• Title/Summary/Keyword: hare

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Purification and characterization of β-secretase inhibitory peptide from sea hare (Aplysia kurodai) by enzymatic hydrolysis

  • Lee, Jung Kwon;Kim, Sung Rae;Byun, Hee-Guk
    • Fisheries and Aquatic Sciences
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    • v.21 no.5
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    • pp.13.1-13.8
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    • 2018
  • Amyloid plaque, also called senile plaque, the product of aggregation of ${\beta}$-amyloid peptides ($A{\beta}$), is observed in brains of the patients with Alzheimer's disease (AD) and is one of the key factors in etiology of the disease. In this study, hydrolysates obtained from the sea hare (Aplysia kurodai) were investigated for ${\beta}$-secretase inhibitory peptide. The sea hare's muscle protein was hydrolyzed using six enzymes in a batch reactor. Trypsin hydrolysate had highest ${\beta}$-secretase inhibitory activity compared to the other hydrolysates. ${\beta}$-secretase inhibitory peptide was separated using Sephadex G-25 column chromatography and high-performance liquid chromatography on a C18 column. ${\beta}$-secretase inhibitory peptide was identified as eight amino acid residues of Val-Ala-Ala-Leu-Met-Leu-Phe-Asn by N-terminal amino acid sequence analysis. $IC_{50}$ value of purified ${\beta}$-secretase inhibitory peptide was $74.25{\mu}M$, and Lineweaver-Burk plots suggested that the peptide purified from sea hare muscle protein acts as a competitive inhibitor against ${\beta}$-secretase. Results of this study suggest that peptides derived from sea hare muscle may be beneficial as anti-dementia compounds in functional foods or as pharmaceuticals.

A study of emotional communication strategy of storytelling through social media - Based on the "Bear and Hare" commercial of John lewis - (소셜미디어를 통한 스토리텔링의 감성 커뮤니케이션 전략 연구 - 존루이스 백화점의 "Bear and Hare" 광고를 중심으로 -)

  • Lee, dong-keun;Yun, young-du
    • Proceedings of the Korea Contents Association Conference
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    • 2016.05a
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    • pp.153-154
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    • 2016
  • 소셜미디어는 다대대의 양방향적 소통으로 정보전달의 신속성과 함께 인간관계의 네트워크 확장이 가능한 광고의 매체로서 주목을 받고 있어 그 활용사례로 영국의 존루이스 백화점 크리스마스 캠페인 광고 "Bear and Hare"의 감성 스토리를 활용한 소셜 커뮤니케이션 전략을 분석하였다.

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The Clever Hare in Torobo Folklore

  • Ashdown, Shelley
    • Cross-Cultural Studies
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    • v.28
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    • pp.87-114
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    • 2012
  • The Maa speaking Torobo people inhabiting the southern portion of the Mau Escarpment in Kenya approach both individual and community survival from a relational orientation focused on ethnic identity and responsibility. This social responsibility to the tribe is in stark contrast to Torobo relationships with other ethnic groups. The purpose of the research is twofold. First, the paper explores how folkloric language through a trickster image reflects important cultural and social ideals, understandings, and patterns of thought in Torobo world view. A second purpose is to offer ethnographic information to scholars and students' alike necessary for world view studies of eastern Africa specifically focused on the interplay between anthropomorphic tales and the social context in which these stories are utilized. The key research question for this analysis asks how the trickster image in Torobo folklore conceptualize the life experience. A Torobo folktale entitled, The Clever Hare, is the text chosen for analysis with the hare character as the protagonist. A second query explores the importance of the trickster image in understanding Torobo world view categories of Self and Other. The analysis contributes an ethnographic perspective for the world view categories of Self and Other as well as trickster folklore by examining the nature of Torobo-ness using the tale of the cunning hare as a research tool.

