간행물
한국초지조사료학회지 KCI 등재 Journal of The Korean Society of Grassland Science
- 발행기관 한국초지조사료학회
- 자료유형 학술지
- 간기 계간
- ISSN 2287-5824 (Print)2287-5832 (Online)
- 수록기간 1978 ~ 2024
- 주제분류 농수해양 > 축산학 농수해양 분류의 다른 간행물
- 십진분류KDC 527DDC 636
권호리스트/논문검색
Vol. 36 No. 1 (2016년 3월) 9건
1.
2016.03
구독 인증기관 무료, 개인회원 유료
The growth of Italian ryegrass (IRG) after wintering was very low in 2015 when IRG was broadcasted under growing rice in fall of 2014. To determine growth inhibitory factors of IRG, we examined the growth conditions of IRG in Nonsan region and meteorological conditions in Daejeon nearby Nonsan. Minimum temperature and maximum instantaneous wind speed on Feb. 8th and 9th of 2015 after wintering of IRG were 8.8℃, 10.7 m/s and 12.4℃, 9.6m/s, respectively. Air temperature was suddenly dropped due to strong wind with snow showers, which had unfavorable effect on root growth of IRG exposed at the soil surface. The minimum temperature and maximum instantaneous wind speed on Feb. 12th, 13th, and 14th of 2015 were 4.1℃, 11.6 m/s, － 5.6℃, 10.3 m/s, and －4.7℃, 7.5 m/s, respectively. The growth circumstance of IRG was not good because soil was dried due to drought continued from January. The minimum temperature and maximum instantaneous wind speed on Feb. 26th, 27th, and 28th of 2015 were 1.8℃, 13.7 m/s, －3.5℃, 10.6 m/s, and 4.1℃, 6.8 m/s, respectively. The number of wilting of IRG was more than 59% until Mar. 3rd of 2015. IRG faced irreparable environment (low minimum temperatures and extreme instantaneous wind speeds) for 9 days from Mar. 4th to Mar. 12th of 2015. The main reason for the decrease of IRG productivity was collection delay of rice straw after rice harvest because there was continuous rain between Oct. and Nov. of 2014. For this reason, weakly grown IRG under rice straw was withered after wintering. IRG was withered by frost heaving, drought, and instantaneous wind speed in the spring. Furthermore, the root of IRG was damaged while growing in excess moisture in the surface of paddy soil during the winter season due to rain.
4,000원
2.
2016.03
구독 인증기관 무료, 개인회원 유료
The objective of this study was to determine the effect of bacterial inoculation (Lactobacillus plantarum or combo inoculant mixed with Lactobacillus plantarum and Lactobacillus buchneri) and addition of fibrolytic enzyme on chemical compositions and fermentation characteristics of whole crop barley (WCB) and triticale (TRT) silage, their ruminal in vitro fermentation, and digestibility. In TRT silage, enzyme addition significantly (p<0.01) decreased NDF content compared to no enzyme addition treatment. Organic acids such as lactate and acetate contents in WCB and TRT silages were significantly (p<0.01) higher compared to those in the control. Particularly, lactate content was the highest in L. plantarum treatment. Fibrolytic enzyme treatment on both silages had relatively higher lactic acid bacteria content, while mold content was lower in both treatments compared to that in the control. In vitro dry matter digestibility was generally improved in WCB silages. It was higher (p<0.01) in TRT with mixed treatment of L. plantarum, L. buchneri, and enzyme compared to others. In vitro ruminal acetate production was relatively higher in treatments with both enzyme and inoculant additions compared to that in the control. Therefore, the quality of silage and rumen fermentation could be improved by inoculants (L. plantarum and L. buchneri) regardless whether whole crop barley (WCB) or triticale (TRT) silage was used. Although it was found that fibrolytic enzyme addition to both silages had various quality and rumen fermentation values, further study is needed
4,000원
3.
2016.03
구독 인증기관 무료, 개인회원 유료
‘Onnuri 2ho’ is a new orchardgrass (Dactylis glomerata L.) variety developed by the National Institute of Animal Science (NIAS) in 2014. Four superior clones were selected and polycrossed for seed production to develop this new variety of orchardgrass. The agronomic growth characteristics and forage productivity of ‘Onnuri 2ho’ were examined at Cheonan from 2010 to 2011. Regional adaptation trials were conducted in Cheonan, Hoengseong, Jinju and Jeju from 2012 to 2014.
