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No.20 (1973/12) >

 
Title :沖縄の家畜由来細菌の薬剤耐性 : I. 豚および鶏の糞便由来大腸菌について(畜産学科)
Title alternative :Drug Resistant Strains of Bacteria Isolated from Domestic Animals in Okinawa : I. Fecal Escherichia coli from pigs and chickens(Department of Animal Husbandry)
Authors :金城, 俊夫
天久, 朝保
栄野川, 盛治
Authors alternative :Kinjo, Toshio
Ameku, Choho
Enokawa, Seiji
Issue Date :1-Dec-1973
Abstract :沖縄各地に飼育されている健康な豚および鶏の糞便より大腸菌を分離し, ペニシリン(PC), ストレプトマイシン(SM), クロラムフェニコール(CM), テトラサイクリン(TC), エリスロマイシン(EM), カナマイシン(KM)など6種の抗生物質に対する感受性試験を寒天平板希釈法で実施した。得られた成績は以下の如くである。1.供試した菌株, 豚由来の175株および鶏由来の179株, 何れも使用した抗生物質の1つあるいはそれ以上に耐性を示した。2.豚由来大腸菌175株中172株(98.3%)が多剤耐性株で, うち3剤耐性株が全体の42.9%と優位を占め, 次いで4剤耐性の38.8%, 2剤耐性14.9%の順であった。3.これら耐性菌の耐性型は, PC-TC-SM-KMの4剤およびPC-TC-SMの3剤耐性型が多く, それぞれ36.0%および30.3%を示した。その他, TC-SM型が5.8%, TC-SM-KM型が4.6%得らたた。4.鶏由来179株については, 169株が多剤耐性株で, これらのうち102株, 全体の56.9%が3剤, 64株, 35.8%が2剤耐性株であった。5.鶏由来の耐性株中, 最も高頻度にみられる耐性型はPC-TC-SMの3剤耐性型で全株の54.7%を占めた。次いで, PC-TCの2剤型が35.2%であった。6.以上の成績より, 沖縄の豚, 鶏の間にも多剤耐性株が高率に分布しているといえる。
A survey for drug resistance was conducted among fecal Escherichia coli strains isolated from apparently healthy pigs and chickens in Okinawa. The results obtained were as follows : 1. All strains tested, 175 from pigs and 179 from chickens, were reistant to one or more antibiotics used; penicillin (PC), streptomycin (SM), chloramphenicol (CM), tetracycline (TC) or kanamycin (KM). 2. Of 175 strains of pigs, 172 (98.3%) were of multiple resistance, in which triple resistant strains were obtained most frequently in 42.9%, and follwed by quadruple resistant (38.8%) and double (14.9%). 3. The most common resistance configuration observed was the quadruple pattern of PC-TC-SM-KM (36.0%) and followed by triple of PC-TC-SM (30.3%), double of TC-SM (5.8%) and triple of TC-SM-KM (4.6%) in a decreasing orders. 4. Among 179 strains isolated from chickens, 169 were found to be multiple resistant. Of these multiple resistant strains, 102 (56.9%) were triple resistant and 64 (35.8%) were double. 5. In the case of chicken strains, the most common resistance configuration observed was triple pattern of PC-TC-SM which corresponded to 54.7% of all strains tested. The second most frequently occurring resistance pattern was double resistance of PC-TC (35.2%). 6. It was suggested from above findings that the incidence of multiple resistant strains was widespread among pigs and chickens in Okinawa.
Type Local :紀要論文
ISSN :0370-4246
Publisher :琉球大学農学部
URI :http://hdl.handle.net/20.500.12000/4441
Citation :琉球大学農学部学術報告 = The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus no.20 p.327 -334
Appears in Collections:No.20 (1973/12)

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