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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 32, Issue 4 - Dec 2012
Volume 32, Issue 3 - Sep 2012
Volume 32, Issue 2 - Jun 2012
Volume 32, Issue 1 - Mar 2012
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Utilization Survey and Forage Quality of Phragmites communis and Native Grasses in Haenam, Pyeongchang and Wonju Regions, 2010
Seo, Sung ; Han, Dae-Duk ; Jang, Sun-Sik ; Kim, Won-Ho ; Jung, Min-Woong ; Choi, Jin-Hyuck ; Kim, Jin-Sook ; Kim, Ha-Young ; Lee, Joung-Kyong ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 1~8
DOI : 10.5333/KGFS.2012.32.1.1
This study was carried out in 2010 to investigate the utilization and forage quality of native grasses, such as
which might reduce the cost of feeding domestic cattle. The regions surveyed were the Haenam ranch in Haenam, Pyeongchang, Wonju, and Yeonggwang. In Haenam, yearly silage production harvested from 300 ha was 2,000 MT (7 MT/ha). All of those round bale silages were self-consumed in that region, and marketing price was 50,000~55,000 won per roll (110 won/kg).
of 150 cm in length contained 8.4% crude protein (CP) with relative feed value (RFV) 71.9 and 60.1% in vitro dry matter digestibility (IVDMD), which was somewhat more favorable than forage quality of rice straw. The silage quality of
varied greatly by the time of harvest (CP 4.7~6.4%, RFV 62.2~78.9, and IVDMD 41.9~53.9%), even with the same district and of the same original forage materials. Generally, the quality of
silage of was poorer than that of sorghum
sudangrass hybrid. In Pyeongchang, forage quality of
was decreased from 13.9% to 7.6% in CP, 90.7 to 76.1 in RFV, and 72.9% to 54.7% in IVDMD, as plant was getting mature, from 79 cm to 117 cm, 121 cm or to 142 cm in length. In Wonju, the quality values of
of 130 cm in length were 8.5% CP, 82.3 RFV and 70.2% IVDMD, while those of matured grasses of 220 cm in length were lower (10.2% CP, 65.1 RFV and 48.9% IVDMD), but this was a little more favorable than quality of rice straw. In Yeonggwang, feeding
was tried in a Hanwoo feed, but stopped due to low profitability. In conclusion, the overall quality of most native grasses including
in this survey was poor. Therefore, we recommend that
and native grasses should be harvested on June or July to obtain richer forage quality in forage values than rice straw.
Agronomic Characteristics and Yield of Silage Corn Hybrids 'Cap 444NG'
Ji, Hee-Chung ; Kim, Meing-Jooung ; Lee, Sang-Hyun ; Choi, Gi-Jun ; Kim, Ki-Yong ; Park, Hyung-Su ; Kim, Won-Ho ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 9~14
DOI : 10.5333/KGFS.2012.32.1.9
This experiment was carried out to know adaptability, forage production and quality of corn hybrid for silage at three regions during 2007 to 2008. Among agronomic characteristics, 'CAP444NG' hybrid was somewhat strong for good stay green and higher stem height as 294cm. The fresh and dry matter yield of 'CAP444NG' hybrid were the highest 61,111 kg/ha and 20,635 kg/ha, respectively. The crude protein of 'CAP444NG' hybrid was somewhat higher than other hybrids as 7.9%. The result of this study indicated that 'CAP444NG' hybrid could be recommended as having good characters according to forage production and stay green and for silage in Korea.
