Respiratory diseases of small ruminants.

Nicholas, Robin A.J.; Ayling, Roger D.

doi:10.1079/9780851990125.0169

Cited by 45 publications

(67 citation statements)

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“…M. canis is a canine mycoplasma, but it is also increasingly isolated from cattle pneumonia cases (5,18). interestingly, M. bovoculi, which is responsible mainly for keratoconjunctivitis (18,26), was found in nasal swabs in our study. M. canadense is not able to induce lung infection without other pathogens (25).…”

Section: Discussionmentioning

confidence: 49%

“…Similarly to the results obtained in different countries (5,12), in our study M. bovirhinis was the most often isolated mycoplasma. It is ubiquitous and known as a secondary pathogen in cases of calf pneumonia, and was most often detected among cattle with respiratory diseases (18). M. dispar and M. arginini were the next bacteria frequently encountered in our research.…”

Section: Discussionmentioning

confidence: 99%

“…Usually the disease is associated with other pathogenic microorganisms such as viruses and other bacteria (8,18). Other mycoplasmas including M. dispar, M. canis, M. arginini, and the related species U. diversum have been directly implicated in BRD (5,9,18). Moreover, other mycoplasma species such as M. alkalescens, M. canadense, and M. bovirhinis are involved in cattle respiratory infection (13,18,25).…”

Section: Introductionmentioning

confidence: 99%

“…It is well known that Mycoplasma bovis is one of the main pathogens involved in cattle pneumonia, especially in bovine respiratory disease complex (BRD). Usually the disease is associated with other pathogenic microorganisms such as viruses and other bacteria (8,18). Other mycoplasmas including M. dispar, M. canis, M. arginini, and the related species U. diversum have been directly implicated in BRD (5,9,18).…”

Section: Introductionmentioning

confidence: 99%

“…Other mycoplasmas including M. dispar, M. canis, M. arginini, and the related species U. diversum have been directly implicated in BRD (5,9,18). Moreover, other mycoplasma species such as M. alkalescens, M. canadense, and M. bovirhinis are involved in cattle respiratory infection (13,18,25). M. bovis causes significant economic losses in the cattle industry, due to low growth rate of the animals and increased costs of treatment (21).…”

Section: Introductionmentioning

confidence: 99%

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Prevalence of pathogens from Mollicutes class in cattle affected by respiratory diseases and molecular characteristics of Mycoplasma bovis field strains

Szacawa

Szymańska-Czerwińska

Niemczuk

et al. 2016

Journal of Veterinary Research

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Introduction: Mycoplasma bovis is one of the main pathogens involved in cattle pneumonia. Other mycoplasmas have also been directly implicated in respiratory diseases in cattle. The prevalence of different Mycoplasma spp. in cattle affected by respiratory diseases and molecular characteristics of M. bovis field strains were evaluated. Material and Methods: In total, 713 nasal swabs from 73 cattle herds were tested. The uvrC gene fragment was amplified by PCR and PCR products were sequenced. PCR/DGGE and RAPD were performed. Results: It was found that 39 (5.5%) samples were positive for M. bovis in the PCR and six field strains had point nucleotide mutations. Additionally, the phylogenetic analysis of 20 M. bovis field strains tested with RAPD showed two distinct groups of M. bovis strains sharing only 3.8% similarity. PCR/DGGE analysis demonstrated the presence of bacteria belonging to the Mollicutes class in 79.1% of DNA isolates. The isolates were identified as: Mycoplasma bovirhinis, M. dispar, M. bovis, M. canis, M. arginini, M. canadense, M. bovoculi, M. alkalescens, and Ureaplasma diversum. Conclusion: Different Mycoplasma spp. strains play a crucial role in inducing respiratory diseases in cattle.

