• 제목/요약/키워드: nutritive component

검색결과 31건 처리시간 0.026초

Utilization of Oil Palm Frond - Based Diets for Beef and Dairy Production in Malaysia

  • Zahar, M. Wan;Hassan, O. Abu;Wong, H.K.;Liang, J.B.
    • Asian-Australasian Journal of Animal Sciences
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    • 제16권4호
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    • pp.625-634
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    • 2003
  • Oil palm fronds (OPF) are one of the main by-products of the oil palm industry in Malaysia. It contains about 38.5 % crude fibre with ME values of about 5.65 MJ/kg dry matter. OPF has great potential to be utilized as a roughage source or as a component in a complete feed for ruminant animals. This paper briefly reviews the availability of OPF in Malaysia and its importance in the local beef and dairy industry. About 26 million metric tonnes of OPF are produced on dry matter basis annually during pruning and replanting operations in the plantations. The nutritive value of OPF and studies to improve its feeding value is highlighted. The optimum level of inclusion for ruminant feeding is 30 % and improvement to intake and digestibility can be further enhanced with addition of other oil-palm by-products. Performances of beef and dairy cattle fed fresh OPF or as silage, pellets and cubes are shown. Good quality OPF silage can be produced without using any additive and the significant improvement on the rate of growth and milk yield were shown. With good formulations, OPF based diets can allow live weight gains of between 600-850 g/day and for local crossbred dairy animals, milk yield of about 11.1 to 20.3 liter/day can be obtained. Pellet based on ground OPF seemed to be less well utilized for ruminant feeding due to its smaller particle size. OPF based cubes which have longer particle size is more suitable for beef and dairy cattle. Long-term feeding of OPF based feeds have been shown to produce good quality carcasses, and the meat is safe for consumption.

비름(Amaranth)과 명아주(Quinoa) 재배종의 기능성 물질과 변이 (Functional Ingredient and Their Some Variance in Amaranth and Quinoa)

  • 이재학;김기준;이정일;이승택;류수노
    • 한국작물학회지
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    • 제41권spc1호
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    • pp.145-165
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    • 1996
  • Amaranth(Amaranthus spp. L.) and quinoa (Chenpodium quinoa Willd.) are old crops from South, Central America and Central Asia and their grains have been identified as very promising food crops because of their exceptional nutritive value. Squalene is an important ingredient in skin cosmetics and computer disc lubricants as well as bioactive materials such as inhibition of fungal and mammalian sterol biosynthesis, antitumor, anticancer, and immunomodulation. Amaranth has a component called squalene (2,6,10,15,19,23-hexamethyl-2,6,10,14,22-tetraco-sahexaene) about 1/300 of the seed and $5\~8\%$ of its seed oil. Oil and squalene content in amaranth seed were different for the species investigated. Squalene content in seed oil also increased by $15.5\%$ due to puffing and from 6.96 to $8.01\%$ by refining and bleaching. Saponin concentrations in quinoa seed ranged 0.01 to $5.6\%$. Saponins are located in the outer layers of quinoa grain. These layers include the perianth, pericarp, a seed coat layer, and a cuticle like structure. Oleanane-type triterpenes saponins are of great interest because of their diverse pharmacological properties, for instance, anti-inflammatory, antibiotic, contraceptive, and cholesterol-lowering effects. It is known that quinoa contains a number of structurally diverse saponins including the aglycones, oleanolic acid, hederagenin, and phytolaccagenic acid, which are new potential in gredient for pharmacological properties. It is likely that these saponin levels will be considerably affected by genetic, agronomic and environmental factors as well as by processing. With the current enhanced public interest in health and nutrition amaranth and quinoa will most likely remain in the immediate future within the realm of exotic health foods until such time as agricultural production meets the quantities and qualify required by industrial food manufacturers.