A Comparative Study on the Growth Characteristics and Nutritional Components of Corn Hybrids for Silage at Paddy Field Cultivation
Kim, Wan-Su ; Hwang, Joo-Hwan ; Lee, Jae-Hun ; Kim, Eun-Joong ; Jeon, Byong-Tae ; Moon, Sang-Ho ; Lee, Sang-Moo ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 15~28
DOI : 10.5333/KGFS.2012.32.1.15
This study was carried out to know adaptability and growth characteristics, yield, chemical compositions and nutrition yield of corn hybrids for silage at paddy field. The field experiments were conducted at Sangju province for one year (2009). The experimental design was arranged in a randomized block design with three replication. The treatments consisted of eleven corn hybrids. The planting date was on 1 May and harvested at 24 August. Stem diameter, stem hardness and number of ear were higher in P32P75 than other varieties. Ear height, dead leaf and green degree were highest in
7117, but number of root system and Brix (
) were higher in P3394 than other varieties. Crude protein and crude fat (EE) were highest in P32K61 and P31P41, respectively (P<0.01). NDF and ADF were highest in KPO and KIO, respectively, but no significant differences were found among the varieties. Total mineral contents were the highest in Kwangpyongok (9,775 mg/kg), and P3394 (6,651 mg/kg) was the lowest as compared to other varieties (P<0.01). Crude protein yield, crude fat yield and mineral yield were highest in P3156, P31P41 and KPO, respectively (P<0.01). Total composition amino acid and total fatty acid were the highest in P32K61 and KIO, respectively (P<0.01). Yields of crude protein, fatty acid, composition amino acid and TDN were the highest in P3156 (P<0.01). But yields of crude protein and mineral were the highest in P31P41 and KPO, respectively (P<0.01). Total digestible nutrient (TDN) was higher in order of P3156 >
7117 > P31N27 > KPO > P32K61 > P32T83 > P32P75 > P31P41 > P3394 > P32W86 > KIO. Based on the above results, corn hybrid varieties could be recommended in P3156, NC+7117 and P31N27 for growth characteristics, quantitative production and nutrition yield.
A Comparative Studies on the growth Characteristics and Feed Components of Sorghum × Sudangrass hybrids at Paddy Field Cultivation
Jeon, Byong-Tae ; Moon, Sang-Ho ; Lee, Sang-Moo ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 29~38
DOI : 10.5333/KGFS.2012.32.1.29
This study was carried out to compare the agronomic characteristics, forage yield, and feed value of nine sorghum
sudangrass hybrids at paddy field cultivation. The nine recommended sorghum
sudangrass hybrids used in this study were P877F, Cow pow, Turbo gold, Maxi graze, Jumbo, G7, Sweet home, Honey chew BMR and Green star. Plant height, leaf number, stem diameter, and stem hardness were higher in Jumbo than other varieties (P<0.01). Sugar content (brix) was higher in order of P877F > Sweet home > maxi graze > Green star > Cow pow > G7 (P<0.01). Fresh (86,199kg/ha) and dry matter yield (16,206 kg/ha) of Jumbo were higher than other varieties (P<0.01). Crude protein was the highest in Maxi graze (6.5%), but crude fat was the highest in Honey chew BMR as 2.1% (P<0.01). NDF and ADF of Jumbo and G7 were higher than other varieties (P<0.01). TDN was higher in order of Maxi graze > Sweet home > P877F > Honey chew BMR > Green star, but no significant differences were found among the varieties. Minerals were the highest in Cow pow (15,020.5 mg/kg), and Sweet home (6,222.6 mg/kg) was the lowest as compared to other varieties (P<0.01). Total amino acids were higher in order of Maxi graze > Sweet home > Turbo gold > Honey chew BMR > Jumbo (P<0.01). Crude protein yield and crude fat yield were the highest in Turbo gold (814.6 kg/ha) and Honey chew BMR (309.8kg/ha), respectively (P<0.01). Mineral yield was the highest in Cow pow as 207.6 kg/ha (P<0.01). Amino acid yield (592.2 kg/ha) and TDN yield (10,194 kg/ha) were the highest in Sweet home. Based on the above results, sorghum
sudangrass hybrid varieties should be selected on the basis of the purpose of use. Because, each varieties showed various growth characteristics and nutrition yield (protein, fat, mineral, amino acid, TDN).
