• Title/Summary/Keyword: temperate

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DAIRY PRODUCTION AND CROSSBREEDING IN MALAYSIA: AN EVALUATION

  • Dijkman, J.T.
    • Asian-Australasian Journal of Animal Sciences
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    • v.5 no.2
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    • pp.309-314
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    • 1992
  • A review of dairy development and crossbreeding programmes in Malaysia since 1953 is undertaken, based on the relevant literature and the writer's experience. The need for higher domestic milk production and the role of crossbreeding in the realization of this objective is explained. A retrospective evaluation is made of the past crossbreeding programmes and of the decision to use temperate dairy breeds for the purpose. Current dairy development under the 'New Economic Policy' of the Malaysian government and the major problems connected with the importation of high-milk producing animals are discussed. To overcome existing constraints, future strategies for crossbreeding and dairy development, based on long-term objectives, are proposed. It is concluded that crossbreeding will only be useful if the introduction of high yielding dairy animals is combined with an improvement of existing husbandry systems.

SELECTION OF THE SENSORS FOR THE ENVIRONMENTAL CONTROL SYSTEMS OF PIG-HOUSING IN TEMPERATE ZONE

  • Chang, Dong-Il;Chang, Hong-Hee
    • Proceedings of the Korean Society for Agricultural Machinery Conference
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    • 1996.06c
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    • pp.1126-1135
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    • 1996
  • This study was conducted to select the sensors for measuring temperature, relative humidity, and air velocity among the major environmental factors affecting the pig productivity as a part of the study for the optimum production system model development of pig-housing. The study results are summarized as the follows : Two sensors , HMP233L and HANI, were tested for measuring temperature and relative humidity , Test results were analyzed by the statistical methods. And the sensor, HMP233L was selected as a proper sensor for temperature sand relative humidity measurement . An air velocity sensor was tested. Test results showed that its accuracy was low and incongruent for the air velocity measurement when it was lower than 4m/s.

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Recent advances in the development of biotech bentgrass (생명공학 벤트그라스 개발)

  • Hwang, Ok-Jin;Kim, Jeong-Il
    • Journal of Plant Biotechnology
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    • v.36 no.4
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    • pp.327-335
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    • 2009
  • Creeping bentgrass (Agrostis stolonifera L.) is economically important as the principal turfgrass species for golf course greens and fairways in temperate climates around the world. As the utilization area of the turfgrass species increases recently, the demand for new and improved cultivars increases. Thus, substantial progress has been made in applying modern biotechnology to develop genetically engineered (i.e., biotech) creeping bentgrass with new traits that eluded the breeders. This review article addresses the advances made in developing biotech creeping bentgrass, which are categorized in the following topics: (i) genetic transformation of creeping bentgrass, (ii) development of various biotech creeping bentgrasses by genetic engineering, and (iii) progresses in the deregulation of herbicideresistant creeping bentgrass.

Evaluation of Antidiarrhoeal Activity of Aerva species

  • Joanofarc, J.;Vamsadhara, C.
    • Natural Product Sciences
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    • v.9 no.3
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    • pp.177-179
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    • 2003
  • The genus Aerva is distributed is temperate and stropical Asia and Africa. Aerva species, Aerva lanata and Aerva javanica have been used for antidiarrhoeal activity in Indian traditional medicine. A.lanata and A.javanica were screened separately for their. anti-diarrhoeal activity and their action on intestinal transit on their vacuum dried ethanolic and aqueous extracts at the dose of 800 mg/kg by standard methods. All the extracts showed significant antidairrhoeal activity and significantly reduced intestinal transit in charcoal meal test. The results illustrate that the ethanolic and aqueous extracts of A.lanata and the ethanolic and aqueous extracts of A.javanica have significant antidiarrhoeal activity and the activity may be attributed to its effect on intestinal transit. The present study supports the claim of Aerva lanata and Aerva javanica as antidiarrhoeal drugs in the Indian system of medicine.

