• Title/Summary/Keyword: seed ingestion

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Seed contents of sika deer (Cervus nippon) dung and the fate of seeds in a temperate short grassland in an urban park in Japan

  • Ishikawa, Haruna
    • Journal of Ecology and Environment
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    • v.34 no.3
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    • pp.295-305
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    • 2011
  • Many studies have suggested the positive effects of grazing by large herbivorous mammals on seed dispersal, but little is known about how herbivores could affect the fate of ingested seeds. This study examined the effects of seed ingestion by sika deer (Cervus nippon) on seed fate in a temperate grassland established in an urban park long resided by high densities of sika deer. I compared species composition and seasonal traits of seed abundance and maturity in the grassland community with those in deer fecal pellets. In total, 27 herbaceous species were observed, including the predominant Zoysia japonica. Seed phenology and production differed among the three dominant species (Z. japonica, Digitaria violascens, and Hydrocotyle maritima). Pellets contained at least 26 species of herbaceous seeds, and their abundance differed among species. Of the 26 species, 15 were observed in the vegetation at the study site. The peak of seed abundance in pellets for the dominant species appeared 1 month after the peak of inflorescence production (but most of the inflorescences were immature and susceptible to digestion) and consequently corresponded to the peak of mature inflorescence. Because sika deer are likely to ingest seeds at any maturity stage in the grassland and immature seeds are less hardened, ingested immature seeds can suffer great losses. The results suggested that the survival of germable seeds with great losses of immature seeds may be a factor determining which plant species can be successfully dispersed by herbivores.

Effect of skin and seed of Grape and on Dimethylnitrosamine-Induced Liver Damage in Rats

  • Shin, Mi-Ok;Shin, Ji-Young;Yoon, Sik;Moon, Jeon-Ok
    • Proceedings of the PSK Conference
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    • 2003.04a
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    • pp.181.1-181.1
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    • 2003
  • Polyphenolic compounds have been reported to exhibit a wide range of pharmacological properties. In this study. we investigated the hepatoprotective effect of skin and seed of grape which contain abundant polyphenol compounds on dimethylnitrosamine(DMN)-induced liver damage in rats. Ingestion of skin and seed of grape (10% diet, daily for 4 weeks) into the DMN-treated rats remarkably prevented the elevation of serum alanine transaminase, aspartate transaminase and alkaline phosphatase, and bilirubin levels. (omitted)

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Effects of Bird Ingestion on Seed Dispersal and Germination of the Elaeagnus macrophylla (보리밥나무(Elaeagnus macrophylla)의 종자 산포와 발아율에 미치는 조류의 영향)

  • Choi, Chang-Yong;Chae, Hee-Young
    • Journal of Korean Society of Forest Science
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    • v.96 no.6
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    • pp.633-638
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    • 2007
  • The Elaeagnus macrophylla is a stenoecious evergreen plant with nitrogen-fixing symbionts and its timing of fruit-ripening coincides with spring migration of many birds in southwestern Korea. To recognize bird species which eat fleshy fruits of the Elaeagnus macrophylla and to evaluate the effects of bird ingestion on seed germination and dispersal, we monitored birds and carried out germination experiments using its fruits and seeds from March to April 2007 at Hongdo Island, Jeonnam Province, Korea. As a result, eight species of birds including the Gray Starling (Sturnus cineraceus), the Brown-eared Bulbul (Hypsipetes amaurotis) and the Dusky Thrush (Turdus naumanni) ingested the fruits. Germination rate was enhanced but length of seed dormancy was instead shortened in ingested (collected from the feces of birds) and manually extracted seeds (obtained directly from the fruits) than in intact fruits collected directly from the plant. Moreover, the possible scale of seed dispersal by the frugivorous birds ranged up to 6.9 ha based on home ranges of starlings. Consequently, the Elaeagnus macrophylla supplies food resources for migratory birds, and the birds give the plant opportunities of new colonization. We suggest that this kind of interaction between the nitrogen-fixing plant and avian seed dispersers is applicable as a process of natural restoration in degraded coastal evergreen forests.