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표고버섯의 아미노산(酸) 및 비타민분석(分析) (Analysis of Amino Acid and Vitamin in Oak Mushroom (Lentinus edodes Sing))

  • 황병호
    • Journal of the Korean Wood Science and Technology
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    • 제11권1호
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    • pp.18-24
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    • 1983
  • 추용(椎茸)버섯의 영양학적(營養學的) 기초자료(基礎資料)의 보강(補强) 및 미분석자료(未分析資料)를 제공(提供)하기 위하여 일반분석(一般分析), amino 산(酸) 분석(分析), vitamin 분석(分析)을 행한 결과(結果)를 요약(要約)하면 다음과 같다. 1) 일반분석(一般分析)은 이미 발표(發表)된 영양분석표(榮養分析表)의 기본(基本) 분석치(分析値)와 유사(類似)하였으며, 2) Amino 산(酸)은 모두 17종 즉, aspartic acid, threonine, serine, glutamic acid, proline, glycine, alanine, valine, methionine, isoleucine, lecucine, tyrosine, phenylalanine, tryptophan, lysine, bistidine, arginine 등이 검색(檢索)되었는데, 가장 많이 함유(含有)된 성분(成分)은 glutamic 산(酸)이었다. 3) 필수(必須) 아미노산 8종(種) 즉, threonine, valine, methionine, isoleucine, lecucine, phenylalanine, tryptophan, lysine 등이 모두 함유(含有)되어 있어서 매우 중요(重要)한 식품(食品)이라는 것을 알수 있었다. 4) Vitamin은 총(總) 7종(種) 즉, A(${\beta}$-carotene), $B_1$ (thiamin), $B_2$(riboflavin), C (ascorbic acid), E (${\alpha}$-tocopherol), Niacin, Cholinechloride이 분석(分析)되었으며 가장 많은 양(量)은 Cholinechloride 이었다.

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Effect of fermented spent instant coffee grounds on milk productivity and blood profiles of lactating dairy cows

  • Choi, Yongjun;Rim, Jongsu;Lee, Honggu;Kwon, Hyunchul;Na, Youngjun;Lee, Sangrak
    • Asian-Australasian Journal of Animal Sciences
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    • 제32권7호
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    • pp.1007-1014
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    • 2019
  • Objective: This study was conducted to evaluate the fermentation characteristics under low mesophilic temperature of spent instant coffee ground (SICG) and to estimate the effect of fermented SICG (FSICG) as alternative feed ingredient on milk productivity of dairy cows. Methods: In the fermentation trial, fermentation of SICG was performed to investigate changes in characteristics using the microbial mixture (Lactobacillus plantarum, Saccharomyces cerevisiae, and Bacillus subtilis = 1:1:1) for 21 days at $20^{\circ}C$ under anaerobic conditions. Molasses was added at 5% of dry mass. In the animal trial, eighteen Holstein Friesian cows were used to evaluate the nutritive value of the FSICG which was fermented for 14 days under the same condition as the fermentation trial. Results: In the fermentation trial, the dry matter (DM) and organic matter content linearly decreased with fermentation time (p<0.001 and p = 0.008, respectively). The acid detergent insoluble nitrogen content linearly decreased with fermentation time (p = 0.037). The microorganism counts linearly increased for Lactobacillus plantarum, Saccharomyces cerevisiae, and Bacillus subtilis across fermentation time (p<0.001). In the animal trial, the DM intake of the control and FSICG treatment were not significantly different, as were milk yield, 4% fat corrected milk, fat-protein corrected milk, and feed to milk conversion content. Fat, protein, lactose, non-fat solids, milk urea nitrogen, and somatic cell counts were also not significantly different in milk composition between treatments. Conclusion: FSICG should be considered a sufficient substitute for cottonseed as a feed component, and 5% DM of a dietary FSICG level was appropriate for dairy cow diets.

