Parcourir par auteur "Cripps, P. J."
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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 ... -
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) ... -
Description and validation of a novel technique to study the bacterial flora of the teat duct of ewes
Mavrogianni, V. S.; Cripps, P. J.; Fthenakis, G. C. (2006)We describe a new technique that may be used for studying the bacterial flora of the teat duct in live ewes, and we present evidence regarding its accuracy, safety and repeatability. A sterile, plastic, 20 G catheter is ... -
Differences in susceptibility to Mannheimia haemolytica-associated mastitis between two breeds of dairy sheep
Fragkou, I. A.; Skoufos, J.; Cripps, P. J.; Kyriazakis, I.; Papaioannou, N.; Boscos, C. M.; Tzora, A.; Fthenakis, G. C. (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
Fragkou, I. A.; Solomakos, N.; Dagleish, M. P.; Cripps, P. J.; Papaioannou, N.; Boscos, C. M.; Ververidis, H. N.; Billinis, C.; Orfanou, D. C.; Govaris, A.; Kyriazakis, I.; Fthenakis, G. C. (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 ... -
Effects of hand milking on the bacterial flora of mammary gland and teat duct of ewes
Mavrogianni, V. S.; Cripps, P. J.; Tzora, A.; Skoufos, I.; Fthenakis, G. C. (2006) -
Effects of hand-milking on bacterial flora of teat duct of ewes
Mavrogianni, V. S.; Cripps, P. J.; Tzora, A.; Skoufos, I.; Fthenakis, G. C. (2006) -
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 ... -
Experimentally induced orchitis associated with Arcanobacterium pyogenes: clinical, ultrasonographic, seminological and pathological features
Gouletsou, P. G.; Fthenakis, G. C.; Cripps, P. J.; Papaioannou, N.; Lainas, T.; Psalla, D.; Amiridis, G. S. (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
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. ... -
Isolation of Arcanobacterium pyogenes from the scrotal skin and the prepuce of healthy rams or from rams with testicular abnormalities
Gouletsou, P. G.; Fthenakis, G. C.; Tzora, A.; Cripps, P. J.; Saratsis, P. (2006)In a field study, samples were obtained from the scrotal skin and the preputial cavity of 48 rains and examined bacteriologically. Bacteria were isolated from all skin samples and from 90% of preputial cavity samples. The ... -
Myiasis in a dog shelter in Greece: Epidemiological and clinical features and therapeutic considerations
Orfanou, D. C.; Papadopoulos, E.; Cripps, P. J.; Athanasiou, L. V.; Fthenakis, G. C. (2011)The paper describes features of myiasis in a cohort of 163 dogs in an animal shelter, monitored over 3.5 years (4 fly activity seasons). Seven dogs (4 males, 3 females) were presented with myiasis; two dogs were presented ... -
Presence of sub-epithelial lymphoid tissues in the teat of ewe-lambs and adult ewes
Fragkou, I. A.; Mavrogianni, V. S.; Papaioannou, N.; Boscos, C.; Cripps, P. J.; Skoufos, J.; Fthenakis, G. C. (2007)In the first part of the study, 24 clinically healthy teats from non-lactating ewe-lambs were examined bacteriologically and histologically. No bacteria were isolated from any of these teats; lymphocytes were observed in ... -
Presence of subepithelial lymphoid nodules in the teat of ewes
Mavrogianni, V. S.; Cripps, P. J.; Brooks, H.; Taitzoglou, I. A.; Fthenakis, G. C. (2007)A total of 87 clinically healthy ovine teats were examined bacteriologically (by scraping the mucosa) and histologically. Teats examined were those of lactating mammary glands with no bacteria isolated (n = 23); of mammary ... -
Teat disorders predispose ewes to clinical mastitis after challenge with Mannheimia haemolytica
Mavrogianni, V. S.; Cripps, P. J.; Papaioannou, N.; Taitzoglou, I.; Fthenakis, G. C. (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 ... -
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 ... -
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 ... -
Ultrasonographic appearance of clinically healthy testicles and epididymides of rams
Gouletsou, P. G.; Amiridis, G. S.; Cripps, P. J.; Lainas, T.; Deligiannis, K.; Saratsis, P.; Fthenakis, G. C. (2003)The clinically healthy testicles and epididymides of 31 rams were imaged inside and outside the breeding period, by using a real time ultrasound scanner. A scanning technique based on multiple imaging planes from the caudal ...