stable production and supply of forage year round, we performed a growth survey after the wintering of winter forage crops grown from mid-Sep. 2014 to late-Feb. 2015. The growth of winter forage crops after wintering in the country was generally bad. As shown in the regional distribution in the country, regions with 80% or higher winter survival rates comprised 66%, regions with 79 to 50% winter survival comprised 24.9% and regions with less than 50% winter survival comprised 9.1%. In conclusion, the average winter survival rate was 79% in the country. Winter survival rate and coverage rate after the wintering of winter forage crops under installed drain channels in paddy fields were good at 83% and 80%, respectively. However, the rates without installed drain channels were bad at 67% and 66%, respectively. It was predicted that the crop production of winter forage crops was reduced by 10-15% in Gangwon, Chungbuk, Chungnam, Gyeongnam and Jeonnam regions, reduced by 30% in Gyeonggi, Gyeongbuk and Jeonbuk regions and reduced overall by approximately 19% nationwide.
Effect of Physical Pre-treatment of Mature Seed in Callus Formation and Plant Regeneration of Zoysiagrass
Ahn, Na-Young ; Kim, Yong-Goo ; Rahman, Md. Atikur ; Bae, Eun Ji ; Choi, Su Min ; Lee, Kwang Soo ; Lee, Byung-Hyun ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 316~320
DOI : 10.5333/KGFS.2015.35.4.316
In order to improve the transformation efficiency of zoysiagrass by increasing the frequency of callus formation from mature seeds and plant regeneration, the effect of pre-treatment with sea sand was examined. Mature zoysiagrass seeds were given 10 min of swelling time before sea sand treatment using a sea sand and seed ratio of 1 : 1 and a vortex shaking speed of 6 (1,000 rpm) for 10 min. The seeds showed increased callus formation that was more than 2 times the rate in the control. In addition, plant regeneration efficiency was also increased when embryogenic callus induced from sea sand-treated mature seeds was cultured in regeneration medium. These results will be very helpful for improving the genetic transformation frequency of zoysiagrass, a recalcitrant monocot grass.
Effect of Microbial Flora and Inoculation of Probiotics on Fermenting Characteristics of Naked Barley Grain (Hordeum Vulgare L.)
Ahn, Hye-Jin ; Kim, Ki Hyun ; Jo, Eun Seok ; Kim, Jo Eun ; Kim, Kwang-Sik ; Kim, Young Hwa ; Song, Tae Hwa ; Park, Jong Ho ; Kang, Hwan Ku ; Jang, Sun Sik ; Oh, Young Kyoon ; Cheon, Dong Won ; Seol, Kuk-Hwan ;
Journal of The Korean Society of Grassland and Forage Science, volume 35, issue 4, 2015, Pages 321~326
DOI : 10.5333/KGFS.2015.35.4.321
This study was performed to analyze the resident microbial flora and the effects of probiotic inoculation on the fermentation characteristics of whole grain naked barley (Hordeum Vulgare L.) with the goal of evaluating the possibility of utilization as fermented feedstuff. Naked barley grains were harvested 35 days after heading, and the microbial flora was analyzed using MALDI-TOF mass spectrometer. After inoculation of commercial microbes to the naked barley grain (BT), the pH and number of bacteria, such as aerobic bacteria, lactic acid bacteria, yeast and E. coli, were measured and compared with the non-inoculated control (BC). A total of 122 colonies was isolated from the naked barley grain and the most popular bacteria species was Staphylococcus xylosus (n = 30, 24.59%). The pH value decreased more rapidly in BT than in BC, and was significantly lower after 7 days of fermentation at
, respectively. The number of aerobic bacteria, lactic acid bacteria and yeast showed an increasing trend within the first 7 days of fermentation, however, their numbers decreased at 28 and 42 days of fermentation. The population of lactic acid bacteria in BT was higher than in BC, but there was no significant different at 7 days of fermentation, with respective levels of
(p>0.05). The initial number of E. coli was very high in the naked barley grain but subsequently decreased significantly. After 7 days of fermentation, E. coli was not detected in either BT or BC samples. From these results, it appears that the fermentation of naked barley grain proceeded adequately after 7 days, and that fermentation contributes to the safety of naked barley grain during storage.