How to develop strategies to use insects as animal feed: digestibility, functionality, safety, and regulation

  • Jae-Hoon, Lee;Tae-Kyung, Kim;Ji Yoon, Cha;Hae Won, Jang;Hae In, Yong;Yun-Sang, Choi
    • Journal of Animal Science and Technology
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    • 제64권3호
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    • pp.409-431
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    • 2022
  • Various insects have emerged as novel feed resources due to their economical, eco-friendly, and nutritive characteristics. Fish, poultry, and pigs are livestock that can feed on insects. The digestibility of insect-containing meals were presented by the species, life stage, nutritional component, and processing methods. Several studies have shown a reduced apparent digestibility coefficient (ADC) when insects were supplied as a replacement for commercial meals related to chitin. Although the expression of chitinase mRNA was present in several livestock, indigestible components in insects, such as chitin or fiber, could be a reason for the reduced ADC. However, various components can positively affect livestock health. Although the bio-functional properties of these components have been verified in vitro, they show positive health-promoting effects owing to their functional expression when directly applied to animal diets. Changes in the intestinal microbiota of animals, enhancement of immunity, and enhancement of antibacterial activity were confirmed as positive effects that can be obtained through insect diets. However, there are some issues with the safety of insects as feed. To increase the utility of insects as feed, microbial hazards, chemical hazards, and allergens should be regulated. The European Union, North America, East Asia, Australia, and Nigeria have established regulations regarding insect feed, which could enhance the utility of insects as novel feed resources for the future.

가잠사단백질의 각과정에서의 Cystine 성분에 대한 연구 (STUDIES ON THE CYSTINE COMPONENT IN THE SERICULTURAL PROTEINS OF BOMBYX MORI L.)

  • Choe, Byong-Hee
    • 한국잠사곤충학회지
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    • 제2권
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    • pp.1-31
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    • 1962
  • 본 연구는 견사중의 Cystine 성분을 가잠전과정을 통하여 기존재를 확인하고 견사구조중에서 cross linkage를 조성하고 있음을 확인하는데 있으며 다음과 같은 결론을 얻었다. 1. Cystine 결정체를 Folin 씨 방법으로 견사로부터 분리하였다. 2. 견사 및 그와 관련있는 과정에서 Sullivan 씨 방법으로 다음과 같이 분석하였다. 시료 Cystine 함유량 % A. 상엽단백질 0.175 B.잠란 0.33 C. 잠체 (탈지, 숙잠, 견사선제외) 0.41 D. 견사선 (숙잠) 1.23 E. 잠 0.0 F. 잠통 (탈지) 0.30 G. 잠아 (탈지) 0.60 H. 생계 0.22 I. Fibroin 0.175 J. Sericin 0.30 3. 잠체내의 Cystine 존재는 상엽에서 0.175%, 견사선에서 0.12%의 Methionine을 확인함으로 생화학적의의와 더불어 재확인하였다. 4. 견사선내의 Sulfhydryl 화합물은 Sericin과 Methionine으로 전환하는 동시에 전자는 액상견으로 분비되어 견사를 구성하고 후자는 영양목적으로 견사선세포 육성에 사용되는 것으로 믿어진다. 5. Cystine 성분량은 상품종, 잠품종, 자웅성, 육종과정과 사육환경에 따라 변화한다. 6. 잡종강세로 육성된 교잡종은 원잠종보다 효과적인 성장을 위하여 더욱 많은 영양성 아미노산을 필요로 한다. 7. 여기한 관찰을 통하여 견사중 아미노산조성은 어느정도 변화하는 것이며 Cystine은 섬유의 무정형부분 특히 Sericin에 함유되고 있다. 8. 순수한 Cystine 또는 양모 Cystine을 첨식한 결과 하등의 이익점을 초래하지 못하였음으로 상엽중에 함유되어있는 Cystine과 Methionine 함유량은 잠아의 영양생리에 충분한 것으로 보인다. 9. 견사중의 disulfide cross linkage는 Harris 씨 방법과 여러가지 염류와 산에 의한 수축현상으로 확인하였고 양모와 대조하여 시험하였다. 10. 본 연구중 견사의 사상구조와 액상견의 입망상구조를 현미경으로 포착하였다. 액상견의 입망상은 입상 peptide의 OH ion과 물의 H ion의 인력관계로 형성되고 있다는 것을 기 film의 배열상태로 고찰하게 되었고 상엽단백질의 입망상은 견사의 사상형성에 적당한 사료임을 보이고 있다. 11. 본 논문을 통한 Cystine 존재는 비록 그 량이 적지마는 견사중의 Cystine 전무에 대한 종래관념을 전환시킬 것이다.