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Section: Discussionmentioning

confidence: 49%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Prevalence of pathogens from Mollicutes class in cattle affected by respiratory diseases and molecular characteristics of Mycoplasma bovis field strains

Szacawa

Szymańska-Czerwińska

Niemczuk

et al. 2016

Journal of Veterinary Research

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Mycoplasma

Balish,

Chopra‐Dewasthaly,

Pereyre

et al. 2024

Bergey's Manual of Systematics of Archaea and Bacteria

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My.co.plas'ma. Gr. masc. n. mykês , mushroom or other fungus; Gr. neut. n. plasma , anything formed or molded, image, figure; N.L. neut. n. Mycoplasma , fungus form. Bacillota_I / Bacilli_A / Mycoplasmatales / Mycoplasmataceae / Mycoplasma Bacteria in the genus Mycoplasma are small (300–800 nm in diameter) pleomorphic cells devoid of a cell wall. Culturable species usually form very small (<1 mm) umbonate colonies on agar. Their use of the codon UGA to encode tryptophan is a distinctive characteristic of all species examined to date. As a consequence of their small (usually 0.5–1.5 Mb) genomes they have limited intermediary metabolism and are nutritionally fastidious, requiring exogenous carbohydrates or arginine, fatty acids, cholesterol or other sterols, peptides, cofactors, and free nucleic acids for axenic growth. In nature, all species are obligate commensals or parasites with varying degrees of specificity for a wide range of vertebrate hosts. The type species Mycoplasma mycoides subsp. mycoides and Mycoplasma capricolum subsp. capripneumoniae are highly virulent animal pathogens subject to strict international regulations, but the genus is perhaps better known for Mycoplasma pneumoniae , the agent of primary atypical “walking” pneumonia in humans. The relative biological simplicity of mycoplasmas confers significant advantages for current proteomics, metabolomics, synthetic genomics, and systems biology research. For example, the recent chemical synthesis and transplantation of intact chromosomes demonstrated that it is possible to enliven a mycoplasma fully capable of autonomous replication with an artificially constructed genome. DNA G + C content (mol%) : 23–40. Type species : Mycoplasma mycoides Freundt 1955 AL (basonym: Asterococcus mycoides Borrel et al. 1910.

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Seroprevalence of and risk factors for Mycoplasma mycoides subspecies capri infection in small ruminants in Northern Jordan

Momani

Abo‐Shehada

Nicholas³

2010

Trop Anim Health Prod

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During the period from January 2002 to December 2003, serum samples were collected from 104 small ruminant flocks consisting of 18 sheep flocks, 27 goat flocks, and 59 mixed flocks containing both sheep and goats in northern Jordan. Only female sheep and goats were sampled. At least five females aged over 2 years per flock per species were sampled and examined for Mycoplasma mycoides subspecies capri using the latex agglutination test. To increase the chances of detecting positive flocks, sick or older ewes were sampled. Specific information was obtained using a questionnaire to identify potential risk factors for M. mycoides subsp. capri seropositivity in small ruminants. The true flock-level seroprevalences of M. mycoides subsp. capri were 34%, 32%, and 38% in small ruminants (sheep and goats), sheep, and goats, respectively. Differences between flock-level seroprevalences in sheep and goats were not significant (p = 0.7). Multivariable logistic regression analysis of 21 production and health management practices showed four to be associated with M. mycoides subsp. capri seropositivity including flocks which were grazed and fed concentrate supplement (OR = 4.6), improper cleaning of milking utensils (OR = 4.7), buying new animals to replace culled ones (OR = 0.3), and treating against helminths when clinical signs of helminth infections appear (OR = 0.4).

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Respiratory diseases of small ruminants.

Abstract: The epidemiology, transmission, clinical signs, pathology, causative organisms, biochemistry, diagnosis, treatment and control, and other mycoplasma associated with respiratory diseases of sheep and goats are discussed.

Cited by 45 publications

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Prevalence of pathogens from Mollicutes class in cattle affected by respiratory diseases and molecular characteristics of Mycoplasma bovis field strains

Prevalence of pathogens from Mollicutes class in cattle affected by respiratory diseases and molecular characteristics of Mycoplasma bovis field strains

Mycoplasma

Seroprevalence of and risk factors for Mycoplasma mycoides subspecies capri infection in small ruminants in Northern Jordan

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