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REFERENCE LINKING PLATFORM OF KOREA S&T JOURNALS
> Journal Vol & Issue
Journal of The Korean Society of Grassland and Forage Science
Journal Basic Information
Journal DOI :
The Korean Society of Grassland and Forage Science
Editor in Chief :
Volume & Issues
Volume 34, Issue 4 - Dec 2014
Volume 34, Issue 3 - Sep 2014
Volume 34, Issue 2 - Jun 2014
Volume 34, Issue 1 - Mar 2014
Selecting the target year
Effect of Different Seeding Dates on Agronomic Characteristics and Productivity of Sudangrass hybrid and Oat in Cropping After Corn for Silage in Kyeongbuk
Shin, Chung Nam ; Ko, Ki Hwan ; Kim, Jong Duk ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 81~86
DOI : 10.5333/KGFS.2014.34.2.81
This study was conducted to evaluate the effect of different seeding dates on agronomic characteristics, forage quality, dry matter (DM) and dry matter digestible (DDM) yields of sudangrass hybrid (Sorghum bicolor(L.) Moench) and oat (Avena sativaL.) at Seongju in Kyeongbuk from 2012 to 2013. The experiment was arranged in randomized complete block design with three replications. Sudangrass was seeded five times seeding dates of 10 days interval ranging from
September in 2012 and 2013. Oat was seeded three times seeding dates of 10 days interval ranging from
September in 2013. Sudangrass was harvested on
October, 2012 and
November, 2013. Plant length and DM content decreased with delaying seeing date. The DM and DDM yields of sudangrass were higher (P<0.05) in first seeding date than all other seeding dates and decreased with delaying seeding dates (P<0.05). The DM and DDM yields of oat were higher (P<0.05) in first and second seeding dates than third seeding date. The results of this study indicated that early seeding of sudangrass would be a recommended than late seeding after
of August, and late seeding of oat after
August would be recommened for DM and DDM yields in the Southern Korea.
Forage Productivity and Feed Value in Triple Cropping Systems with Winter Forage Crops-Silage Corn-Summer Oat Cultivation at Paddy Field in Southern Region of Korea
Song, Tae-Hwa ; Park, Tae-Il ; Kang, Hyeon-Jong ; Park, Hyong-Ho ; Han, Ouk-Kyu ; Cho, Sang-Kyun ; Oh, Young-Jin ; Jang, Yun-Woo ; Roh, Jae-Hwan ; Park, Kwang-Geun ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 87~93
DOI : 10.5333/KGFS.2014.34.2.87
Multiple cropping system is an important agricultural system in Korea, which is significant to increase forage yield and promote agricultural economic development. This experiment was carried out to develop triple cropping systems (winter cereals crop for forage - silage corn - summer oats) for maximum year-around forage production at paddy field in southern region. We also to select a winter forage crop to determine corn planting time, and to examine the forage productivity and feed value of summer cultivated oat, which was planted after corn cultivation. When winter cereal crops for forages are harvested in accordance with and corn planter, the fresh yield and dry matter yield of rye were 32.0 ton/ha and 5.8 ton/ha, respectively, showing higher yielding compared to other winter crops. Corn silage as summer crop was showed the fresh yield and dry matter yield of 72.1 ton/ha and 20.2 ton/ha, respectively. In the feed value, crude protein and TDN contents were 7.4% and 69.3%, respectively. They was showed higher productivity and feed value. The heading date of High-speed oat was October 10, and its fresh yield and dry matter yield were 37.6 ton/ha and 8.0 ton/ha, respectively. As a feed value, crude protein and TDN content was 11.4% and 59.1%, respectively. Therefore, triple cropping systems for the production of forage all throughout the year are possible with the introduction of summer oats in the southern region, and rye could be the most suitable winter forage crops for triple cropping systems.