Influences of Seleniferous Whole Crop Barley Supplement on Growth Performance and Blood Characteristics in Growing Pigs
Lee, Sung-Hoon ; Jo, Ik-Hwan ; Kim, Guk-Won ; HwangBo, Soon ; Han, Ouk-Kyu ; Song, Tae-Hwa ; Park, Tae-Il ; Choi, In-Bae ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 39~48
DOI : 10.5333/KGFS.2012.32.1.39
This study was conducted to investigate effects of different levels of seleniferous whole crop barley (WCB) supplementation on performance, and blood characteristics as physiological responses in growing pigs. A total of 20 cross-bred pigs ((Landrace
Duroc) were divided into 4 treatments of 5 pigs each and experimental period lasted for 6 weeks. They were fed diets containing 0.1 (non-seleniferous WCB as controls), 0.2, 0.4, and 0.6 mg/kg levels of selenium (Se) by supplementing seleniferous WCB, and non-seleniferous or seleniferous WCB was formulated to 5% level in total ration. The diets were isonitrogenous (18% crude protein) and isocaloric (3,500 kcal/kg digestible energy) across treatments. Increasing levels of seleniferous WCB supplements did not affect feed intake and BW gain, and blood total protein concentration was (p<0.05) significantly higher for 0.2 mg/kg Se treatments than for controls. On d 14, blood albumin concentration was higher (p<0.05) for seleniferous WCB supplemented groups than for control group. Contrarily, blood glucose concentration was tended to be higher for controls than for seleniferous WCB groups. Blood total lipid concentration was significantly (p<0.05) lowered with increasing levels of seleniferous WCB. Serum glutamic-oxaloacetic transaminase and glutamic-pyruvic transaminase did not have any difference among treatments. It was tended that blood total cholesterol and triglyceride were lowered with increasing levels of seleniferous WCB. Blood Se concentration was significantly (p<0.05) increased with increasing levels of seleniferous WCB. The results indicate that Se present in seleniferous WCB had favorable effects on blood characteristics and blood Se increased by supplementing seleniferous WCB implies not only a good intestinal absorption of Se present in WCB but also the possibility of Se transfer into tissues.
Effects of Fermented feed with Agricultural by-products on the Growth Performance and Nutrients Utilization in Fattening Korean Black Goats
Choi, Sun-Ho ; HwangBo, Soon ; Kim, Sang-Woo ; Cho, Young-Moo ; Yoo, Yeoung-Hee ; Kim, Tae-Il ; Kim, Maeong-Joung ; Lee, Sang-Min ; Choi, Chang-Weon ; Seo, Byeong-Bu ; Jo, Ik-Hwan ; Hong, Seonng-Gu ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 49~58
DOI : 10.5333/KGFS.2012.32.1.49
This study was conducted to investigate the feeding fermented agro-industrial by-products on estimating the productivity and nutrient utilization of fattening black goats. Four experimental groups were set up with each of 6 animals for a 30 days feeding trial on growth performance and 12 black goats on nutrient digestibility were allocated to 4 groups of 3 animals each by latin-square design, control (offered concentrate and rice straw) and 3 treatment groups (offered fermentation feed and rice straw). Average daily gain (ADG) showed a significant high in control group, T3 was lower than other groups (p<0.05). DM and OM intake (kg/head) were 718.8, 680.9 g and 634.2~699.2 g, 602.8~660.4 g for control and treatment groups, respectively. As increasing of rice bran content was decreased feed intake. Digestibility of DM and OM for control group were significantly higher than treatment groups (p<0.05), and T3 treatment group with 30% rice bran was the lowest among treatment groups. Nitrogen retention was significantly higher in control and T1 groups. Thus, these results showed that productivity and nutrient utilization were similar between fermentation feeds with agricultural by-products and commercial feeds. However, this study was suggested that it must contain less than 5.0% crude fat because of feed efficient was decreased by increasing of rice bran content.
