• Title, Summary, Keyword: Imported hay

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Effect of Maturity at Harvest on the Changes in Nutritive Value of Round Baled Rye Silage (수확시 숙기가 호밀 라운드베일 사일리지의 사료가치 변화에 미치는 영향)

  • Kim, J.G.;Seo, S.;Chung, E.S.;Kang, W.S.;Ham, J.S.;Kim, D.A.
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.20 no.4
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    • pp.309-316
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    • 2000
  • The objective of this experiment was to evaluate chemical composition, dry matter(DM) digestibility, DM intake, relative feed value(RFV) and hay grade of imported roughage which was collected by wholesale dealer at Chungnam province in 1999. Experimental roughages includes 8 kinds of imported hays(com stover bale, tall fescue straw, green cell, bermudagrass straw, reed camarygrass straw, alfalfa bale, sugarcane bale and oat hay) and mixture hay(contro1) which was harvested at Chungnam National University experimental field. Compared with mixture hay(contro1) except for alfalfa bale, crude protein of most imported roughage was low, but NDF, ADF, cellulose and lignin compound were high. Futhermore, DM digestibility, DM intake, RFV and hay grade of imported roughage except for alfalfa bale was significantly lower than those of mixture hay(control)(P<0.05). Therefore, it is necessary to evaluate the economic value in the aspect of quality for the imported roughages. (Key words : Imported roughage, RFV, Hay grade, Nutritive value)

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Studies on the Quality and Palatability of Imported Hay and Straw (수입건초의 품질 및 기호성에 관한 연구)

  • Han, Sang-Cheul;Lee, In-Duk;Lee, Hyung-Suk
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.29 no.1
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    • pp.73-82
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    • 2009
  • The experiment was carried out from January through December in 2008 at Chungnam National University and the Unbong Animal Genetic Resources Station, NIAS. The experimental animals were twelve dairy goats (female, $30{\pm}1.8kg$), twelve Korean native Boats(female, $24{\pm}2.4kg$) and five sika deer(female, $92{\pm}5.2kg$). A total of 11 different types of hay and straw were tested in this study: such straw imported from USA in 2006 as annual ryegrass, perennial ryegrass, tall fescue and Kentucky bluegrass, and such hay imported from USA in 2007 as alfatfa, bermudagrass, timothy, kleingrass, oat and orchardgrass, and such domestic hay as mixed hay There were significant differences in chemical composition and in vitro dry matter digestibility (IVDMD) among the various types of imported hay and straw (p<0.05). Besides alfalfa hay and orchardpass hay all of the imported hay contained lower crude protein (CP) and IVDMD but contained higher neutral detergent fiber(NDF) and acid detergent fiber (ADF) than the domestic hay. According to the kinds of the imported hay, relative feed value (RFV) made the difference and the hay grades were ranged from 4 to 5, based on the RFV. According to the kinds of the imported hay, there were markedly differences in dry matte. (DM) intake and palatability ranking among dairy goats, Korean native goats, and sika deer. DM intake and palatability ranking were high in common between orchardgrass hay and bermudagrass hay, but Kentucky bluegrass straw, tall fescue straw, perennial ryegrass straw and annual ryegrass straw were proved to be very low in DM intake and palatability ranking. In conclusion, the quality and palatability among the imported hay that was tested in the study were quite variable and lower than expected. It is required to establish a better feed evaluation system for the imported hay.

