A5081857992- Genetic and phenotypic traits in livestock
- Diverse Approaches in Healthcare and Education Studies
- Effects of Environmental Stressors on Livestock
- Agriculture, Soil, Plant Science
- Diverse Topics in Contemporary Research
- Ruminant Nutrition and Digestive Physiology
- Consumer Perception and Purchasing Behavior
- Reproductive Physiology in Livestock
- Turfgrass Adaptation and Management
- Healthcare Education and Workforce Issues
- Berry genetics and cultivation research
- Nutrition, Health and Food Behavior
- Education and Learning Interventions
- Plant Growth Enhancement Techniques
- Agriculture Sustainability and Environmental Impact
- Ecology and Conservation Studies
- Innovations in Aquaponics and Hydroponics Systems
- Plant Virus Research Studies
- Plant Physiology and Cultivation Studies
- Plant Disease Management Techniques
- Technology and Data Analysis
- Psychosocial Factors Impacting Youth
- Customer Service Quality and Loyalty
- Enzyme Production and Characterization
- Horticultural and Viticultural Research
National Institute of Animal Science
2009-2021
Rural Development Administration
2014-2021
Daegu University
2012
Gyeongsangnam-do Agricultural Research and Extension Services
2008
Chungnam National University
2008
Recently, Jersey cattle was introduced and produced by embryo transfer to Korea. This study conducted investigate the differences of milk compositions between Holstein cows relationship days in (DIM) during early lactation. Data were collected from twelve lactating Department Animal Resources Development at National Institute Science. Cows parity 1 used, calved spring April March 2017. All housed two sections within a free-stall barn, which divided into six each breed, received basal total...
Objective: In this study we investigated the effect of seasonal thermal stress on milk production and compositions between Holstein Jersey dairy cows under temperateclimate in Korea.Methods: A total 9 lactating (2.0±0.11 parity) which had a daily yield 29.77±0.45 kg, days 111.2±10.29 were selected similarly at beginning experiments each season. Also, (1.7±0.12 20.01±0.43 114.0±9.74 experiments.Results: Results showed that average ambient temperature (°C) temperature-humidity index (THI)...
We evaluated the effects of heat stress on physiological responses and milk production in Holstein Jersey cows reared Korea. The mean average temperature-humidity index (THI) increased significantly from May to August then decreased until October. rectal temperature (RT) was compared with cows, as THI values 61 85. respiratory rate (RR) when value surface rumen udder higher than No significant difference noted respect relative serum volumes between breeds ranges, but we measured changes pH...
In this study, we prepared stabilized vitamin A and C nanoemulsions, investigated their efficacy on milk-specific proteins in bovine mammary epithelial cells (MAC-T). Emulsions of (vit-A) (vit-C) were using Lipoid S 75 microfluidization. The particle size polydispersity index (PDI) nanoemulsified vit-A vit-C studied. cytotoxic effect nanoemulsion-free was determined by an MTT assay. addition, the vitro expression pattern MAC-T quantitative RT-PCR. results showed that efficacies nanoemulsions...
The study aimed to determine the physical characteristics of estrus mucus and conception rates in dairy cattle.Samples from cervix were collected 108 cattle during heat examined for color consistency.Samples taken bred animals at starting day breeding completion one cycle.The cervical was studied based on its transparency while consistency thinness thickness mucus.The pregnancy diagnosis performed 60 th post breeding.Findings showed that transparent 58.3%, turbid 31.5% dirty 10.2%.It further...
논에서 내한성 이탈리안 라이그라스의 조 중 만생 숙기별 Kospeed, Kowinmaster, Hwasan 101호 3품종을 파종시기별로 9월 30일부터 5일 간격으로 10월 20일까지 5처리 파종하여 이듬해 5월 17일에 수확하였고 단위면적당 입모수, 월동률 및 건물수량에 미치는 시험을 2003년부터 2005년까지 수원에서 수행하였다. 라이그라스 조생종(Kospeed)의 출수기는 7일에서 13일이며 파종일이 늦으면 출수일도 늦어졌다. 또한 조생품종 라이그라스는 개화최성기에 수확할 수 있어 건물수량이 높고 모내기를 적기에 할 있었다. 중생종(Kowinmaster)은 16일에 출수하였고, 만생종(Hwasan 101)은 생육시기가 늦어 출수 전에 수확하여 20일에 마쳤다. 중부지방에서 적기 위해 17일 수확한 건물수량은 30일에 파종한 시험구의 조생종 Kospeed는 7,909 kg/ha이며, 중생종 Kowinmaster 6,398kg/ha, 만생종 5,204kg/ha이었다....
The purpose of this study was to determine the effects photoperiod and light intensity on milk production, composition, hormones levels blood metabolites indices Korean Holstein dairy cows in automatic milking system (AMS). A total 24 were selected used four subsequent treatments for experimental periods 60 days. programs consisted (1) Control: natural with 14.2 h period 9.4 dark (below 10 Lux); (2) T1: 16 long day (LDPP) 50 Lux light; (3) T2: LDPP 100 (4) T3: 200 light, respectively....