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쌀의 품질평가 현황과 금후 연구방향 (Trend and Further Research of Rice Quality Evaluation)

  • 손종록;김재현;이정일;윤영환;김제규;황흥구;문헌팔
    • 한국작물학회지
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    • 제47권
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    • pp.33-54
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    • 2002
  • Rice quality is much dependent on the pre-and post harvest management. There are many parameters which influence rice or cooked rice qualitys such as cultivars, climate, soil, harvest time, drying, milling, storage, safety, nutritive value, taste, marketing, eating, cooking conditions, and each nations' food culture. Thus, vice evaluation might not be carried out by only some parameters. Physicochemical evaluation of rice deals with amy-lose content, gelatinizing property, and its relation with taste. The amylose content of good vice in Korea is defined at 17 to 20%. Other parameters considered are as follows; ratio of protein body-1 per total protein amount in relation to taste, and oleic/linoleic acid ratio in relation to storage safety. The rice higher Mg/K ratio is considered as high quality. The optimum value is over 1.5 to 1.6. It was reported that the contents of oligosaccharide, glutamic acid or its derivatives and its proportionalities have high corelation with the taste of rice. Major aromatic compounds in rice have been known as hexanal, acetone, pentanal, butanal, octanal, and heptanal. Recently, it was found that muco-polysaccharides are solubilized during cooking. Cooked rice surface is coated by the muco-polysaccharide. The muco-polysaccharide aye contributing to the consistency and collecting free amino acids and vitamins. Thus, these parameters might be regarded as important items for quality and taste evaluation of rice. Ingredients of rice related with the taste are not confined to the total rice grain. In the internal kernel, starch is main component but nitrogen and mineral compounds are localized at the external kernel. The ingredients related with taste are contained in 91 to 86% part of the outside kernel. For safety that is considered an important evaluation item of rice quality, each residual tolerance limit for agricultural chemicals must be adopted in our country. During drying, rice quality can decline by the reasons of high drying temperature, overdrying, and rapid drying. These result in cracked grain or decolored kernel. Intrinsic enzymes react partially during the rice storage. Because of these enzymes, starch, lipid, or protein can be slowly degraded, resulting in the decline of appearance quality, occurrence of aging aroma, and increased hardness of cooked rice. Milling conditions concerned with quality are paddy quality, milling method, and milling machines. To produce high quality rice, head rice must contain over three fourths of the normal rice kernels, and broken, damaged, colored, and immature kernels must be eliminated. In addition to milling equipment, color sorter and length grader must be installed for the production of such rice. Head rice was examined using the 45 brand rices circulating in Korea, Japan, America, Australia, and China. It was found that the head rice rate of brand rice in our country was approximately 57.4% and 80-86% in foreign countries. In order to develop a rice quality evaluation system, evaluation of technics must be further developed : more detailed measure of qualities, search for taste-related components, creation and grade classification of quality evaluation factors at each management stage of treatment after harvest, evaluation of rice as food material as well as for rice cooking, and method development for simple evaluation and establishment of equation for palatability. On policy concerns, the following must be conducted : development of price discrimination in conformity to rice cultivar and grade under the basis of quality evaluation method, fixation of head rice branding, and introduction of low temperature circulation.