A Study on the Distribution of Feed Value and Quality Grade of Imported Hay (수입 건초의 사료가치와 품질등급 분포에 관한 연구)

  • Lee, Bae Hun;Kim, Ji Hye;Oh, Mirae;Lee, Ki Won;Choi, Ki Choon;Cheon, Dong Won;Park, Hyung Soo
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.40 no.1
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    • pp.1-6
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    • 2020
  • This study was conducted to evaluate feed value of imported hays and examine current situation of species and hay grade. To evaluate the quality of the imported hay, 133 pieces including 9 species of roughage types were collected at the national hay importers, the TMR companies and livestock farms from 2016 to 2018. The quality grades of imported hay were 3~4 and most imported hay were considered to had low. The ADF, Ash, TDN and DDM in feed composition of alfalfa by quality grades presented significant differences(p<0.05). The quality grade on alfalfa was not similar to the actual quality grades calculated through feed composition. The feed composition of grasses by quality degrees presented significant differences in all contents except DM and CP (p<0.05). As the distributed grasses of the unmarked quality grade was low quality and accounted for 49%, it is urgent to present quality standards based on feed composition. As these results, the grades of imported hays were lower than the marked quality grades. Therefore, the imported roughage's(hay) price that considered to only quality grades on the marked imported roughages(hay) package can cause a loss to the livestock farms as economic damage. An institutional arrangement should be established to review the quality grades of imported hay.

A Comparative Study of Nutritive Value of Imported Roughages (수입 조사료의 사료가치 비교 연구)

  • 이형석;이인덕
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.20 no.4
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    • pp.303-308
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    • 2000
  • The objective of this experiment was to evaluate chemical composition, dry matter(DM) digestibility, DM intake, relative feed value(RFV) and hay grade of imported roughage which was collected by wholesale dealer at Chungnam province in 1999. Experimental roughages includes 8 kinds of imported hays(com stover bale, tall fescue straw, green cell, bermudagrass straw, reed carnarygrass straw, alfalfa bale, sugarcane bale and oat hay) and mixture hay(control) which was harvested at Chungnam National University experimental field. Compared with mixture hay(control) except for alfalfa bale, crude protein of most imported roughage was low, but NDF, ADF, cellulose and lignin compound were high. Futhermore, DM digestibility, DM intake, RFV and hay grade of imported roughage except for alfalfa bale was significantly lower than those of mixture hay(control)(P<0.05). Therefore, it is necessary to evaluate the economic value in the aspect of quality for the imported roughages.

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Evaluation of the Potential for the Adulteration Screening of Imported Hay by Near Infrared Reflectance Spectroscopy (근적외선분광법을 이용한 수입건초의 이물질 혼입판정 가능성 평가)

  • Park, Hyung-Soo;Lee, Hyo-Won;Kim, Ji-Hye;Lee, Sang-Hoon;Kim, Jong-Duck
    • Journal of Animal Environmental Science
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    • v.20 no.4
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    • pp.183-188
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    • 2014
  • Near-infrared reflectance spectroscopy (NIRS) was used to study the potential of adulteration of imported forage. Hay samples were prepared two set ; calibration set and validation one. The former were mixed 12 sets from 100% to 50% with Yangcho (Chinese leymus, leymus chinensis Trin.) and the latter were adulterated with 6 set of 8% to 38% in 5% interval. Mixed materials with Yangcho were rice straw, reed and alfalfa. Stand error of prediction (SEP) in calibration equation for alfalfa, reed and rice straw were 0.97, 0.97 and 0.99 also 0.54, 0.86 and 1.26%. Multiple correlation coefficient ($R^2$) for alfalfa, reed and rice straw were 0.99, 0.97 and 0.99. SEP in the same samples were 1.88, 2.15 and 1.49, respectively.

Anatomical properties of several imported woods (수종(數種) 수입재(輸入材)의 해부학적(解剖學的) 성질(性質))

  • Lee, Phil Woo
    • Journal of Korean Society of Forest Science
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    • v.2 no.1
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    • pp.37-40
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    • 1962
  • 1) The greater parts of rail road cross tie wood in Korea have been supplied by the imported woods from foreign countries such as Formosa (Taiwan) and Japan. However on account of anatomical properties on these imported woods are not known when newly imported, identification and preservative treatment are apt to fail. Accordingly this expriment was accomplished by the need of application of anatomical properties for the preservative treatment and identification of several imported woods. 2) In this study macroscopical and microscopical properties were inspected and briefly described about four species (Cyclobalanopsis gilva Blume, Castanopsis longicaudata K. et H., Machilus longiflora Hay and Schima superba Gard et Champ) from Formosa and one (Fagus crenata, Blume) from Japan. With several native species these are important as the rail road tie wood in Korea. 3) According to the results measured values of the vessels and fibers of each tested species are as following table.

