Impact of sawdust and wood shavings in bedding on pig tuberculous lesions in lymph nodes, and IS1245 RFLP analysis of Mycobacterium avium subsp. hominissuis of serotypes 6 and 8 isolated from pigs and environment

Mátlová, L.; Dvorská, L.; Palecek, K.; Maurenc, L.; Bartoš, Milan; Pavlík, I.

doi:10.1016/j.vetmic.2004.06.003

Cited by 76 publications

(63 citation statements)

References 27 publications

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“…Earlier investigations (Cvetnić et al, 1998) also detected sawdust as the source of M. avium serotype 8 in farms with a high percentage of reactors. Several studies have confirmed the contamination of sawdust or straw with mycobacteria of the M. avium complex (Reznikov et al, 1971;Szabó et al, 1975b;Saitanu and Holmgaard, 1977;Saxegaard, 1981;Matlova et al, , 2004. In addition to its epidemiological importance, swine tuberculosis causes substantial economic losses.…”

Section: Discussionmentioning

confidence: 91%

“…The disease has been described in several other European countries including Hungary (Szabó et al, 1975a(Szabó et al, , 1975b, Poland (Zorawski et al, 1983), Germany (Dalchow, 1988), Slovenia (Košorok, 1990;Pate et al, 2004), the Netherlands (Komijn et al, 1999), Switzerland (Offermann et al, 1999) and the Czech Republic (Pavlik et al, , 2005Matlova et al, 2003Matlova et al, , 2004, and also in Brazil (Balian et al, 1997). As far as virulence for birds is concerned, the M. avium complex is divided into three different groups.…”

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confidence: 97%

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Mycobacterial infection of pigs in Croatia

Cvetnić

Špičić

Benić

et al. 2007

Acta Veterinaria Hungarica

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During a five-year period (2000 to 2004) 74,342 pigs were tested by the intradermal tuberculin test in Croatia. Of them, 248 (0.33%) pigs were positive and 91 (0.12%) were found to be suspicious in 7 out of the 13 farms included in the study. Gross pathological changes characteristic of tuberculosis were observed in tuberculin-positive and/or suspicious swine. Mycobacterium was isolated from the lymph nodes of 183 out of 234 swine (78.2%). For better epidemiological understanding, isolates were typed by conventional methods, PCR and hybridisation. The results show that most of the isolates belonged to the Mycobacterium avium complex (175 isolates, 95.7%). Other isolates belonged to M. fortuitum (6 isolates, 3.3%), M. chelonae (1 isolate, 0.5%), and M. peregrinum (1 isolate, 0.5%). Isolated strains of the M. avium complex were identified as M. a. avium (37 isolates, 21.1%) and M. a. hominissuis (138 isolates, 78.9%).

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Section: Discussionmentioning

confidence: 91%

mentioning

confidence: 97%

Mycobacterial infection of pigs in Croatia

Cvetnić

Špičić

Benić

et al. 2007

Acta Veterinaria Hungarica

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“…Contaminated bedding, particularly straw, sawdust, wood shavings, paper cut to pieces and other materials made of wood may be significant CPM sources for pigs (Kazda, 2000;Pavlik et al, 2003;Matlova et al, 2004b;Trckova et al, 2004). Another significant source of CPM may be contaminated feed and water (Dalchow, 1988;Pavlik et al, 2003;Matlova et al, 2003;Trckova et al, 2006a,b), peat and kaolin fed as supplements Trckova et al, 2004Trckova et al, , 2005Trckova et al, , 2006a and soil in pens (Horvathova et al, 1997;Matlova et al, 2003).…”

mentioning

confidence: 99%

Isolation of conditionally pathogenic mycobacteria from the environment of one pig farm and the effectiveness of preventive measures between 1997 and 2003

