كتاب  Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranesكتب الطب

كتاب Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranes

Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranes من كتب طب بيطرى Bacteriological and epidemiological ®ndings during examination of the uterine content of ewes with retention of fetal membranes A. Tzora a , L.S. Leontides b , G.S. Amiridis b , G. Manos a , G.C. Fthenakis b,* a Technological Educational Institution of Epirus, Arta, Greece b Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly, P.O. Box 199, 43100 Karditsa, Greece Received 18 January 2001; accepted 15 June 2001 Abstract We included 92 pairs of ewes with or without retention of fetal membranes in a cohort study of 25 ̄ocks in Southern Greece. We obtained two uterine content samples under aseptic conditions, by introducing a swab into the uterus of these ewes, on the 2nd±4th and the 5th±9th day after lambing. We used conventional bacteriological techniques to isolate and identify bacteria and to carry out antimicrobial agents susceptibility testing. The prevalence of bacterial intrauterine contamination among ewes with retention was 24% on the ®rst and 46% on the second sampling 6 P < 0 : 0001) and that among ewes without retention was 8 and 2% 6 P > 0 : 05), respectively. Clinical signs accom- panying the retention of fetal membranes were more frequently observed among ewes with intrauterine contamination than among those without 6 P ˆ 0 : 0007). The odds of an ewe having an intrauterine contamination increased multiplicatively by 1.06 when the median duration of retention in the ̄ock increased by 6 h. The principal bacteria isolated from the ewes with retention were Arcanobacterium pyogenes and Escherichia coli ; 21% of 73 isolates tested were found resistant to at least one antimicrobial agent. # 2002 Elsevier Science Inc. All rights reserved. Keywords: Sheep reproduction; Fetal membranes; Infection; Metritis; Arcanobacterium pyogenes 1.Introduction Postpartum intrauterine contamination has been studied extensively incows. Thegenital tractisparticularlysusceptibletoinfectionsimmediatelyafter calving,butitisusuallyable to overcome the nonspeci®c bacterial contamination [1]. In an early study,  93% of dairy Theriogenology 57 62002) 1809±1817 * Corresponding author. Tel.: ‡ 30-932-641-379; fax: ‡ 30-441-66041. E-mail address: [email protected] 6G.C. Fthenakis). 0093-691X/02/$ ± see front matter # 2002 Elsevier Science Inc. All rights reserved. PII: S 0093-691X602)00684-2
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وصف الكتاب : Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranes من كتب طب بيطرى

Bacteriological and epidemiological ®ndings during
examination of the uterine content of ewes
with retention of fetal membranes
A. Tzora
a
, L.S. Leontides
b
, G.S. Amiridis
b
,
G. Manos
a
, G.C. Fthenakis
b,*
a
Technological Educational Institution of Epirus, Arta, Greece
b
Department of Obstetrics and Reproduction, Veterinary Faculty, University of Thessaly,
P.O. Box 199, 43100 Karditsa, Greece
Received 18 January 2001; accepted 15 June 2001
Abstract
We included 92 pairs of ewes with or without retention of fetal membranes in a cohort study of 25
̄ocks in Southern Greece. We obtained two uterine content samples under aseptic conditions, by
introducing a swab into the uterus of these ewes, on the 2nd±4th and the 5th±9th day after lambing.
We used conventional bacteriological techniques to isolate and identify bacteria and to carry out
antimicrobial agents susceptibility testing. The prevalence of bacterial intrauterine contamination
among ewes with retention was 24% on the ®rst and 46% on the second sampling 6
P
<
0
:
0001) and
that among ewes without retention was 8 and 2% 6
P
>
0
:
05), respectively. Clinical signs accom-
panying the retention of fetal membranes were more frequently observed among ewes with
intrauterine contamination than among those without 6
P
ˆ
0
:
0007). The odds of an ewe having
an intrauterine contamination increased multiplicatively by 1.06 when the median duration of
retention in the ̄ock increased by 6 h. The principal bacteria isolated from the ewes with retention
were
Arcanobacterium pyogenes
and
Escherichia coli
; 21% of 73 isolates tested were found resistant
to at least one antimicrobial agent.
#
2002 Elsevier Science Inc. All rights reserved.
Keywords:
Sheep reproduction; Fetal membranes; Infection; Metritis;
Arcanobacterium pyogenes
1.Introduction
Postpartum intrauterine contamination has been studied extensively incows. Thegenital
tractisparticularlysusceptibletoinfectionsimmediatelyafter calving,butitisusuallyable
to overcome the nonspeci®c bacterial contamination [1]. In an early study,