Effect of Protein Fractionation and Buffer Solubility of Forage Sources on In Vitro Fermentation Characteristics, Degradability and Gas Production
Jin, Guang Lin ; Shinekhuu, Judder ; Qin, Wei-Ze ; Kim, Jong-Kyu ; Ju, Jong-Kwan ; Suh, Seong-Won ; Song, Man-Kang ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 59~74
DOI : 10.5333/KGFS.2012.32.1.59
Buffer solubility and protein fractionation were evaluated from the hays (timothy, alfalfa and klein) and straws (tall fescue and rice), and
trial was conducted to examine the effect of buffer extraction on fermentation characteristics, degradability and gas (
) production. Buffer soluble protein (SP) content and A fraction in total protein were highest in alfalfa hay as 61% and 41.77%, respectively while lowest in rice straw (42.8% and 19.78%, respectively). No difference was observed in B1 fraction among forages but B2 fraction was slightly increased in klein hay (12.34%) and tall fescue straw (10.05%) compared with other forages (6.34~8.85%). B3 fraction of tall fescue was highest as 38.49% without difference among other forages while C fraction was highest in rice straw. pH in incubation solution was higher in all forages after extraction than before extraction at 3h (P<0.01) and 6h (P<0.05), and pH from hays of timothy and alfalfa was higher than the other forages at 6h (P<0.05) and 12h (P<0.001). Regardless of extraction, ammonia-N concentration from alfalfa hay was increased at all incubation times and extraction effect was appeared only at 3h incubation time (P<0.01). Total VFA concentration from alfalfa hay was highest up to 24h incubation while those from tall fescue straw and rice straw were lowest. Buffer extraction decreased (P<0.01~P<0.001) the total VFA concentration. Acetic acid proportion was increased (P<0.001) before extraction of forages but no difference was found between forages. Propionic acid(
) proportion was also increased(P<0.001) before extraction in all forages than in straws at 3h, 24h and 48h incubations, and
from hays were mostly higher (P<0.05) than from straws. Butyric acid proportion, however, was not affected by extraction at most incubation times. Parameter 'a' regarding to the dry matter (DM) degradation was increase (P<0.001) in all forages before extraction, and was decreased (P<0.05) in tall fescue straw and rice straw compared with hays. Parameter 'b' was also increased (P<0.001) before extraction but no difference was found between forages. Effective degradability of DM (EDDM) was higher (P<0.001) before extraction in most forages except for rice straw. Buffer extraction decreased (P<0.05) all parameters (a, b, and c) regrading to the crude protein (CP) degradation but no difference was found between forages. Effective degradation of CP (EDCP) was lower (P<0.05) in straws than in hays. Parameters 'a' and 'b' regarding to the NDF degradation (P<0.01) and effective degradability of NDF (EDNDF, P<0.001) were also higher in forages before extraction than after extraction but no difference was found between forages. Buffer extraction reduced (P<0.05~P<0.001)
production from all the forages uo to 24h incubation and its production was greater (P<0.05~P<0.01) from hays than straws. Methane (
) production was also greater (P<0.01~P<0.001) in all forages at all incubation times, and its production was greater (P<0.05) from hays than from straws at most incubation times. Based on the results of the current study, it can be concluded that buffer solubility and CP fractionation might be closely related with
VFA concentration, degradability and gas (
) production. Thus, measurement of buffer solubility and protein fractionation of forages might be useful to improve TMR availability in the ruminants.
Cost Analysis of Wrap Silage Production in the Paddy Field for Forage Crop Cropping System
Ha, Yu-Shin ; Park, Kyung-Kyoo ;
Journal of The Korean Society of Grassland and Forage Science, volume 32, issue 1, 2012, Pages 75~84
DOI : 10.5333/KGFS.2012.32.1.75
Mechanized operation model and mechanical cultivation technology for winter barley, rye, Italian ryegrass and sudan grass wrap silage production system at the paddy field for cropping system was developed. Also, a series of experiment were performed and lots of data were collected and analyzed to develope mechanical technology, coverage area, and optimum size of the farm (break-even point) for wrap silage production system. The coverage area for winter barley or rye wrap-silage production system is determined around 61.9, 73.4, 77.5, 88.2 ha in the case of drill seeding and different ripening species by tractor power 50, 75, 100, 130 ps, respectably. The break-even point of the farming size is analyzed as 20 ha and its production cost is estimated around 367, 383, 430, 443 won/TDN-kg in the case of winter barley wrap-silage by tractor power 50, 75, 100, 130 ps, respectably. The break-even point of the farming size is analyzed as coverage area and its production cost is estimated around 237, 215 won/TDN-kg in the case of winter barley wrap silage and sudan grass by the tractor power 50, 100 ps, respectably.