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A study on the food habits of Sika Deer (Saanen) fed with roughage sources (조사료원에 따른 꽃사슴(Servus nippon)의 채식습성에 관한 연구)

  • Gang, Byung-Ho;Lee, In-Duk;Lee, Soo-Kee;Lee, Hyung-Suk
    • Korean Journal of Agricultural Science
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    • v.38 no.3
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    • pp.437-444
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    • 2011
  • The object of this experiment was to investigate the food habits of sika deer fed with various roughage sources. The experimental trials were conducted at Unbong Animal Genetic Resources Station in 2008. The experimental roughages include five sources and 25 species in all; grasses and legumes: 5 species (mixed grasses, orchardgrass, tall fescue, alfalfa, white clover), native grasses and weeds: 5 species (mixed native grasses, Miscanthus sinensis Anderss, Arundinella hirta (Thunb.) Tanaka, barnyard grass, short awn, forage crops (hay, silages and straw): 5 species (barley + hairy vetch, Wheat + hairy vetch, rye silage, barley silage, baled rice straw), browse and fallen leaves: 5 species (mixed browse, oriental white oak, Quercus serrta Thunb., oriental cherry fallen leaves, Japanese chestnut fallen leaves), and imported hays and straws: 5 species (timothy hay, tall fescue straw, annual ryegrass straw, klinegrass hay, alfalfa hay). Five sika deer were used as experimental animals and the averaged body weight was 95+5.4kg. The chemical composition and dry matter digestibility of each roughage source and species were significantly different at the sampling area, plant species, growth stages and cutting period(p<0.05). The sika deer ate more roughages which had low fibrous contents, but high dry matter digestibility. Among all the 25 species of roughages, the favorite intake roughage sources ranking by sika deer was observed like this: browse and fallen leaves (32.2%), grass and legumes (27.0%), native grasses and weeds (22.0%), imported hays (12.9%) and forages crops (5.5%) respectively. Although, the sika deer ate more browse leaves, but ate more roughage which had low fibrous contents (NDF and ADF), but high drymatter digestibility. On the other hand, compared to each roughage source, total intake amount by sika deer was showed as browse and fallen leaves (32.2%). Based on the result, the food habit of sika deer seems to be closer to the typical browser.

Evaluation of Feed Values for Imported Hay Using Near Infrared Reflectance Spectroscopy (근적외선분광법을 이용한 수입 건초의 사료가치 평가)

  • Park, Hyung Soo;Kim, Ji Hye;Choi, Ki Choon;Oh, Mirae;Lee, Ki-Won;Lee, Bae Hun
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.39 no.4
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    • pp.258-263
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    • 2019
  • Near infrared reflectance spectroscopy (NIRS) has become increasingly used as a rapid and accurate method of evaluating some chemical compositions in forages. The objective of this study was to evaluate the potential of NIRS, applied to imported forage, to estimate the moisture and chemical parameters for imported hays. A population of 392 imported hay representing a wide range in chemical parameters was used in this study. Samples of forage were scanned at 1 nm intervals over the wavelength range 680-2500nm and the optical data was recorded as log 1/Reflectance(log 1/R), which 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 spectral math treatments to reduced the effect of extraneous noise. The optimum calibrations were selected based on the highest coefficients of determination in cross validation(R2) and the lowest standard error of cross-validation(SECV). The results of this study showed that NIRS predicted the chemical parameters with very high degree of accuracy. The R2 and SECV for imported hay calibration were 0.92(SECV 0.61%) for moisture, 0.98(SECV 0.65%) for acid detergent fiber, 0.97(SECV 0.40%) for neutral detergent fiber, 0.99(SECV 0.06%) for crude protein and 0.97(SECV 3.04%) for relative feed value on a dry matter(%), respectively. Results of this experiment showed the possibility of NIRS method to predict the moisture and chemical composition of imported hay in Korea for routine analysis method to evaluate the feed value.