93% of dairy
Theriogenology 57 62002) 1809±1817
*
Corresponding author. Tel.:
‡
30-932-641-379; fax:
‡
30-441-66041.
E-mail address:
[email protected] 6G.C. Fthenakis).
0093-691X/02/$ ± see front matter
#
2002 Elsevier Science Inc. All rights reserved.
PII: S
0093-691X602)00684-2

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تم اضافته في : السبت , 26 مارس 2016م.
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Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranes من كتب طب بيطرى

cattlewere found to have avarying degree of bacterial contamination of their uterus during

the early postpartum period, but this decreased to 9% 46±60 days after calving [2]. This is

probably related to the large amount of neutrophils, physiologically found in the uterus

during the early puerperium [3,4]. Various risk factors have been associated with post-

partum uterine infection [5]. Among them, retention of fetal membranes particularly

predisposescowstothedisorder[6];infact,theincidenceofmetritisincowswithretention

has been reported to vary from 37 to 90% [5].

To our knowledge, similar studies do not exist in ewes. Retention of fetal membranes in

ewes, with the small incidence risk of 1.25% [7], has not been studied extensively;

furthermore, no bacteriological investigations of cases of retention have been reported.

This study presents the results of a bacteriological investigation of the uterine content of

eweswithretentionoffetalmembranes.Ourobjectivesweretodescribetheprevalenceand

the identity of bacteria in the uterus of ewes with retention, to investigate their pattern of

susceptibility to antimicrobial agents, and to study the possible association of intrauterine

contamination with some clinical parameters of the disorder. We carried out the investiga-

tion as part of a larger work related to retention of fetal membranes in ewes, carried out in

28 ̄ocks in Southern Greec



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المزيد من كتب الطب في مكتبة كتب الطب , المزيد من كتب صيدلة في مكتبة كتب صيدلة , المزيد من الطب البشرى العام في مكتبة الطب البشرى العام , المزيد من كتب طب بيطرى في مكتبة كتب طب بيطرى , المزيد من كتب طب اسنان في مكتبة كتب طب اسنان , المزيد من كتب تمريض في مكتبة كتب تمريض , المزيد من الطب التكميلي - الطب البديل في مكتبة الطب التكميلي - الطب البديل , المزيد من كتب علاج طبيعى في مكتبة كتب علاج طبيعى
عرض كل كتب الطب ..
اقرأ المزيد في مكتبة كتب تقنية , اقرأ المزيد في مكتبة كتب إسلامية , اقرأ المزيد في مكتبة كتب الهندسة و التكنولوجيا , اقرأ المزيد في مكتبة كتب التنمية البشرية , اقرأ المزيد في مكتبة الكتب التعليمية , اقرأ المزيد في مكتبة القصص و الروايات و المجلات , اقرأ المزيد في مكتبة كتب التاريخ , اقرأ المزيد في مكتبة كتب الأطفال قصص و مجلات , اقرأ المزيد في مكتبة كتب تعلم اللغات , اقرأ المزيد في مكتبة الكتب و الموسوعات العامة , اقرأ المزيد في مكتبة كتب الطب , اقرأ المزيد في مكتبة كتب الأدب , اقرأ المزيد في مكتبة كتب الروايات الأجنبية والعالمية , اقرأ المزيد في مكتبة كتب علوم سياسية و قانونية , اقرأ المزيد في مكتبة كتب اللياقة البدنية والصحة العامة , اقرأ المزيد في مكتبة الكتب الغير مصنّفة , اقرأ المزيد في مكتبة كتب الطبخ و الديكور , اقرأ المزيد في مكتبة كتب المعاجم و اللغات , اقرأ المزيد في مكتبة كتب علوم عسكرية و قانون دولي
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