Pavlík¹,

Mátlová²,

Gilar³

et al. 2007

Vet. Med. - Czech

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392Tuberculosis in pigs causes high economic losses farmers from all over the world. The most consequential causative agents of tuberculosis in pigs at present are members of Mycobacterium tuberculosis (MTC) and M. avium (MAC) complexes. The losses are above all caused by restriction of animal transport from infected farms (with the exception of slaughterhouses), culling of animals positive during the tuberculin testing and the price of meat and organs from slaughtered infected animals (Alfredsen and Skjerve 1993;Dey and Parham, 1993;Morita et al., 1994;Balian et. al., 1997;Cvetnic et al., 1998; Positive skin responses were found in animals with antibodies against MAH (18; 23.7%), MAA (3; 4.0%) and MI (9; 11.8%) antigens. By serological examination of 17 sows with repeated dubious responses for tuberculin skin testing with avian tuberculin, no antibodies against MAA were detected; MAH antibodies and MI antibodies were found in eight and two animals, respectively. By post mortem examination of lymph nodes (ln) and organ samples from all 76 animals with responses to avian tuberculin, no tuberculous/tuberculoid lesions were detected. By culture examination of ln and organs from 13 animals, conditionally pathogenic mycobacteria (CPM) were isolated from only one animal (breeding boar): from mesenteric, pulmonary, hepatic ln and from spleen tissue samples. These isolates were identified as MAH and CPM by the PCR method and biochemically. By investigation of the external environment (205 samples), 33 (16.3%) CPM isolates were obtained: 13 MAH, eight M. fortuitum, one M. nonchromogenicum, one M. abscessus, one M. scrofulaceum and nine unidentified isolates, which were non-MAC according to the PCR examination. Non-specific responses obtained in the intravital tests (skin and serological tests) caused by CPM present in the environment substantially complicated diagnosis of avian tuberculosis. Based on these findings, animal hygiene measures have been adopted since 2002; resulted in a decrease of environmental contamination with CPM and a reduction in the number of animals giving positive responses to avian tuberculin.

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“…Therefore, we suppose that M. a. avium with this profile is common in the environment and accordingly, the mare has probably been infected through contact with infected animals or birds (Pavlik et al, 2000;Dvorska et al, 2007). There is a risk represented by a contaminated stable environment ; sawdust or shavings used for bedding can also not be excluded (Matlova et al 2004). However, in this case there was no anamnestic data available that could confirm or reject this hypothesis.…”

Section: Discussionmentioning

confidence: 99%

“…M. avium subsp. hominissuis (M. a. hominissuis) of IS901-/IS1245+ genotype and serotypes 4-6, 8-11 and 21 causes infection mainly in pigs (Matlova et al, 2004;Pate et al, 2004;Pavlik et al, 2005). It is commonly isolated from the environment and from immunosupressed patients Matlova et al, 2003;Reed et al, 2006).…”

mentioning

confidence: 99%

Lung tuberculosis in a horse caused by Mycobacterium avium subsp. avium of serotype 2: a case report

Pavlík¹,

Jahn²,

Morávková³

et al. 2008

Vet. Med. - Czech

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ABSTRACT:Interstitial pneumonia (2/3 of the lungs were affected) and diffusely enlarged bronchial and mediastinal lymph nodes were diagnosed by gross examination of a dead 16-year-old mare. Based on histopathological examination and the detection of acid-fast rods after staining by the Ziehl-Neelsen technique, tuberculosis was suspected. Mycobacterium avium subsp. avium of serotype 2 and IS901+/IS1245+ genotype was isolated from the pulmonary lymphnode after five-week incubation at 37°C. Due to the fact that horses have a naturally high resistance to mycobacterial infections, the high age of the mare most likely contributed to the development of the disease.

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Impact of sawdust and wood shavings in bedding on pig tuberculous lesions in lymph nodes, and IS1245 RFLP analysis of Mycobacterium avium subsp. hominissuis of serotypes 6 and 8 isolated from pigs and environment

Cited by 76 publications

References 27 publications

Mycobacterial infection of pigs in Croatia

Mycobacterial infection of pigs in Croatia

Isolation of conditionally pathogenic mycobacteria from the environment of one pig farm and the effectiveness of preventive measures between 1997 and 2003

Lung tuberculosis in a horse caused by Mycobacterium avium subsp. avium of serotype 2: a case report

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