Effect of mixed hay supplementation during fattening on carcass traits and meat quality of Hanwoo steers

  • Utama, Dicky Tri;Choi, Ji Hye;Lee, Chang Woo;Park, Yeon Soo;Lee, Sung Ki
    • Journal of Animal Science and Technology
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    • v.59 no.3
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    • pp.6.1-6.6
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    • 2017
  • Background: This study was aim to observe the effects of feeding mixed local hay (MH) consisted of 55% orchard grass (Dactylis glomerata L.), 35% tall fescue (Festuca arundinacea) and 10% red clover (Trifolium pratense) to Hanwoo steers on performance, carcass characteristics and meat quality (longissimus thoracis) compared with feeding imported timothy hay (TH) and local rice straw (RS). Results: Although no significant effects were found on animal performance and carcass yield grade, the carcasses of MH group had higher marbling score and quality grade than those of RS and TH group (P < 0.05). Therefore, higher fat content (P < 0.001), lower shear force and hardness value in the beef of MH group than that of other groups were observed. Furthermore, the beef of MH group had higher CIE $a^*$ value (redness) than that of other groups and feeding MH to Hanwoo steers lowered n-6 to n-3 fatty acids ratio in beef. Conclusions: Mixed hay provided benefits on meat quality and could be used for Hanwoo fattening program.

A study on the food habits of Korean native goats fed with roughage sources (조사료원에 따른 한국 재래산양의 채식습성에 관한 연구)

  • Gang, Byung-Ho;Lee, In-Duk;Lee, Soo-Kee;Lee, Hyung-Suk
    • Korean Journal of Agricultural Science
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    • v.38 no.3
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    • pp.445-452
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    • 2011
  • The object of this experiment was to investigate the food habits of Korean native goats fed with various roughage sources. The experimental trials were conducted at Unbong Animal Genetic Resources Station in 2008. The experimental roughages include five sources and 25 species in all; grasses and legumes: 5 species (mixed grasses, orchardgrass, tall fescue, alfalfa, white clover), native grasses and weeds: 5 species (mixed native grasses, Miscanthus sinensis Anderss, Arundinella hirta (Thunb.) Tanaka, Barnyard grass, short awn, forage crops and straw: 5 species (barley + hairy vetch, wheat + hairy vetch, rye silage, barley silage, baled rice straw), browse and fallen leaves: 5 species (Mixed browse, Oriental white oak, Quercus serrta Thunb., Oriental cherry fallen leaves, Japanese chestnut fallen leaves), and imported hay and straw: 5 species(timothy hay, tall fescue straw, annual ryegrass straw, klinegrass hay, alfalfa hay). Ten Korean native goats were selected which had nearly the same body weight (average $24{\pm}2.8$ kg). The chemical composition and dry matter digestibility of each roughage source and species were significantly different at the sampling area, plant species, growth stages and cutting period (p<0.05). Among all the 25 species of roughages, the favorite intake species order by Korean native goat was observed like this: Quercus aliena, Querancas serrta Thunb and Mixed browse, which was a lower intake compared to other domestic herbivores. The Korean native goats ate more roughages which had low fibrous contents, but high dry matter digestibility. The Korean native goats ate more roughages which had low fibrous contents, but high dry matter digestibility. On the other hand, compared to each roughage source, total intake amount by Korean native goats was showed as browse and fallen leaves (33.1%) among trials roughage sources. Based on these results, the food habit of Korean native goats seems to be closer to the browser.