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Ultrasonographic findings in the ovine udder during lactogenesis in healthy ewes or ewes with pregnancy toxaemia

Barbagianni, M. S.; Gouletsou, P. G.; Valasi, I.; Petridis, I. G.; Giannenas, I.; Fthenakis, G. C. (2015)

Objective of the study was to record, by means of ultrasonographic examination, changes occurring during lactogenesis in the udder of healthy ewes and of ewes with pregnancy toxaemia. The work was carried out in 28 ewes, ...

Experimentally induced teat stenosis in dairy ewes: Clinical, pathological and ultrasonographic features

Mavrogianni, V. S.; Fthenakis, G. C.; Burriel, A. R.; Gouletsou, P.; Papaioannou, N.; Taitzoglou, I. A. (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

Fragkou, I. A.; Papaioannou, N.; Cripps, P. J.; Boscos, C. M.; Fthenakis, G. C. (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 ...

Trematode infections in pregnant ewes can predispose to mastitis during the subsequent lactation period

Mavrogianni, V. S.; Papadopoulos, E.; Spanos, S. A.; Mitsoura, A.; Ptochos, S.; Gougoulis, D. A.; Barbagianni, M. S.; Kyriazakis, I.; Fthenakis, G. C. (2014)

Objective was to investigate if trematode infections predispose ewes to mastitis and/or metritis. We used 80 trematode-infected ewes: primigravidae in group P-A and multigravidae in M-A remained untreated, primigravidae ...

Effects of drying-off procedure of ewes' udder in subsequent mammary infection and development of mastitis

Petridis, I. G.; Mavrogianni, V. S.; Fragkou, I. A.; Gougoulis, D. A.; Tzora, A.; Fotou, K.; Skoufos, I.; Amiridis, G. S.; Brozos, C.; Fthenakis, G. C. (2013)

Objective of the study was to evaluate effects of the procedure followed for udder drying-off (i.e., progressive or abrupt cessation of lactation) in subsequent mammary infection and development of mastitis. In ewes of ...

Administration of antibiotics to ewes at the beginning of the dry- period

Petridis, I. G.; Fthenakis, G. C. (2014)

The objective of the present paper is to review the significance of administration of antibiotics at the end of a lactation period/beginning of the dry-period in ewes. During the stage of active involution, there is an ...

Effects of lamb sucking on the bacterial flora of teat duct and mammary gland of ewes

Gougoulis, D. A.; Kyriazakis, I.; Tzora, A.; Taitzoglou, I. A.; Skoufos, J.; Fthenakis, G. C. (2008)

We aimed (i) to determine differences in bacterial flora of teat duct and mammary gland of ewes before and after suckling, (ii) to evaluate factors potentially affecting those. We collected samples of teat duct material ...

Ultrasonographic findings in the ovine udder during involution

Petridis, I. G.; Gouletsou, P. G.; Barbagianni, M. S.; Amiridis, G. S.; Brozos, C.; Valasi, I.; Fthenakis, G. C. (2014)

The objective of the study was to record, by means of ultrasonographic examination, changes occurring in the udder of ewes during involution and to compare differences between progressive or abrupt udder drying-off. In ...

The effects of inoculation of Mannheimia haemolytica into the teat of lactating ewes

Mavrogianni, V. S.; Fthenakis, G. C.; Brooks, H.; Papaioannou, N.; Cripps, P. J.; Taitzoglou, I.; Brellou, G.; Saratsis, P. (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 ...

Bacterial flora and risk of infection of the ovine teat duct and mammary gland throughout lactation

Mavrogianni, V. S.; Cripps, P. J.; Fthenakis, G. C. (2007)

We collected samples of teat duct material and mammary secretion from ewes in three farms (flock A, polyparous n = 7; flock B, polyparous n = 6, primiparous n = 4; flock C, polyparous n = 4): 14 samples immediately after ...