Development and characterization of nine microsatellite loci from the Korean hare (Lepus coreanus) and genetic diversity in South Korea

  • Kim, Sang-In;An, Jung-Hwa;Choi, Sung-Kyoung;Lee, Yun-Sun;Park, Han-Chan;Kimura, Junpei;Kim, Kyung-Seok;Min, Mi-Sook;Lee, Hang
    • Animal cells and systems
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    • v.16 no.3
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    • pp.230-236
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    • 2012
  • The Korean hare, Lepus coreanus, is an important mammal in ecosystem food chains, and is distributed across the entire Korean peninsula and northeastern China. Polymorphic microsatellite loci were developed using the biotinenrichment technique for use in population genetics studies. Five trinucleotide and four dinucleotide microsatellite loci were selected and tested on 22 Korean hare specimens collected from Gangwon Province and Gyeongsangbuk Province in South Korea. The number of alleles across the two sampling regions ranged from three to nine with a mean of 6.1. Mean observed and expected heterozygosities and polymorphic information content were 0.540, 0.627 and 0.579, respectively. Only one locus, Lc06, showed departure from Hardy-Weinberg equilibrium after applying the Bonferroni correction. Four microsatellites, Lc01, Lc03, Lc12, and Lc19, satisfied the criteria to serve as a core set of markers recommended for population genetics studies. These new microsatellite markers will be widely applicable to future genetic studies for management and conservation of the Korean hare and related species, including assessment of the genetic diversity and population structure of L. coreanus.

Severe Tick Infestation in a Hare and Potential Risk for Transmitting Pathogens to Humans

  • Zheng, Weiqing;Chen, Haiying;Liu, Xiaoqing;Guo, Xuejian;Fu, Renlong
    • Parasites, Hosts and Diseases
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    • v.49 no.4
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    • pp.419-422
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    • 2011
  • Severe tick infestation was found in a hare in a suburban area of Nanchang, Jiangxi Province, China. We sampled ticks and identified them based on their morphologic characteristics. Three species, Ixodes sinensis, which is commonly found in China and can experimentally transmit Borreliia burgdorferi, Rhipicephalus haemaphysaloides, and Haemaphysalis longicornis which can transmit Lyme disease were detected with an optical microscope and a stereomicroscope. Risk of spreading ticks from suburban to urban areas exists due to human transportation and travel between the infested and non-infested areas around Nanchang.

Differences in Health-related Fatty Acids, Intramuscular Fat and the Physico-chemical Quality in Mutton as Affected by Season, Place of Purchase and Meat Portion

  • Rani, Zikhona T.;Nantapo, Carlos W.T.;Hugo, Arnold;Muchenje, Voster
    • Asian-Australasian Journal of Animal Sciences
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    • v.27 no.11
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    • pp.1630-1637
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    • 2014
  • The objective of the study was to determine the quality and fatty acid profiles of mutton cuts purchased from rural and urban localities in South Africa. Five hundred and ten samples were collected in four seasons from both rural and urban shops and butcheries. Samples were immediately transported to the laboratory in cooler boxes with ice where the following physico-chemical characteristics of mutton were determined; meat pH, color ($L^*$, $a^*$, and $b^*$), cooking losses and Warner Braztler shear force and replicates stored at $-20^{\circ}C$ pending fatty acid analysis. Meat $L^*$ values were lowest ($24.7{\pm}0.49$) in winter and highest ($32.2{\pm}0.49$) in spring. The loin and sirloin cuts recorded the highest intramuscular fat whilst rib and leg cuts recorded the lowest intramuscular fat. In conclusion intramuscular fat, fatty acid profiles and physico-chemical quality of mutton were significantly affected by season and meat portion and not necessarily by the locality and class of shop.