Effects of Bacterial Inoculants and Organic Acids on Silage Quality : Meta-analysis
Cho, Sangbuem ; Kwon, Chan Ho ; Kim, Eun Joong ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 94~102
DOI : 10.5333/KGFS.2014.34.2.94
This study was conducted to estimate and compare the effects of bacterial inoculants and organic acids on silage quality. Silage pH, lactate, acetate, lactate:acetate ratio, propionate, butyrate, water-soluble carbohydrate, crude protein, ammonia-N, neutral detergent fiber and acid detergent fiber (ADF) were used as parameters for quality analysis and a meta-analysis technique was employed to determine the effect size. As a data pool for analysis, we examined 14 research papers. Bacterial inoculants were found to elevate pH, lactate, acetate, lactate:acetate ratio, propionate and ADF contents compared to the controls (p<0.01). In contrast bacterial inoclulants decreased butyrate, water-soluble carbohydrate, crude protein and ammonia-N contents (p<0.01). In the organic acid treatments, all parameters except ADF showed higher contents than the control (p<0.01). In the comparison of effect sizes between the two treatments, significant differences were detected in butyrate, water-soluble carbohydrate, crude protein and ammonia-N (p<0.05). It may be concluded that bacterial inoculants could improve silage quality in terms of the aforementioned four parameters compared with organic acid treatments.
Effects of Seeding Time on Growth Characteristics and Seed Production of Tall Fescue
Lee, Ki-Won ; Choi, Gi Jun ; Kim, Ki-Yong ; Ji, Hee Jung ; Park, Hyung Soo ; Lee, Dong-Gi ; Lee, Sang-Hoon ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 103~107
DOI : 10.5333/KGFS.2014.34.2.103
Tall fescue (Festuca arundinacea Schreb.) is one of cool-season adapted perennial grass species and has been cultivated worldwide as a important forage and lawn grass. In this study, we evaluated the seed production of new tall fescue cultivar, 'Purum', which was cultivated in Korea. Agronomic aspects of tall fescue were determined using seed production and forage nutritive value of straw at the National Institute of Animal Science, RDA from 2012 to 2013. The heading date according to the seeding time displayed 2~3 days differences. The harvested seed yields were the largest (1,711 kg/ha) when seeding date at September
, whereas it decreased when planted ten days earlier or later than at that time. The thousand-grain weight of gathering seeds was 2 g, and the germination rate was 80 to 83% showing no significant differences among the different seeding times. The yield of fresh weight and dry matter were the largest (63,556 kg/ha and 16,926 kg/ha, respectively) when planted at September
. The dry matter yield was gradually decreased with delaying seeding time as 10 days period. However, nutritive values of straw did not showed significant differences.
Effects of Sodium Chloride Treatment on Seed Germination and Seedling Growth of Italian Ryegrass Cultivars
Lee, Sang-Hoon ; Choi, Gi Jun ; Lee, Dong-Gi ; Mun, Jin-Yong ; Kim, Ki-Yong ; Ji, Hee Jung ; Park, Hyung Soo ; Lee, Ki-Won ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 108~113
DOI : 10.5333/KGFS.2014.34.2.108
This study was conducted to evaluate the performance of Italian ryegrass cultivars for salt tolerance under in vitro condition. Italian ryegrass cultivars such as Greenfarm, Florida80, Kowinearly, and Hwasan101 were tested for their tolerance to various sodium chloride levels (0, 50, 150, 250, and 350 mM). The seed germination, growth, and activities of antioxidant enzymes were investigated under salt treatment. Physiological traits such as seed germination percentage, germination period, shoot and root length, and dry weight were suppressed under entire salt stress conditions. The results indicated that the highest germination percentage and shoot and root length were recorded at normal conditions. Increased sodium chloride levels caused a significant reduction in the seed germination and growth rate. Among the four tested cultivars, Italian ryegrass 'Hwasan101' could be considered as salt tolerant owing to its higher germination percentage, better seedling growth and antioxidant activities under salinity stress, whereas Greenfarm cultivar was more sensitive. The selection of Italian ryegrass cultivars for greater tolerance to saline environment would allow greater productivity from large saline lands.