한우의 근내지방도에 따른 도체등급 요인과 이화학특성 및 관능특성에 관한 기초자료를 도출하기 위하여 73,316두(2009년)의 도체와 271두(2005년-2009년)의 한우 등심을 분석하였다. 근내지방도가 1에서 9로 증가할수록 도체중, 배최장근단면적 등지방두께는 암소, 수소, 거세우에서, 직선적으로 증가하였다(p<0.05). 성숙도는 암소와 거세우에서 증가하였고 평균 암소가 6.11로 가장 높았다. 이화학 특성 분석 결과 근내지방도의 증가에 따라 전단력은 8.58 kg에서 2.60 kg으로 감소하였으며(p<0.05) 보수력은 52.09%에서 58.66%로 명도는 34.08-41.97 범위로 증가되었다(p<0.05). 일반성분 분석결과 수분함량은 근내지방도 73.62%에서 55.87%로 감소(p<0.05)하였으나 단백질함량은 유의적인 차이가 없었다. 조지방 함량은 3.07%에서 26.70%로 증가(p<0.05)하였으며, 6까지 증가율은 비슷한 경향 이었으나 8 9의 각각...
In this study, Saccharomyces cerevisiae culture fluid (SCCF) has been added to a diet of lactating dairy cows attempt improve the ruminal fermentation and potentially increase dry matter intake (DMI) milk yield. This study was conducted investigate effects SCCF on yield blood biochemistry in during summer. Twenty-four Holstein were randomly assigned one four treatments: (1) total mixed ration (TMR-1) (Control); (2) TMR-1 supplemented with (T1); (3) TMR-2 (containing alfalfa hay) (T2); (4)...
오일 생산 과정에서 발생하는 부산물인 생산수(produced water)는 오일폐수(oily wastewater)의 대부분을 차지하기 때문에 환경적인 측면이나 자원적인 관점에서 볼 때, 생산수에서 오일성분을 추출 및 제거하는 기술은 매우 중요하다. 생산수 처리기술은 크게 물리적 방법과 생물학적 방법 그리고 화학적 방법으로 나눌 수 있다. 본 논문에서는 생산수의 오일제거 기술의 분류, 장단점 분석과 함께 연도별, 국가별, 출원인별, 세부기술별로 기술동향 특허분석을 하였다. Produced water from oil production processes is mostly composed of oily wastewater. So, it important to extract and remove the components produced environmentally in utilizing resources. treatment classified as physical,...
Objective Dairy cattle nutrient requirement systems acknowledge amino acid (AAs) requirements in aggregate as metabolizable protein (MP) and assume fixed efficiencies of MP used for milk protein. Regulation mammary synthesis may be associated with AA input output. The aim this study was to evaluate the effect nanoemulsified methionine cysteine on in-vitro expression (casein) bovine epithelial cells (MAC-T cells). Methods Methionine were nonionized using Lipoid S 75 by high-speed homogenizer....
본 시험은 국내육성 내한성 이탈리안 라이그라스의 확대 보급을 위한 종자생산 시험으로 품종인 화산 101호 및 코그린의 파종량별 종자수량 구성요소별 특성을 구명하기 위하여 2004년 9월부터 2007년 6월까지 3년간 국립축산과학원 초지사료과 시험 포장에서 수행 되었다. 파종 재식거리는 20 cm 세조파로 파종하였고, 시험구 면적은 <TEX>$12m^2$</TEX> (<TEX>$3\times4m$</TEX>), 파종량 은 5, 10, 20, 30, 40 kg/ha 품종별 5처리 난괴법 3반복으로 수행하였다. 채종시기는 조생종 "코그린"은 6월 16일, 중만생종 101호는 7월 3일에 수확하여 조생종과 중만생종간의 채종일은 조생종이 15일 정도 빨랐다. 라이그라스 101호의 구성요소에서 평균 이삭수는 471개/<TEX>$m^2$</TEX>, 이삭길이 28.5 cm, 등숙률 71% 이었으며, 633개/<TEX>$m^2$</TEX>, 24.0 82%이었다. 종자 생산량은...
본 연구는 키틴으로부터 면역증강물질인 N-acetyl-Dglucosamine을 축적시킴으로써 동물의 면역력을 향상시켜 폐사율을 줄이고자 키틴이 함유된 DFM을 급여한 생후 3~7개월령된 한우 송아지의 분변에서 키틴분해 효소능을 가진 미생물을 분리 동정하기 위해서 수행하였다. 송아지 분변 1g당 배지상에서 <TEX>$10^5$</TEX> 이상의 집락이 형성된 10균주 중 키틴을 분해하는 2균주와 키토산을 2균주를 선발하였으며 이들은 모두 용혈성을 갖지 않는 것으로 나타났다. 균주는 선발한 4균주 그람 음성균으로서 HANDI 110과 309는 균주로 선발되었으며 HANWOO와 HANYOO는 선발되었다. 분리된 미생물은 형태학적, 물리화학적 및 유전학적 분류를 통해 110는 Escherichia fergusonii으로, Acinetobacter parvus으로, HANWOO는 Comamonas koreensis으로 Chryseobacterium indologenes으로 각각...
