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Interactions between parasitic infections and reproductive efficiency in sheep

Fthenakis, G. C.; Mavrogianni, V. S.; Gallidis, E.; Papadopoulos, E. (2015)

This review article summarises the many reports in the literature, confirming that, in sheep, parasitic infections can adversely affect reproductive efficiency; examples, which refer to all parts of the reproductive cycle ...

Phylogenetic analysis of strains of Orf virus isolated from two outbreaks of the disease in sheep in Greece

Billinis, C.; Mavrogianni, V. S.; Spyrou, V.; Fthenakis, G. C. (2012)

Background: Although orf is endemic around the world, there are few descriptions of Orf virus strains and comparisons of these strains. We report the sequence and phylogenetic analysis of the partial B2L gene of Orf virus ...

Pregnancy toxaemia as predisposing factor for development of mastitis in sheep during the immediately post-partum period

Barbagianni, M. S.; Mavrogianni, V. S.; Katsafadou, A. I.; Spanos, S. A.; Tsioli, V.; Galatos, A. D.; Nakou, M.; Valasi, I.; Gouletsou, P. G.; Fthenakis, G. C. (2015)

Objective of the work was to evaluate the potential predisposing role of pregnancy toxaemia in development of mastitis in the immediately post-partum period. Ewes were allocated in subgroups A1 or A2 (with pregnancy toxaemia) ...

The bacterial flora in the teat duct of ewes can protect against and can cause mastitis

Fragkou, I. A.; Mavrogianni, V. S.; Cripps, P. J.; Gougoulis, D. A.; Fthenakis, G. C. (2007)

We studied the possible effects of bacterial populations within the teat duct, in the pathogenesis of ovine mastitis. In experiment I, 32 ewes were allocated into group A (ewes from which we isolated (+++ growth) ...

Principles of Mastitis Treatment in Sheep and Goats

Mavrogianni, V. S.; Menzies, P. I.; Fragkou, I. A.; Fthenakis, G. C. (2011)

This article indicates the principles for treatment of mastitis in ewes/does and explains the reasons why treatment may occasionally fail. It presents the principles for administration of antimicrobial agents at drying off ...

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 ...

Consequences of reduced vitamin A administration on mammary health of dairy ewes

Koutsoumpas, A. T.; Giadinis, N. D.; Petridou, E. J.; Konstantinou, E.; Brozos, C.; Lafi, S. Q.; Fthenakis, G. C.; Karatzias, H. (2013)

The study was carried out in Mytilene breed dairy ewes, which were allocated into two groups, 2 months before their first mating. All animals were given a diet based on dried alfalfa hay and concentrate compound feed with ...

The induction of lymphoid follicle-like structures in the ovine teat duct following experimental infection with Mannheimia haemolytica

Fragkou, I. A.; Dagleish, M. P.; Papaioannou, N.; Cripps, P. J.; Boscos, C. M.; Ververidis, H. N.; Orfanou, D. C.; Solomakos, N.; Finlayson, J.; Govaris, A.; Kyriazakis, I.; Fthenakis, G. C. (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. ...

Transmission of Mannheimia haemolytica from the tonsils of lambs to the teat of ewes during sucking

Fragkou, I. A.; Gougoulis, D. A.; Billinis, C.; Mavrogianni, V. S.; Bushnell, M. J.; Cripps, P. J.; Tzora, A.; Fthenakis, G. C. (2011)

Objective of the work was to study whether Mannheimia haemolytica may be transmitted from the mouth of the lambs into the teat of the dam during sucking. We compared bacterial populations within the teat duct and milk of ...

Case report: High prevalence rate of ovine mastitis, caused by coagulase-negative staphylococci and predisposed by increased gossypol consumption

Fthenakis, G. C.; Leontides, L.; Skoufos, J.; Taitzoglou, I. A.; Tzora, A. (2004)

A case of unusually high (>94%) prevalence of mastitis in a flock of dairy sheep, which was caused by coagulase-negative staphylococci (cnS) and associated with increased gossypol consumption, is presented. The animals ...