Development of hangover settlement from natural products

  • Kwon, So-Yeon;Lee, Geum-Ju;Choung, Se-Young
    • Proceedings of the PSK Conference
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    • 2003.10b
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    • pp.106.2-106.2
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    • 2003
  • Hangover is associated with alcohol metabolism in body after the ingestion of an alcoholic beverage. It has been known that hangover is caused by increasing blood acetaldehyde concentration. This study was carried out to evaluate effect against blood ethanol(EtOH) and acetaidehyde(AcH) on the seven natural products samples(Lotus seed, Sweet chest nut rose, Kohki, Gurume-K, Gurume-J, Phytic acid and Chlorophyll). Also, samples which were selected as good products were mixed. Then, effect against blood EtOH and AcH formulas were tested in vivo. (omitted)

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A case report of cocklebur poisoning in Hanwoo (Korean native cattle) (한우에서 발생한 도꼬마리 중독 증례)

  • Jun, Kyoungah;Lee, DongEun;Jeong, DaeEun
    • Korean Journal of Veterinary Service
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    • v.44 no.2
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    • pp.113-117
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    • 2021
  • Cocklebur poisoning in livestock can cause sudden death, with clinical signs include depression, inappetite, blindness, reluctance to move, hypersensitivity, ataxia and coma. The cause of cocklebur poisoning is ingestion of cocklebur sprout or seed, which contains carboxyatractyloside. In December 2020, a 47 month-old Hanwoo suddenly developed ataxia, and died after several hours. Hay mixed cocklebur seeds was fed to Hanwoo for 4 days before the symptoms. At autopsy, petechia and ecchymosis were seen on serous membrane of rumen and intestines. Peritoneal cavities contained a yellowish fluid and, hypoglycemia (Glu <20 mg/dL) was measured in blood test result. Microscopic lesions were karyolysis of centriloular hepatocyte and hemorrhage. Based on autopsy, blood and histopathological test, we diagnosed this case as cocklebur poisoning in Hanwoo.

Seed Production and Distribution System Improvement of Medicinal Crop Seeds (약용작물 종자 생산 및 보급체계 개선)

  • Jang, Woo Whan;Park, Jae Sang;Rubenecia, Maria. Rosnah Ultra.;Park, Chung Beom;Ahn, Young Sup;Lee, Sang Chul
    • Current Research on Agriculture and Life Sciences
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    • v.31 no.4
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    • pp.286-294
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    • 2013
  • Increasing concern for the health, well-being, and income of the people has expectedly brought continuous increase in the industrial value of medicinal plants in recent years as these are also used in foods and cosmetics. However, Korea's increased import of these products from China due to the FTA contract causes negative effects on its industrial value. In this regard, various measures for medicinal crop seed development and production, organization and expansion of circulation and forest land use deregulation are needed to promote the agricultural food industry including medicinal plants. As a measure, first, a database of medicinal plants should be built that can help to promote the national medicinal industry and the seed management system. Second, agricultural productivity should be enhanced via the development and supply of varieties of high quality medicinal plants. Third, there should be a good practice of the system maintenance for the production and supply of medicinal crop seeds. Fourth, production and distribution system of medicinal plants should be established by standardization of high quality seeds. Nowadays, the consumption pattern of medicinal crops is changing from direct ingestion to cosmetics, drugs, and food and this is expected to increase continuously. Consequently, the increased production of medicinal crops will support the development policy and the institutional improvement in response to this trend of the positive change of industrialization.

TFWT and OBT Concentrations in Rice Plants Exposed to HTO Vapor during Daytime and Nighttime at Different Seed-Developing Stages (벼의 종실 발육단계에 따른 주간 및 야간 HTO 증기 피폭시 TFWT 및 OBT 농도)

  • Choi, Yong-Ho;Lim, Kwang-Muk;Lee, Won-Yun;Kang, Hee-Suk;Choi, Heui-Joo;Lee, Han-Soo;Diabate, Silvia;Strack, Siegfried
    • Journal of Radiation Protection and Research
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    • v.28 no.1
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    • pp.9-18
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    • 2003
  • Rice plants at different seed-developing stages were exposed to HTO vapor in an exposure box for 1 h during daytime and nighttime to investigate the levels of tissue free water $^3H$ (TFWT) and organically bound $^3H$ (OBT) in different plant parts. In the daytime experiment, TFWT concentrations in leaves at the end of exposure $(h_0)$ were around 100% of the 1 hour mean HTO concentrations in air moisture whereas in the nighttime experiment, they were as low as $30{\sim}40%$ of the air concentration. TFWT concentrations in both experiments decreased very rapidly in the beginning but much mote slowly later and those at harvest were hundreds to hundred thousands times lower than those at $h_0$. OBT concentrations varied with time in different manners depending on plant parts and exposure times and differed between at $h_0$ and at harvest by factors of less than 10 on the whole. Even during nighttime exposures, OBT was produced at about a third the rate for daytime exposures. The degree of the conversion of airborne HTO into OBT in mature rice seeds, being several times higher in the daytime experiment than in the nighttime experiment, was highest after the exposure peformed at the most actively seed-developing stage for both experiments. It is estimated that OBT would contribute much more to the ingestion radiation dose than TFWT if rice plants are exposed to HTO vapor for the seed-developing period.

