• Title/Summary/Keyword: 방어율

Search Result 348, Processing Time 0.034 seconds

Efficacy of Concurrent Administration of Live and Killed Newcastle Disease Vaccines in Day - Old Broiler Chicks (육용계 초생추에 대한 뉴켓슬병 생독 및 사독 백신의 동시접종 효과)

  • 최정옥;박승주;위성하
    • Korean Journal of Poultry Science
    • /
    • v.15 no.3
    • /
    • pp.193-198
    • /
    • 1988

  • In order to examine the efficacy of concurrent vaccination with live and killed Newcastle disease(ND) vaccines two types of each live($B_1$ and LaSota) and killed(gel and oil) vaccines of all commercial origin were administered either alone or simultaneously to day-old broiler chicks having maternal antibody. Live vaccines were given by conjuntival instillation in volumes of 25${\mu}\ell$ containing $10^{6.0}$ to $10^{6.3}$ median embroy infective dose(EH)) while killed vaccines were given in 0.3$m\ell$ volumes subcutaneously at the back of the neck Hemagglutination inhibition(HI) antibodies were determined at weekly intervals until 8 weeks of age and protection rate was determined at 4 and 8 week of age by challenge inoculation with virulent ND virus(NDV). During the 8 weeks experimental period concurrent administration of live and oil vaccine produced the highest level of HI antibody and the most satisfactory protection, whereas concurrent rent vaccination with live and gel vaccine induced poor immune responses. There was no noticeable difference in the efficacy between the live vaccines, Bl and LaSota when simultaneously administered with oil vaccine. Except for oil vaccine, single administration of either live or killed vaccine at day-old produced less than 50% protection at 4 and 8 weeks postvaccination(PV). Oil vaucine alone induced 80% and 70% protection at 4 and 8 week PV, respectively. Concurrent vaccination caused on visible side reaction like respiratory symptoms and did not negatively influence the growth rate of birds until the end of experiment.

  • PDF

A Note on Statistical Concepts Being Improperly Used in Sports (스포츠에서 부적절하게 사용되고 있는 통계적 개념에 관한 소고)

  • 김혁주
    • The Korean Journal of Applied Statistics
    • /
    • v.14 no.1
    • /
    • pp.201-210
    • /
    • 2001

  • 스포츠에서 통계적 개념이 부적절하게 사용되고 있는 몇 가지의 경우들을 살펴보고, 이를 바로잡기 위한 방안을 제시한다. 먼저 야구의 경우를 자세히 살펴본 뒤 축구와 권투의 경우에 관해서도 논의한다.

  • PDF

Analysis of Handball Strategies of World Top Class Team to Prepare Tokyo2021 Olympic games (2021년도 도쿄올림픽 대비 세계 상위권 여자핸드볼 전력분석)

  • Kang, Yong-Gu;Kim, Hyun-Tea;Kwak, Han-Pyong
    • Journal of the Korea Convergence Society
    • /
    • v.11 no.6
    • /
    • pp.359-365
    • /
    • 2020

  • The purpose of this study was to collect and analyze information on the major scoring paths, success rate by shooting type, assist, steal, block, and goalkeeper defense rate by shooting type in the 2019 World Women's Handball Championship. Based on the research results, the following conclusions were drawn. First, as a result of the analysis of the scoring route, 1st the Netherlands and 2nd Spain had 6m shots and 7m shots the most. Second, in the success rate analysis results by shooting type, the top 6 teams showed 7m shot, breakthrough shot, and fast shot. Third, according to the result of assist frequency analysis, the fourth place in the competition Norway scored the most assists among the six teams. Fourth, as a result of the steel frequency analysis, Norway scored the most with 5.2 on average among the six teams. Fifth, as a result of analyzing the goalkeeper defense rate by shooting type, it was found that all 6 team's goalkeepers had the highest defense against 9m shooting. Therefore, for an in-depth analysis of the game strategy, it is considered that it is necessary to understand the characteristics of individual player's performance and collect information will be followed by a follow up research in the future.

  • https://doi.org/10.15207/JKCS.2020.11.6.359 인용 PDF KSCI