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The effect of experimentally induced subclinical mastitis on the milk yield of dairy ewes

Saratsis, P.; Alexopoulos, C.; Tzora, A.; Fthenakis, G. C. (1999)

In each of the two experiments, subclinical mastitis was induced by inoculating both mammary glands of Karagouniko and of Chios-cross ewes with a Staphylococcus epidermidis. After inoculation, the somatic cell counts of ...

Effects of chlortetracycline administration on the health status and performance of sows: Results of a field trial

Sbiraki, A. P.; Saoulidis, K.; Kyriakis, S. C.; Saratsis, P.; Alexopoulos, C.; Fthenakis, G. C. (2003)

Objectives: To investigate the effects of in-feed chlortetracycline (CTC) during lactation on health status and reproductive performance of gilts or sows in a herd with a history of porcine reproductive and respiratory ...

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 ...

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 ...

A matched case-control study of factors associated with retention of fetal membranes in dairy ewes in Southern Greece

Leontides, L.; Fthenakis, G. C.; Amiridis, G. S.; Saratsis, P. (2000)

We defined retention of fetal membranes (RFM) in dairy ewes as failure to expel the placenta within 6 h after lambing the last lamb and designed a matched case-control study to identify factors that affect the risk of ...

Incidence risk and clinical features of retention of foetal membranes in ewes in 28 flocks in southern Greece

Fthenakis, G. C.; Leontides, L. S.; Amiridis, G. S.; Saratsis, P. (2000)

In a field investigation of 28 flocks in southern Greece, 7660 lambings were monitored. Retention of foetal membranes (defined as failure to expel the foetal membranes within 6 h of lambing the last lamb) was recorded in ...

Clinical and epidemiological findings during ram examination in 47 flocks in southern Greece

Fthenakis, G. C.; Karagiannidis, A.; Alexopoulos, C.; Brozos, C.; Saratsis, P.; Kyriakis, S. (2001)

In a field investigation of 47 Rocks in south Greece, a clinical examination for fertility evaluation was done on 293 rams. In each ram, a general-health examination, examination of the genital organs and libido evaluation ...

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 ...

Naturally occurring subclinical ovine mastitis associated with Listeria monocytogenes

Fthenakis, G. C.; Saratsis, P.; Tzora, A.; Linde, K. (1998)

Mammary infection with and faecal excretion of Listeria monocytogenes and somatic cell counts in milk were monitored in 98 ewes in a population of 335 in two flocks. From these 98 ewes, three samples were obtained throughout ...

Incidence risk and aetiology of mammary abnormalities in dry ewes in 10 flocks in Southern Greece

Saratsis, P.; Leontides, L.; Tzora, A.; Alexopoulos, C.; Fthenakis, G. C. (1998)

In a field investigation of 10 flocks in Southern Greece, 3367 dairy ewes were examined twice, in order to estimate the incidence risk and the aetiology of mammary abnormalities during the dry-period. Abnormal secretion, ...