• Title/Summary/Keyword: 동물문

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동물약사

  • 한국동물약품협회
    • 동물약계
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    • no.16
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    • pp.2-2
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    • 1995

  • 1. 동물용의약품등 취급규칙적용 사례 2. `95 현장애로 기술개발사업계획서 제출 3. 통합공고중 개정고시 송부 4. 동물용의약품 요건확인 세부요령 신$\cdot$구조문 대비표

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사료학의 대상이 되는 동물들 ⑤

  • Hwang, Bo-Jong
    • Feed Journal
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    • v.4 no.8 s.36
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    • pp.62-68
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    • 2006

  • 7월호에서는 실험동물 중 설치류에 대해 언급했다. 이번호에서는 척추동물문 Vertebrata,포유류 Mammalia의 토끼와 개에 대해 기술하고자 한다.

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동물약사

  • 한국동물약품협회
    • 동물약계
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    • no.82
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    • pp.2.1-2.1
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    • 2002

  • [ $\cdot$ ]동물용의약품등 제조업 허가사항 변경 $\cdot$동물용의약품등 수입관리자 신규 승인 $\cdot$동물용의약품등 수입자 확인사항 변경 $\cdot$가축전염병 예방약류 단가계약 체결 공고 $\cdot$축산법의 가축 범위에 대한 의견 문의 $\cdot$2002년도 가축방역사업 계획 및 실시요령

Feeding Ecology of the Eight Barbel Loach, Lefua costata (Pisces: Namacheilidae) in the Jusucheon (Stream) Gangneung-si, Korea (강릉시 주수천에 서식하는 쌀미꾸리 Lefua costata (Pisces: Namacheilidae)의 섭식생태)

  • Hyeok-Yeong Kwon;Mee-Sook Han;Myeong-Hun Ko
    • Korean Journal of Ichthyology
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    • v.35 no.1
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    • pp.30-38
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    • 2023

  • The feeding ecology of the eight barbel loach, Lefua costata, were investigated in the Jusucheon (Stream), Namyang-ri, Okgye-myeon, Gangneung-si, Gangwon-do, Korea from January to December 2013. L. costata mainly fed from March to December when the water temperature was higher than 5℃, and the feeding rate peaked in April~May and September~October. Their main food organisms analyzed by the index of relative importance (IRI) were Diptera (77.1%), Ephemeroptera (20.3%), Trichoptera (1.7%) and Odonata (0.4%) in Insecta. Other food organisms were various, such as Arhynchobdellida (0.6%) and Tubificida (0.1%) of Annelida, Nematoda (0.2%), fish (Actinopterygii, 0.1%), and Veneroida (0.01%) of the Mollusca. Major seasonal food organisms were Diptera (55.4%) and Ephemeroptera (41.6%) in spring, Diptera (92.7%) and Anelida (6.8%) in summer, Diptera (70.8%), Ephemeroptera (9.0%), Trichoptera (8.1%) and Annelida (7.7%) in autumn. By age, juvenile (0+) tended to eat only Diptera (mainly Chironomidae, 98.2%) that were relatively small in prey size. However, as it grew, the proportion of Diptera gradually decreased, and the proportion of relatively large Mayflies and Annelids increased. The size of the prey organisms showed rapid growth, with 2.5±1.05 mm for juvenile (0+), 3.2±1.29 mm for one year (1+), 3.7±2.05 mm for two years (2+), and 6.8±4.97 mm for three years or more (≥3+).

  • https://doi.org/10.35399/ISK.35.1.4 인용 PDF HTML