Effects of Salt and Drought Stresses on Seed Germination and Gene Expression Pattern in Tall Fescue
Lee, Sang-Hoon ; Lee, Ki-Won ; Choi, Gi Jun ; Kim, Ki-Yong ; Ji, Hee Jung ; Hwang, Tae Young ; Lee, Dong-Gi ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 114~119
DOI : 10.5333/KGFS.2014.34.2.114
Salinity and drought stresses are probably the most significant abiotic factor limiting plant's growth, also negatively affect seed germination and early seedling development. To study on effect of NaCl and PEG stress on seed germination and gene expression pattern of tall fescue, the levels of NaCl and PEG-induced water stresses were determined in first experiment. Different concentration of NaCl (0 to 350 mM) and PEG (0 to 30%) were used for seed treatment. Seed Germination percentage reduced with increasing osmotic potential of growth medium either due to NaCl or PEG. Seeds were not germinate at 350 mM NaCl or 30% PEG treatment. On the basis of the results, Kentucky31(E-) had more resistant than Fawn in both stress conditions. Furthermore, we have used an annealing control primer-based differential display reverse transcription-polymerase chain reaction method to identify salt- and drought stress-induced differentially expressed genes (DEGs) in tall fescue leaves. Using 120 annealing control primers, a total of 4 genes were identified and sequenced. The possible roles of the identified DEGs are discussed in the context of their putative role during salinity and drought stresses.
Comparison of Volatile Organic Compound and Volatile Fatty Acid Concentration in Feces and Urine of Finishing Pigs
Cho, Sung Back ; Hwang, Ok Hwa ; Yang, Seung Hak ; Kwag, Jeong Hoon ; Choi, Dong Yun ; Yang, Sung Bong ; Kim, Doo Hwan ; Park, Sung Kwon ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 120~124
DOI : 10.5333/KGFS.2014.34.2.120
This study was performed to compare the level of odorous compounds in feces and urine of finishing pigs. Feces and urine from 16 finishing pigs were separately collected for 28-d. Concentrations of volatile organic compound (VOC; phenols and indoles) and volatile fatty acid (VFA; SCFA and BCFA) were measured in feces and urine. Amount of phenols and p-cresol was higher (P<0.05) in urine than in feces. Urinal levels of phenols and p-cresol were 257.8 ppm and 250.9 ppm, and those of fecal phenols and p-cresol were 0.50 ppm and 0.05 ppm, respectively. There was no difference in concentration of indoles from feces (1.0 ppm) and urine (1.8 ppm). Short chain fatty acid (SCFA) level in urine was higher (P<0.05) than in feces showing 4,547 ppm and 863 ppm, respectively. Proportion of acetic acid to total SCFA was higher in urine (94%) than in feces (66%). However, level of branched fatty acid (BCFA) was greater in feces (118 ppm) compare to that of urine (87 ppm). Odorous compounds analyzed in the current study, phenols and SCFA, were contained more in urine than in feces. Greater amount of VFA is typically found in feces than in urine since it is generated in the large intestine. However, urine contained more VFA than feces in the current study. Therefore, it will be necessary to exploit odor reducing techniques especially for pig urine as grassland fertilizer.