‘Onnuri 2ho’ showed growth habit of medium type in fall and spring. It is long in length of flag leaf with medium upper internode. Plant height of ‘Onnuri 2ho’ was 4 cm more than that of control variety, ‘Amba’. Its heading date was 4 days later than compared to control variety, ‘Amba’. Characteristics such as waterlogging and disease resistance of ‘Onnuri 2ho’ were stronger or better than those of control variety, ‘Amba’, Especially, the dry matter yield of ‘Onnuri 2ho’ (15,814 kg/ha) was increased 34 % compared to that of control variety, Amba (11,778 kg/ha). Nutritive feed values of ‘Onnuri 2ho’ appeared to be similar to that of control variety ‘Amba’ except in Vitro dry matter digestibility (IVDMD).
3,000원
4.
2016.03
구독 인증기관 무료, 개인회원 유료
‘Lucky one’ is a new orchardgrass (Dactylis glomerata L.) variety developed by the National Institute of Animal Science (NIAS) in 2014. Four superior clones were selected and polycrossed for seed production to develope this new variety of orchardgrass. The agronomic growth characteristics and forage productivity of ‘Lucky one’ were examined at Cheonan from 2010 to 2011. Regional adaption trials were conducted in Cheonan, Hoengseong, Jinju, and Jeju from 2012 to 2014.
‘Lucky one’ showed growth habit of medium type in fall and spring. It has short flag leaf length with long upper internode. Plant height of ‘Lucky one’ was 3 cm more than that of control variety, ‘Amba’. Its heading date was 2 days later than that of control variety ‘Amba’. Characteristics such as waterlogging and disease resistance of ‘Lucky one’ were stronger or better than those of control variety, ‘Amba’, Especially, dry matter yield of ‘Lucky one’ (16,191 kg/ha) was increased 38% compared to that of control variety, ‘Amba’(11,778 kg/ha). Nutritive feed values of ‘Lucky one’ appeared to be similar to those of control variety ‘Amba’ except in Vitro dry matter digestibility (IVDMD) and crude protein content.
3,000원
5.
2016.03
구독 인증기관 무료, 개인회원 유료
The present study was carried out to explore the potential effects of novel lactic acid bacteria Pediococcus penticeous KCC-23 (KCC-23) and Lactobacillus plantarum KCC-24 (KCC-24) on rye haylage fermentation at National Institute of Animal Science, Cheonan province in Korea. The experiment contains three different groups such as control without lactic acid bacteria, rye haylage with KCC-23 and rye haylage KCC-24. After experimental periods, the content of crude protein, acid detergent fiber (ADF), neutral detergent fiber (NDF), the activity of total digestible nutrient (TDN) and In-vitro digestibility (IVD) was similar in control and LAB treated haylage (p<0.05). The pH was reduced in KCC-23 and KCC-24 treated rye haylage as compared to control (p<0.05). The lactic acid concentration in haylages was increased by L. plantarum KCC-23, and KCC-24 supplement. Whereas, the less amount of acetic acid and butyric acid was noted in KCC-23 and KCC-24 treated haylage as compared with control (p<0.05). The KCC-23 and KCC-24 were dominantly grown in experimental haylage as compared with control. It indicates, the addition of KCC-23, and KCC-24 enhances fermentation quality of haylages as compared control. The present study suggests that KCC-23 and KCC-24 are potent strains that were improving the fermentation process in rye haylage
4,000원
6.
2016.03
구독 인증기관 무료, 개인회원 유료
In order to provide basic data to predict changes of milk components in milk yield, this study was conducted to compare nutritive values of diets collected from organic dairy farms (ODF) and conventional dairy farms (CDF) of Chungnam and Jeonbuk in Korea. The contents of crude fat, crude fiver, neutral detergent fiber, and acid detergent fiber in diets of ODF were significantly (p<0.05) higher compared to those of CDF. The contents of crude protein and crude ash in ODF were also higher (p<0.05) than those of CDF. The contents of calcium, ferrum, and phosphorus in diets of ODF were similar to those of CDF. The contents of potassium, magnesium, and iodine in diets of ODF were higher (p<0.05) than those of CDF. The contents of total saturated and unsaturated fatty acids in diets of ODF were higher (p<0.05) compared to those of CDF. The contents of oleic acid, linoleic acid, and linolenic acid in diets of ODF were higher (p<0.05) compared to those of CDF. However, the contents of myristic acid, palmitic acid, and stearic acid in diets of ODF were lower (p<0.05) compared to those of CDF.
4,000원
7.