Effect of Acacia karroo Supplementation on Growth, Ultimate pH, Colour and Cooking Losses of Meat from Indigenous Xhosa Lop-eared Goats

  • Ngambu, S.;Muchenje, V.;Marume, U.
    • Asian-Australasian Journal of Animal Sciences
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    • v.26 no.1
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    • pp.128-133
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    • 2013
  • The objective of the study was to determine the effect of Acacia karroo supplementation on growth, ultimate pH, colour and cooking losses of meat from indigenous Xhosa lop-eared goats. Eighteen castrated 4-month-old kids were used in the study until slaughter. The kids were subdivided in two treatment groups A. karroo supplemented (AK) and non-supplemented (NS). The supplemented goats were given 200 g per head per d of fresh A. karroo leaves. The kids were slaughtered on d 60 and sample cuttings for meat quality assessment were taken from the Longistimus dorsi muscle. The supplemented kids had higher (p<0.05) growth rates than the non-supplemented ones. The meat from the A. karroo supplemented goats had lower (p<0.05) ultimate pH and cooking loss than the meat from the non-supplemented goats. Acacia karroo supplemented goats produced higher (p<0.05) $b^*$ (yellowness) value, but supplementation had no significant effect on $L^*$ (lightness) and $a^*$ (redness) of the meat. Therefore, A. karroo supplementation improved growth performance and the quality of meat from goats.

Effects of Phosphate Complex the Functional Properties of Fish Meat and Animal Meat of Mixture Pastes -Effect of Properties on the Quality Stability and Technical- (인산성 첨가에 따른 혼합 연육제품에 관한 연구 -품질 및 기능적 성질에 미치는 영향-)

  • 홍종만
    • The Korean Journal of Food And Nutrition
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    • v.3 no.1
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    • pp.39-56
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    • 1990
  • The effects of six kinds of phosphate complex on the water holding capacity (W.H.C) and protein solubility of hair tail, yellow tail runner and dried pollack meat paste were investigated and animal meat(pork, chicken and hare meat complex) The formulation of six kind of phosphate complex employed to this experiment were made by mixing several phosphate such as sodium polyphosphate, sodium pyrophosphate, sodium acid pyrophosphate, potassim pyrophosphate, sodium ultra-meta-phosphate, sodium-tetra-phosphate and monoglyceride at different mixture ratio Among the six kinds of phosphate complex, phosphate B complex which was formulated by mixing sodium polyphosphate 40%, sodium pyrophosphate 30%, sodium tetra mata phosphate 10%, sodium ultra meta phosphate 10% was most effective on enchanging the W H. C, and protein solubility of hair tail, yellow tail runner dried pollack meat past and in case of pork, chicken and hare meat paste. Phosphate C complex which was formulated by mixing sodium polyphosphate 50%. sodium pyrophosphate 30%, sodium tetra meta phosphate 10%, potassium pyrophosphate 10%, was more effective them other phosphate complex, and thief optimum addition level was 0.5% respectively in weight of fish meat paste. Texture characteristics such as hardness, cohesiveness and springiness value of Kamaboko(fish meat and pork, chicken, hare meat complex past meat product) were evaluted as best when 0.5% of Phosphate B complex was added The optimum cooking condition of Kamaboko to get good texture was heating for 20 minutes at 12$0^{\circ}C$.

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A Research Review of Village Chicken Production Constraints and Opportunities in Zimbabwe

  • Mapiye, C.;Mwale, M.;Mupangwa, J.F.;Chimonyo, M.;Foti, R.;Mutenje, M.J.
    • Asian-Australasian Journal of Animal Sciences
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    • v.21 no.11
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    • pp.1680-1688
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    • 2008
  • Development of village chicken production can be a sustainable way of helping to meet the welfare needs of rural populations and raise their living standards. There is a dearth of information on research conducted to characterize, understand and develop the village chicken production systems in Zimbabwe. This review focuses on constraints, opportunities and research needs for the improvement of village chicken productivity in Zimbabwe. Village chicken production in Zimbabwe is extensive and dominated by indigenous chickens that exhibit remarkable adaptation to local environments. The multitude functions of village chickens, which include the provision of high quality protein meat and eggs, cash through sales and socio-cultural roles, are discussed in detail. Human gender aspects in village chicken production are highlighted. The factors that hamper village chicken productivity are reviewed together with opportunities and research needs. The major constraints include shortage of feed, poor health and housing management. Any improvements in these constraints may lead to sustainable increase in village chicken productivity.