본 연구는 농산부산물을 이용한 발효사료의 급여효과를 알아보기 위해 비육 흑염소의 생산성 및 영양소 이용률을 조사하였다. 증체조사를 위한 사양시험은 거세흑염소 24두를 이용하여 처리구당 6두씩 30일 수행하였고, 소화율 시험은 12두를 공시하여 3두씩 라틴방각법으로 실시하여, 처리구는 대조구(배합사료 볏짚 급여구)와 3개의 시험구(발효사료와 급여구)로 각각 배치하였다. 일당증체량은 대조구가 가장 높았고, T3구가 낮았다(p<0.05). 1일 두당 건물섭취량과 유기물섭취량은 시판사료를 급여한 718.8과 680.9 g, 농산부산물 첨가구가 634.2~699.2와 602.8~660.4 g으로 나타나 중 미강 높을수록 섭취량이 낮아지는 경향으로 나타났다. 건물과 유기물 소화율은 첨가구보다 유의하게 높았고(p<0.05). 시험구간에는 미강을 30% 첨가한 질소 축적률은 대조구와 T1구가 높았다. 따라서, 연구의 결과 발효사료(T1과 T2구)는 비교 시 증체는 86~90%, 건물소화율은...
韓国産イチゴ品種‘Mae-hyang’，‘Seol-hyang’および‘Keum-hyang’と‘章姫’を4℃または20℃で4日間貯蔵し，果肉硬度，可溶性固形物濃度，滴定酸度，アントシアニン濃度および糖組成の品種間差異を調査した．各品種の糖組成をみると‘Mae-hyang’および‘Keum-hyang’はスクロースが，‘Seol-hyang’および‘章姫’はフルクトースとグルコースが主体であった．また糖蓄積型ごとに各貯蔵温度における糖組成の変化が異なることが明らかになった．低温貯蔵によりいずれの品種も果肉硬度が上昇したが，特に‘Mae-hyang’において顕著であった．また，‘Mae-hyang’は貯蔵温度にかかわらず酸含量および糖酸比の変化が少なく，20℃貯蔵区における総可溶性糖含量の低下も他品種比べ少なく，安定した貯蔵品質を示した．一方，‘Seol-hyang’は他品種に比べ20℃貯蔵区において酸含量の上昇と糖酸比の低下が起こりやすかった．また，‘Keum-hyang’はいずれの貯蔵区でもアントシアニン濃度が高く，4℃貯蔵区でも糖含量の低下がみられた．これらの結果より，‘Ma...
Korean consumers prefer various types of watermelons such as the seedless or colored ones, but, nowadays, large-sized are produced more than small-sized ones. In order to satisfy all consumer needs, this research developed a vertical cultivation method that enables mass-production high-quality watermelons. The watermelon varieties used in study “Lycofresh No. 2” (diploid) and “Black Boy” (triploid), pillar were evaluated after dividing them into different types, I-type, Ո-Type, semi-runner...
The fertility of dairy cows has been declining worldwide.The number services per conception increased, and repeat breeder (RB) are considered important in the industry.However, there little research on RB Korea.The objective this study was to investigate relationship between serum biochemical profiles Holstein cattle Korea compare results with those studies conducted abroad.In addition, we investigated hidden factors that needed for become pregnant.Overall, 34 Korean Friesian were divided...
This study aimed to determine the effects of replacing corn with hydroponically sprouted barley (HSB) in Holstein heifer feed on growth performance and blood metabolites. For this purpose, was prepared hydroponic sprouting under optimized conditions, its chemical composition analyzed a dry matter (DM) basis. A total 30 heifers that were 7 months old an average body weight 212.60 ± 55.00 kg used completely randomized design comprising 10 repetitions three groups over period 11 months. Dietary...
Barley is an important cereal gain which traditionally used in some nations of Asia and North Africa, there has been growing interest using barley as ingredient food due to their nutritional value high content phyto-constituents. However, no study report on comparative feed between sprouted barley, cornflake alfalfa hay. Therefore, this we aimed evaluate the chemical composition, amino acid profile mineral 6 day fodder (SBF) compared with hay by AOAC method, alternative ingredient. Results...
Removing secondary branch to produce commodity watermelons is labor-costing and time-consuming work in traditional watermelon cultivation.Moreover, because elderly farmers for a long time with their backs bent, musculoskeletal disorders reduce the quality of life farmers.To improve this working condition, we developed 'Soonless' variety that does not need be pruned there no branch.For diploid oval watermelons, stripe width fruit wide, color it's skin green, flesh pinkish-red.It contains 480...