Ovine infectious keratoconjunctivitis: a microbiological study of clinically unaffected and affected sheep's eyes with special reference to Mycoplasma conjunctivae

Egwu, GO; Faull, WB; Bradbury, Janet M.; Clarkson, M. J.

doi:10.1136/vr.125.10.253

Cited by 50 publications

(40 citation statements)

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“…Inflammatory reaction by the phagocytic cells may have caused the keratitis. Egwu et al [21] reported isolation of S . aureus from ovine keratitis.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of Staphylococcal Ocular Infections of Food Producing Animals in Nsukka Southeast, Nigeria

Udegbunam

Anyanwu

2014

Veterinary Medicine International

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Staphylococcal ocular infections of food animals have been somewhat under diagnosed probably due to the ubiquitous nature of staphylococcal organisms. This study was undertaken to determine the occurrence of staphylococcal ocular infections of food producing animals in Nsukka Southeast, Nigeria, and to determine the antibiogram of the isolated staphylococci. A total of 5,635 food producing animals were externally examined for signs of clinical ocular conditions. Animals that showed clinical eye lesions were further examined using pen light to assess the entire globe and the pupillary reflex. Blindness was assessed using menace blink reflex, palpebral reflex and obstacle methods. Isolation and identification of staphylococcal isolates from ocular swabs were done by standard methods. Antibiogram of the isolates was determined by disc diffusion method. Sixty-three (1.1%) of the examined animals showed signs of ocular condition. Thirty-one (49.2%) of the cultured swabs yielded Staphylococcus aureus (S. aureus). Isolation rates from different animal species were caprine (60%), ovine (33.3%), bovine (12.5%), and porcine (0%). Resistance of the isolates was 100% to ampicillin/cloxacillin, 90% to tetracycline, 80% to streptomycin, 71% to chloramphenicol, 20% to erythromycin, 16% to gentamicin, and 0% to ciprofloxacin and norfloxacin. Twenty-five (81%) of the isolates were multi-drug resistant. This study has shown that antibiotic-resistant staphylococci are associated with a sizeable percentage of ocular infections of food producing animals and should be considered during diagnosis and treatment.

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“…Inflammatory reaction by the phagocytic cells may have caused the keratitis. Egwu et al [21] reported isolation of S . aureus from ovine keratitis.…”

Section: Discussionmentioning

confidence: 99%

Occurrence of Staphylococcal Ocular Infections of Food Producing Animals in Nsukka Southeast, Nigeria

Udegbunam

Anyanwu

2014

Veterinary Medicine International

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“…Antibiotic treatment may fail to eliminate M conjunctivae from the eye 3 and repeated gathering and handling of sheep for treatment encourages further spread. M conjunctivae can also be isolated from clinically normal eyes 4 . Ten gimmers had been purchased in January and were a possible source of infection.…”

Section: Small Ruminantsmentioning

confidence: 99%

Mortality due to pulpy kidney in beef calves and goats

2017

Veterinary Record

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AUGUST was an unsettled month with temperatures provisionally 0.1°C below the long-term average and rainfall 124% of average. Sunshine was below average in the south west but slightly above average in the east and far north. SRUC published the 38th edition of The Farm Management Handbook containing current crop and livestock data. Thanks to Scottish Rural Development Programme Farm Advisory Service funding, the online version is free to download from www.fas.scot/publications/farmmanagement-handbook-20172018 Cattle Nutritional and metabolic disorders Dumfries investigated the deaths of two Holstein heifers that had been imported from the Netherlands three weeks previously. Both animals had aborted at grass before death. On postmortem examination a large amount of internal fat was noted; the carcases were jaundiced, and the livers were yellow, friable and greasy, consistent with severe fatty liver. Tissue loated in formalin. Two areas of pulmonary

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“…Four swabs were submitted in total and Moraxella species were cultured in each case. This bacterium can be detected in clinically normal eyes but studies have shown that it is isolated more frequently from affected eyes (Egwu and others 1989). SAC C VS considered that the Moraxella species represented an incidental secondary infection and was not responsible for the relapses.…”

Section: Small Ruminantsmentioning

confidence: 99%

Fog fever‐type pneumonia in housed beef cattle

2014

Veterinary Record

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Acute interstitial pneumonia with histological changes resembling fog fever associated with feeding lush silage to housed beef cattle Salmonella Mbandaka isolated from a scouring dairy calf Tracheal obstruction in ewes dosed with gelatin-coated boluses Liver lobe torsion in an adult sow following bullying Staphylococcal pododermatitis in wild red grouse These are among matters discussed in the disease surveillance report for October and November 2013 from SAC Consulting: Veterinary Services (SAC C VS)

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Ovine infectious keratoconjunctivitis: a microbiological study of clinically unaffected and affected sheep's eyes with special reference to Mycoplasma conjunctivae

Cited by 50 publications

References 0 publications

Occurrence of Staphylococcal Ocular Infections of Food Producing Animals in Nsukka Southeast, Nigeria

Occurrence of Staphylococcal Ocular Infections of Food Producing Animals in Nsukka Southeast, Nigeria

Mortality due to pulpy kidney in beef calves and goats

Fog fever‐type pneumonia in housed beef cattle

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