Nutritional Evaluation of Bamboo Shoot Shell and Its Effect as Supplementary Feed on Performance of Heifers Offered Ammoniated Rice Straw Diets

  • Liu, J.X.;Wang, X.Q.;Shi, Z.Q.;Ye, H.W.
    • Asian-Australasian Journal of Animal Sciences
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    • 제13권10호
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    • pp.1388-1393
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    • 2000
  • The present study was conducted to examine the feasibility of utilising bamboo (Bambusa arundinacea) shoot shell (BSS) in ruminants. Chemical composition, rumen degradability and some antinutritional compounds were determined for fresh and boiled BSSs to evaluate its feed value and safety. Thirty-two Holstein heifers were allocated to four groups and used to investigate the response in growth rate to supplementing ammoniated rice straw with fresh shell (phase 1) or silage of boiled BSS (phase 2). All animals were offered ammoniated straw ad libitum with 1kg of cotton seed meal (phase 1) or 0.5 kg of cotton seed meal and 0.5 kg of concentrate mixture (phase 2) per head per day. The BSS was supplemented at levels of 0, 3, 6 or 9 kg/d (phase 1) and 0, 5, 10 or 15 kg/d (phase 2) (as fed basis). The BSS was very high in moisture content, and its contents of crude protein and neutral detergent fiber were 13~16% DM and 65~76% DM, respectively; boiling resulting in higher moisture and protein. No hydrocyanic acid was detected in both BSSs and content of tannins was negligible. Rumen degradability of BSS was reasonably high, and with boiling the rapidly degradable fraction decreased, and potentially degradable component increased. Silage of the boiled BSS was slightly lower in both rapidly and slowly degraded fractions than the fresh BSS. Animals consumed all supplemented BSSs without any adverse health problems. Intake of ammoniated straw decreased with the increasing levels of BSS, but total intake was higher in almost all supplementary groups than in the non-BSS. Heifers had a higher growth rate in phase 1 with fresh BSS than in phase 2 with ensiled shell, and daily weight gains were 622, 629, 744 or 690 g in phase 1, and 578, 575, 677 or 635 g in phase 2 at four BSS levels, respectively. For both phases growth rate was significantly higher for the animals in groups 3 and 4 than those in groups 1 and 2 (p<0.01), with little difference between groups 1 and 2 (p>0.05) but significant difference between groups 3 and 4 (p<0.05). Supplementation with BSS also resulted in an improved feed conversion rate, with the least concentrate consumption in group 3 for both phases. It is concluded that the BSS has a high potential nutritional value as indicated by its medium protein content, reasonably high rumen degradability, and that inclusion of BSS in ammoniated rice straw diet is not only safe to animals, but also may improve growth rate of ruminants and feed conversion rate. It may be disadvantageous to use high amounts of BSS in ammoniated straw diets.

6~7세 비만아에서 혈청 지질과 영양 상태에 관한 연구 (Serum Lipid Profile and Nutritional Status in 6~7 Year Old Obese Children)

  • 임지연;문지영;이철갑;문경래
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • 제11권2호
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    • pp.160-168
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    • 2008
  • 목 적: 6~7세 소아에서 영양섭취상태와 비만, 혈압, 혈중 지질 농도 등을 조사하여 비만의 예방과 치료에 필요한 정보를 얻고자 본 연구를 시행하였다. 방 법: 2007년 9월부터 10월까지 광주광역시와 전남지역의 3개 초등학교 1학년 483명(남아 233명, 여아 250명)을 대상으로 하였다. 체중, 신장, 비만도 및 BMI, 혈압, 맥박 등 신체를 계측 하고 공복 시 지질, 혈당등 생화학적 검사를 시행하고, 부모가 작성한 설문지를 통해 각 아동들의 영양 상태를 평가 하였다. 결 과: 1) 비만은 9.9%이었으며 남아에서 10.3% (경도 4.7%, 중등도 이상 5.6%), 여아에서 9.6% (경도 6.4%, 중등도 이상 3.2%)이었다. 성별에 따른 차이는 없었다. 반면 12%에서 영양 부족을 보였다. 평균 총 칼로리 섭취량은 남아, 여아에서 각각 1,781 kcal, 1,640 kcal이었으며 각각 35% 이상, 30%에서 권장량 이상을 섭취하고 있었으나 성별에 따른 유의한 차이는 없었다. 이상지질혈증은 총 콜레스테롤이 200 mg/dL 이상인 경우 8.4%이었으며, LDL 콜레스테롤이 130 mg/dL 이상인 경우 3.1%이었다. 중성 지방이 130 mg/dL 이상인 경우 5.0%였고, HDL 콜레스테롤이 낮은 경우는 4.4%였고, 동맥경화지수가 4.0 이상인 경우는 12.1%였다. 2) 비만정도에 따라 수축기 혈압, 중성 지방, LDL 콜레스테롤이 유의한 차이가 있었으며 총 섭취 열량과 영양구성과는 상관관계가 없었다. 3) 비만도에 따라 중성지방, LDL 콜레스테롤, 동맥경화지수에서 이상지질혈증 발생률이 유의하게 높은 상관관계가 있었다. 4) 고혈압은 2.1%에서 나타났으며 혈압군에서 BMI, 중성지방이 유의하게 높았다. 5) BMI는 혈압, LDL 콜레스테롤, 중성지방과 양의 상관관계가 있었으며, 비만도는 혈압, LDL 콜레스테롤, 중성 지방, 총 콜레스테롤과 양의 상관관계가 있었다. 6) BMI는 총 섭취 열량과 섭취한 영양 구성 과 상관 관계가 없었고 통계적으로 유의하기 않았다. 결 론: 6~7세에서 비만도가 높아질수록 유의하게 고혈압과 이상지질혈증의 유병률이 높았다. 따라서 6~7세에서부터 비만증과 합병증에 대한 선별검사, 관리 및 치료가 필요하다.