A Case of Lipid Pneumonia by Green Perilla Oil (들깨 기름 흡인에 의한 지질폐렴 1예)

  • Kim, Hee-Jung;Jeong, Dae-Joon;Kim, Kyeong-Hyun;Kim, Se-Hyun;Lee, Seung-Joon;Kim, Woo-Jin;Han, Seon-Sook
    • Tuberculosis and Respiratory Diseases
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    • v.68 no.6
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    • pp.354-357
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    • 2010
  • Exogenous lipid pneumonia is a rare disease resulting from the aspiration or inhalation of vegetable, animal, or mineral oils. In Korea, the most frequently implicated agent is squalen, which can be obtained from shark liver oil. Lipid pneumonia by aspiration of the vegetable oil is very rare. We experienced a 77-year-old man with a history of ingestion of green perilla oil. His clinical course was favorable; after exposure to the oil was stopped, the patient's symptoms improved.

Fenugreek seeds reduce aluminum toxicity associated with renal failure in rats

  • Belaid-Nouira, Yosra;Bakhta, Hayfa;Haouas, Zohra;Flehi-Slim, Imen;Cheikh, Hassen Ben
    • Nutrition Research and Practice
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    • v.7 no.6
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    • pp.466-474
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    • 2013
  • Despite the reports on safety concerns regarding the relationship between aluminum salts and neurological and bone disease, many countries continue to use aluminum as phosphate binders among patients with renal failure. In search for a diet supplement that could reduce aluminum toxicity related to renal failure, we carried out this prospective animal study in which the fenugreek seeds were assessed for their effects on rats nephrotoxicity induced by aluminum chloride ($AlCl_3$). Oral $AlCl_3$ administration during 5 months (500 mg/kg bw i.g for one month then 1600 ppm via drinking water) led to plasma biochemical changes, an inhibition of alkaline phosphatase (ALP), a decrease of total antioxidant status (TAS), and an induction of lipid peroxidation (LPO) in the blood and brain, in addition to kidney atrophy and morphological alterations at the level of Bowman's capsule, the glomerulus and different sorts of tubules, reminiscent of some known kidney disease. The treatment with the whole fenugreek seed powder (FSP) (5% in the diet) during the last 2 months showed its effectiveness in restoring normal plasma values of urea, creatinine, ALP and glucose, as well as re-increasing the TAS, inhibiting LPO and alleviating histopathological changes in the injured kidneys. This study highlights the induced nephrotoxicicity, as well as the related toxicity in the brain and bone, by chronic oral ingestion of the aluminum salts. However, the maintenance of a diet supplemented with fenugreek seeds could offer protection for the kidney, bone and brain, at the same time.

Energy budget of sandfish juvenile, Arctoscopus japonicus reared at different diet conditions and water temperature (수온과 먹이에 따른 도루묵 (Arctoscopus japonicus) 치어의 에너지수지)

  • Yang, Jae-Hyeong;Lee, Sung-Il;Yoon, Sang-Chul;Kim, Jong-Bin;Chun, Young-Yull;Park, Kie-Young
    • Journal of the Korean Society of Fisheries and Ocean Technology
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    • v.47 no.2
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    • pp.128-138
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    • 2011
  • In this study, energy budget was estimated to produce an efficient artificial seed. And it needs to enhance fisheries productivity of sandfish, A. japonicus. In order to estimate energy budget of the sandfish, A. japonicus juvenile fed on nonriched Artemia nauplii (NA) and the enriched Artemia nauplii (EA), of sandfish were reared at constant condition of seawater temperature of natural temperature (NT) and heated temperature (HT). During the reared period, energy used by the reared juveniles were calculated from estimates of data on ingestion, growth, oxygen consumption, nitrogen excretion and energy content. Energy budget of NT-NA, NT-EA, HT-NA and HT-EA were represented as 100C=66.49G+21.28M+0.78F+1.44U, 100C=67.54G+21.40M+9.39F+1.67U, 100C=66.86G+22.66M+8.01F+2.47U and 100C=67.06G+22.96M+7.70F+2.28U. The assimilation efficiency estimated NT-NA, NT-EA, HT-NA and HTEA were represented as 87.78%, 88.94%, 89.52% and 90.02%. Gross growth efficiency estimated NT-NA, NT-EA, HT-NA and HT-EA were represented as 66.49%, 67.54%, 66.86% and 67.06%. Net growth efficiency estimated NT-NA, NT-EA, HT-NA and HT-EA were represented as 75.75%, 75.94%, 74.68% and 74.49%. In this results, two ways could be considered to produce an efficient artificial seed of sandfish. To hasten the growth of sandfish juvenile, heated seawater (HT) and enriched Artemia nauplii (EA) should be inputted to reared condition. And to increase the energy efficiency, natural seawater (NT) and enriched Artemia nauplii (EA) should be inputted to reared condition.