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Experimentally induced teat stenosis in dairy ewes: Clinical, pathological and ultrasonographic features
(2004)
A strain of Staphylococcus chromogenes was introduced into the teat cistern of five ewes, teat inflammation and stenosis being the primary consequences. Initially, the inoculated teats were swollen and warm; later, a hard ...
Teat lesions predispose to invasion of the ovine mammary gland by Mannheimia haemolytica
(2007)
Teat lesions, produced in ewes by an experimental chapping procedure, were found to facilitate experimental infection with Mannheimia haemolytica, as assessed by observations on infection of the teat skin, teat duct and ...
Subclinical mastitis changes the patterns of maternal-offspring behaviour in dairy sheep
(2008)
Subclinical mastitis was induced by inoculating one mammary gland in dairy ewes (n = 8) with a Staphylococcus simulans isolate; control ewes (n = 4) were included. The milk yield of inoculated glands decreased (P < 0.001), ...
The effects of inoculation of Mannheimia haemolytica into the teat of lactating ewes
(2005)
The objectives of the work described in this paper were: (i) to study the outcome of challenging ewes with Mannheimia haemolytica, at different sites of their teats, (ii) to compare the effects of two different isolates ...
Teat disorders predispose ewes to clinical mastitis after challenge with Mannheimia haemolytica
(2006)
In order to study the effects of sheep teat disorders on the protection of the mammary gland, we used a Mannheimia haemolytica isolate, which did not cause clinical mastitis when deposited into intact teats. In the first ...
Experimentally induced orchitis associated with Arcanobacterium pyogenes: clinical, ultrasonographic, seminological and pathological features
(2004)
The objectives of this study were to describe the features of experimentally induced orchitis associated with Arcanobacterium pyogenes and confirm the pathogenicity of the organism for the ovine testicle. One testicle of ...
The induction of lymphoid follicle-like structures in the ovine teat duct following experimental infection with Mannheimia haemolytica
(2010)
The objectives of this study were to investigate the early stages of experimental infection of the ovine mammary gland with Mannheimia haemolytica and to identify the lymphocyte subsets accumulating at the teat duct. M. ...
Differences in susceptibility to Mannheimia haemolytica-associated mastitis between two breeds of dairy sheep
(2007)
We used a Mannheimia haemolytica isolate to study differences in susceptibility to experimental mastitis between two breeds of dairy sheep. The isolate was deposited into the teat duct of Karagouniko (K, n=8) or Frisarta ...
Effects of experimental challenge of ewes with Mannheimia haemolytica on subsequent milk composition
(2008)
The objective was to describe the physicochemical changes during the early phase of subclinical mastitis and to associate them with pathological findings. A Mannheimia haemolytica strain was deposited into one teat duct ...