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파종시기 및 품종이 사일리지용 옥수수의 수량과 사료가치에 미치는 영향 II. 경엽, 암이삭 및 전식물체의 섬유소 및 소화율 (Effect of Planting Date and Hybrid on Forage Yield and Quality of Corn for Silage. II. Fiber component and digestibility of ear, stover and whole plant)

  • 김종덕;김동암;이종경;김종근;강우성
    • 한국초지조사료학회지
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    • 제19권3호
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    • pp.221-232
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    • 1999
  • 일반적으로 건물수량과 암이삭비율을 사일리지용 옥수수(Zea mays L.)의 생산성 비교에서 중요한 요인으로 생각하고 있다. 그러나 사일리지용 옥수수의 품종 비교에는 사초생산성 뿐만아니라 경엽의 품질도 중요하다. 그래서 본 시험은 정부장려 8품종을 한달 간격으로 파종하였을 때 사일리지용 옥수수의 부위별 사료가치를 비교하기 위하여 수행하였다. ADF, NDF, ADL, hemicellulose 및 cellulose 함량은 경엽, 암이삭 및 전식물체 모두에서 적기파종시가 만기파종시보다 낮았다(P<0.01). 공시 품종간에는 경엽과 전식물체에서 섬유소 함량의 차이가 있었다(P<0.01). 파종기간 TDN 및 $NE_1$는 경엽 및 전식물체에서 유의적인 차이가 있었다. 공시품종간 TDN 및 $NE_1$ 는 경엽, 암이삭 및 전 식물체 모두에서 유의적인 차이가 있었다. 전 식물체에서는 공시품종중 'G4624', 'P3352' 및 'P3394'의 TDN 및 $NE_1$가 다른 품종보다 높았다(P<0.05). In vitro 건물 소화율은 적기파종이 만기파종보다 높았으며(P<0.05), 또한 공시품종간에도 유의적인 차이가 있었다. ln vitro 건물소화율과 NDF, ADF, hemicellulose 및 cellulose의 상관계수는 각각 $-0.82^{**}$, $-0.7^{**}$, $-0.63^{**}$$-0.69^{**}$이었다. 이상의 연구결과를 볼 때 사일리지용 옥수수의 사료가치를 높이기 위해서는 적기파종이 옥수수의 사료가치를 증가시킬 수 있었다. 그리고 품종간 비교에서는, 특히, 경엽과 전식물체의 사료가치가 차이가 있었다. 그러므로 사일리지용 옥수수의 품종 선발에는 경엽과 전식물체의 사료가치도 중요한 요인이라고 생각된다.

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