Pharmacognostical Studies on the Aconitum species from Korea(1) -On the Aconitum triphyllum $N_{AKAI}$- (한국산(韓國産) 초오속(草烏屬) 식물(植物)의 생약학적(生藥學的) 연구(硏究)(제1보)(第1報) -Aconitum triphyllum $N_{AKAI}$에 관해서-)

  • Young, Han-Suk;Park, Jong-Hee
    • Korean Journal of Pharmacognosy
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    • v.18 no.1
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    • pp.26-33
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    • 1987
  • Aconites distribute widely in northern hemispere of the earth reaching to arctic zone from warm and temperate one. Hitherto, these tuberous roots, 'Cho O', have been known to be famous plant poisons and essential important drugs possessing many remedial effects in each region of the world, especially in Korea and China. In Korea, although these plants grow widely in whole districts, their classifications are quite obscure. Especially, Aconitum triphyllum $N_{AKAI}$ is distributed whole districts. To clarify the botanical origin of 'Cho O', we studied on the anatomical characteristics of Aconitum triphyllum $N_{AKAI}$ growing wild in Korea. As a result, the environmental varieties of A. triphyllum $N_{AKAI}$ were recognized.

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Suitability Analyses of Domestic Hardwoods as Furniture Parts (국산(國産) 활엽수재(闊葉樹材)의 가구부재(家具部材) 이용(利用) 타당성(妥當性) 분석(分析))

  • Kim, Gyu-Hyeok;Kim, Jin-Sung
    • Journal of the Korean Wood Science and Technology
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    • v.27 no.1
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    • pp.24-29
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    • 1999
  • A model to classify domestic hardwood species for furniture applications was developed by using discriminant analysis. The results indicated that among those 36 domestic hardwoods, which have the desired properties for use in furniture parts, 15 species would possibly substitute for temperate hardwoods imported from North America and 21 species for tropical hardwoods imported from southeast Asia and western Africa.

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Effect of Different Soil pH on the Root Growth of Temperate Grass Species (토양산도의 차이가 주요화본과목초의 뿌리생육에 미치는 영향)

  • 이혁호;박근제;이종열
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.7 no.1
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    • pp.1-7
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    • 1987
  • A pot experiment conducted to investigate the root elongation and weight of grasses, i.e. Orchardgrass, tall fescue and perennial ryegrass under the conditions adjusted pH of half vertical part of pot soil to seven levels from 2 to 8. 1. Root growth was drastically decreased as soil pH was lowed. 2. Higer the soil pH, longer the root length. Increase of soil pH to 6 increased the root length of orchardgrass, perennial ryegrass and tall fescue. 3. Regardless of grass species, most of roots distributed to the soil which adjusted pH from 6 to 7. 4. Dry weight of root was increased to pH 7 of soil in orchardgrass and perennial ryegrass and was 55 to 78% of production of pH 6 compared with soil pH 7. In case of tall fescue, dry root weight in the soil pH 7 was 69.8% of root weight growed in soil pH 6.

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On the Trial Cultivation of Beta vulgaris L. and its Sugar Contents (사탕무우 재배와 당량시험)

  • Lee, Yong-Choo;Park, Chae-Joo;Kim, Dong-Hee
    • Korean Journal of Pharmacognosy
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    • v.1 no.2
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    • pp.29-30
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    • 1970
  • Sugar beet represents the root of Beta vulgaris L. var. rapa $D_{UMORT}$. of the family, Chenopodiaccae. Sugar beet has been generally cultivated in the northern temperate region, but in our country, there has been seen no production of sugar from the cultivated beet so far We obtained the seeds of sugar beet from Canada and began to cultivate them in our N.I.H. Medicinal Plant Garden from April, 1969. We found such successful 90% germination, where with in October obtained 1kg root per stub which contained $16{\sim}20%$ of sugar.

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Foraminifera from shell deposits of the Jindo Island (진도 패각층의 유공충)

  • Lee Ho-Young
    • The Korean Journal of Petroleum Geology
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    • v.1 no.1 s.1
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    • pp.63-67
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    • 1993
  • Foraminiferal assemblages from shell beds of Jindo Island indicate shallow water accumulation under warm to temperate condition near the mouth of a small estuary. 11 species of benthonic Foraminifera belonging to 10 genus have been extracted from 12 samples. Cavarotalia annectens dominates, accounting for 57 to 90 percent of the total fauna. The foraminiferal assemblages of the shell beds indicates Post-glacial sedimentation.

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