2016.03
구독 인증기관 무료, 개인회원 유료
The objective of this study was to determine the effect of moisture content on the physical and chemical characteristics of Italian ryegrass cube. Cube quality according to moisture contents (15, 20, 25, and 30%) was determined. Cubes made with 15 to 20% moisture showed a little cracks. But, the amount of powder generate from these cubes were lower by 10 to 16% compared to other cubes made with 25 to 30% moisture contents. The highest hardness at 159 kg/f was obtained when the cube was made with 15% moisture content and the lowest was 70 kg/f when the cube was made with 30% moisture content. The electrical loading and surface temperature were increased when moisture content was decreased. The chemical compositions of cube were differ from those of raw materials. Crude protein (CP) and ether extract (EE) contents were increased after cubing works. However, crude fiber (CF), acid detergent fiber (ADF), and neutral detergent fiber (NDF) contents were decreased after cubing. The crude ash content was not significantly (p > 0.05) different between raw material and cube. Higher moisture content resulted in higher crude protein content. However, crude fiber and crude ash content were not significantly (p > 0.05) different between each other. The contents of ADF and NDF were the lowest in cubes made with 30% moisture content. Our results suggest that the proper moisture content of Italian ryegrass cubing is recommended to be 15 to 20% and that cubing works should help increase forage quality.
4,000원
8.
2016.03
구독 인증기관 무료, 개인회원 유료
The objective of this study was to determine the effect of different pregnancy stages on the eating and ruminating behavior of Hanwoo heifers (Bos taurus coreanae). A total of twelve Hanwoo heifers were divided into four groups depending on pregnancy stage: C: before pregnancy, 9 months old, T1: 3 months pregnant, 16 months old, T2: 6 months pregnant, 19 months old, T3: 9 months pregnant, 22 months old (3 replicates per group). Concentrate of 1% of the body weight was fed to them. Roughage was provided at ad libitum to all treatments. Our results revealed that the intake of roughage was the highest in the T3 group (at 3.68 kg) and the lowest in the C group (at 1.02 kg, p<0.05). Total intake in the order from high to low was: T3 > T2 > T1 > C (p<0.05). The rate of dry matter intake compared to body weight (DMI/BW, %) from high to low order was: T3 > T2 > T1 > C (p<0.05). Eating time, ruminating time, and chewing time were the highest in T3 group (p<0.05). Resting time was the highest in C group (p<0.05). The number of bolus and the number of total chews were significantly higher in T3 compared to those in other groups. However, ruminating time per bolus was not significantly difference among groups. The number of chews per bolus from high to low order was: C > T1 > T3 > T2 (p<0.05). The number of bolus per minute was not significantly different among groups. The number of drinking and the number of defecating were significantly higher in C and T1, respectively (p<0.05). However, the number of urinating had no effect according to pregnancy stage. Eating rate and chewing efficiency were significantly higher (p<0.05) in accordance with pregnancy stage (T3 > T2 > T1 > C). Ruminating efficiency was significantly (p<0.05) higher T1 than that in other groups.
4,000원
9.
2016.03
구독 인증기관 무료, 개인회원 유료
This study was conducted to determine the effect of mathematical transformation on near infrared spectroscopy (NIRS) calibrations for the prediction of chemical composition and fermentation parameters in corn silage. Corn silage samples (n=407) were collected from cattle farms and feed companies in Korea between 2014 and 2015. Samples of silage were scanned at 1 nm intervals over the wavelength range of 680~2,500 nm. The optical data were recorded as log 1/Reflectance (log 1/R) and scanned in intact fresh condition. The spectral data were regressed against a range of chemical parameters using partial least squares (PLS) multivariate analysis in conjunction with several spectral math treatments to reduce the effect of extraneous noise. The optimum calibrations were selected based on the highest coefficients of determination in cross validation (R2 cv) and the lowest standard error of cross validation (SECV). Results of this study revealed that the NIRS method could be used to predict chemical constituents accurately (correlation coefficient of cross validation, R2 cv, ranging from 0.77 to 0.91). The best mathematical treatment for moisture and crude protein (CP) was first-order derivatives (1, 16, 16, and 1, 4, 4), whereas the best mathematical treatment for neutral detergent fiber (NDF) and acid detergent fiber (ADF) was 2, 16, 16. The calibration models for fermentation parameters had lower predictive accuracy than chemical constituents. However, pH and lactic acids were predicted with considerable accuracy (R2 cv 0.74 to 0.77). The best mathematical treatment for them was 1, 8, 8 and 2, 16, 16, respectively. Results of this experiment demonstrate that it is possible to use NIRS method to predict the chemical composition and fermentation quality of fresh corn silages as a routine analysis method for feeding value evaluation to give advice to farmers.
4,000원
