Increasing vet and sheep flock interactions in dairy practice

Complex Infection Burkholderia cepacia of Dairy Sheep Associated with Outbreak of Subclinical Mastitis in a Flock

Outbreak of subclinical mastitis in a flock of dairy sheep associated with Burkholderia cepacia complex infection.

An outbreak of subclinical mastitis in a flock of 620 milking sheep was investigated. Microbiological and epidemiological analyses identified the causative agent as belonging to the Burkholderia cepacia complex (formerly Pseudomonas cepacia). Every ewe in the milking flock was individually tested for subclinical mastitis on two separate occasions, 6 weeks apart, by the California (rapid) mastit...

Effect of lameness on milk production in a flock of dairy sheep.

Difference in virulence between Staphylococcus aureus isolates causing gangrenous mastitis versus subclinical mastitis in a dairy sheep flock

Staphylococcus aureus mastitis in dairy sheep ranges from subclinical mastitis to lethal gangrenous mastitis. Neither the S. aureus virulence factors nor the host-factors or the epidemiological events contributing to the different outcomes are known. In a field study in a dairy sheep farm over 21 months, 16 natural isolates of S. aureus were collected from six subclinical mastitis cases, one le...

Haemonchosis in a sheep flock in North Finland

Background In May 2008 two sheep from a farm in Ylikiiminki (65°N 26°E) were autopsied at Finnish Food Safety Authority Evira in Oulu and diagnosed with a Haemonchus contortus infection. Haemonchus contortus has a few years ago been reported on the island of Hailuoto just outside Oulu, where it led to a lethal infection. Although this to sheep highly pathogenic nematode has been detected in Fin...