• Title/Summary/Keyword: Domestic animals

Search Result 381, Processing Time 0.024 seconds

Studies on the distribution of intestinal microflora and characterization of Bifidobacterium isolated from the intestine of domestic animals (가축의 장관에서 분리되는 Bifidobacterium속 세균의 특성조사 및 장내세균총 분포에 관한 연구)

  • Lee, Wan-kyu
    • Korean Journal of Veterinary Research
    • /
    • v.34 no.1
    • /
    • pp.107-113
    • /
    • 1994

  • The present study was undertaken to obtain the basic knowledge on the distribution of intestinal microflora and characterization of Bifidobacterium isolated from the intestine of cattle, pigs, chicken and dogs. Bacteroidaceae and Streptococcus were isolated from the feces of cattle as predominant organisms, and Bifidobacterium was in counts of $8.65{\pm}0.21$ log 10 organisms. Bacteroidaceae, Eubacterium and Peptococcaceae counts on the feces of pigs were particularly high, but Bifidobacterium did not isolated. In hens and dogs, the counts of Bifidobacterium were $7.60{\pm}0.71$ and $8.15{\pm}2.04$ log 10 organism, respectively. Isolated 7 Bifidobacterial strains were identified respectively to B. thermophilum from cattle, B. pullorum and B. animalis from pigs, and B. longum, B. adolescentis and B. pseudolongum from dogs by their carbohydrate fermentation ability.

  • PDF

A Study on the Signal Transmission of Electronic Identification System for Automatic Breeding Management of Domestic Animals (가축의 사양관리 자동화를 위한 전자 개체인식장치의 신호전송에 관한 연구)

  • 한병성
    • Journal of Biosystems Engineering
    • /
    • v.24 no.1
    • /
    • pp.75-80
    • /
    • 1999

  • Signal separation and transmission are essential for automatic breeding management of domestic animals. Electronic identification system could transmit the signal of an individual within a defined range to a personal computer by an electromagnetic signal recognition method. Signals for individual recognition were originated by controlling 12 tri-state pins of IC(PT2262) in a transmitter. PT 2262 can generate 4,096 codes. These encoded signals were modulated and transmitted with wireless lines from the transmitter. Then they were demodulated in a receiver, and the signals were transmitted to the micro-processor through an interface and were identified in a PC.

  • PDF

Study on the Water and Environmntal Pollution Sources in the Agricultural Reservoir-Watershed Areas (농업용 저수지수역의 수질환경 오염원 조사 분석)

  • 서승덕;김동훈;윤학기
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.36 no.3
    • /
    • pp.100-112
    • /
    • 1994

  • This tudy is to survey and analysis the water quality phase of Agricultural reservoirs through the case study of 18 reservoirs in Kyungpook Province in preparation for prevention disasters from the environmental hazards such as water pollutions. In these cases, the most hazardous pollution acts were Domestic animals excrements firstly, Human living wastge water secondly, Tourist resort sewage and Fertilize waste etc. in regular sequences. In the analysed results, pH, EC, BOD, DO, Cu, Ph, Cd were less than standard values recommended by the Environmental Authority and so they were estimated in scope of the safety value respectively. But few of factors being gradually closed with the hazardous point in the few places. At present, the hazardous environmental acts originated from the Domestic animals ex-crements, Human living waste water and Fertilize waste etc. in case the agricultural reservoirs, have to strongly be improved much better than before and prepared safety conditions for the rural living and agricultural life sciences.

  • PDF