Effect of Season on Volatile Organic Compounds and Volatile Fatty Acids Concentration in finishing Pig Slurry to Grassland
Cho, Sung Back ; Yang, Seung Hak ; Lee, Kyung Tai ; Park, Sung Kwon ; Han, Duck Woo ; Choi, Dong Yun ; Hwang, Ok Hwa ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 125~128
DOI : 10.5333/KGFS.2014.34.2.125
The objective of this study is to investigate the changes in levels of odorous compounds in pig slurry during different seasons. Slurry from pens of finishing pigs was sampled every 4-wk and concentration of odorous compounds was analyzed. There was no difference in the range of phenols level (123 to 156 ppm) during spring (April to May), summer (July to August) and fall (October to November). The concentration of indoles was higher (P<0.05) during spring (14.3 ppm) than summer and fall (5.4~7.6 ppm). Level of BCFA ranging from 727 to 1,194 ppm was not different at any season. Among SCFA, there was no difference in propionic acid during any season but levels of acetic acid and butyric acid were highest (P<0.05) during spring season. Concentration of odorous compounds in pig slurry was highest during spring season. Interestingly, it tended to be lower during summer season compare to fall. This result might be due to relatively lower ventilation rate in order to maintain a constant temperature during spring season. Further study will be necessary to determine the relationship between the concentration of odorous compounds and ventilation system.
Effect of Byproducts Supplementation by Partically Replacing Soybean Meal to a Total Mixed Ration on Rumen Fermentation Characteristics In Vitro
Bae, Gui Seck ; Kim, Eun Joong ; Song, Tae Ho ; Song, Tae Hwa ; Park, Tae Il ; Choi, Nag Jin ; Kwon, Chan Ho ; Chang, Moon Baek ;
Journal of The Korean Society of Grassland and Forage Science, volume 34, issue 2, 2014, Pages 129~140
DOI : 10.5333/KGFS.2014.34.2.129
This study was performed to evaluate the effects of replacing basic total mixed ration (TMR) with fermented soybean curd, Artemisia princeps Pampanini cv. Sajabal, and spent coffee grounds by-product on rumen microbial fermentation in vitro. Soybean in the basic TMR diet (control) was replaced by the following 9 treatments (3 replicates): maximum amounts of soybean curd (SC); fermented SC (FSC); 3, 5, and 10% FSC + fermented A. princeps Pampanini cv. Sajabal (1:1, DM basis, FSCS); and 3, 5, 10% FSC + fermented coffee meal (1:1, DM basis, FSCC) of soybean. FSC, FSCS, and FSCC were fermented using Lactobacillus acidophilus ATCC 496, Lactobacillus fermentum ATCC 1493, Lactobacillus plantarum KCTC 1048, and Lactobacillus casei IFO 3533. Replacing dairy cow TMR with FSC treatment led to a pH value of 6 after 8 h of incubation-the lowest value measured (p<0.05), and FSCS and FSCC treatments were higher than SC and FSC treatment after 6 h (p<0.05). Gas production was higher in response to 3% FSC and FSCC treatments than the control after 4-10 h. Dry matter digestibility was increased 0-12 h after FSC treatment (p<0.05) and was the highest after 24 h of 10% FSCS treatment.
concentration was the lowest after 24 h of FSC treatment (p<0.05). Microbial protein content increased in response to treatments that had been fermented by the Lactobacillus spp. compared to control and SC treatments (p<0.05). The total concentration of volatile fatty acids (VFAs) was increased after 6-12 h of FSC treatment (p<0.05), while the highest acetate proportion was observed 24 h after 5% and 10% FSCS treatments. The FSC of propionate proportion was increased for 0-10 h compared with among treatments (p<0.05). The highest acetate in the propionate ration was observed after 12 h of SC treatment and the lowest with FSCS 3% treatment after 24 h. Methane (
) emulsion was lower with A. princeps Pampanini cv. Sajabal and spent coffee grounds treatments than with the control, SC, and FSC treatments. These experiments were designed to replace the by-products of dairy cow TMR with SC, FSC, FSCS, and FSCC to improve TMR quality. Condensed tannins contained in FSCS and FSCC treatments, which reduced
emulsion in vitro, decreased rumen microbial fermentation during the early incubation time. Therefore, future experiments are required to develop a rumen continuous culture system and an in vivo test to optimize the percentages of FSC, FSCS, and FSCC in the TMR diet of the dairy cows.