Browsing by Author "Fthenakis, G. C."
Now showing items 1-20 of 119
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Abortion in ewes associated with Erysipelothrix rhusiopathiae
(2006)We describe the features of an outbreak of ovine abortions caused by Erysipelothrix rhusiopathiae in a flock of sheep in Greece. Abortion occurred in 3.5% of ewes in the flock; the foetuses were well developed and had ... -
Administration of a long-acting antiparasitic to pre-pubertal ewe-lambs in Greece results in earlier reproductive activity and improved reproductive performance
(2011)We studied the reproductive effects of administration of a long-acting antiparasitic (moxidectin) given to pre-pubertal ewe-lambs in Greece at the beginning of the reproductive season. 45 animals, naturally infected with ... -
Administration of antibiotics to ewes at the beginning of the dry- period
(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 ... -
Administration of moxidectin for treatment of sarcoptic mange in a flock of sheep
(1999)The treatment of a large flock (1529 sheep) infested with Sarcoptes scabiei is reported. All sheep of the flock were treated twice, 12 days apart, with moxidectin 1% injectable solution, given subcutaneously at 0.2 mg ... -
Bacterial flora and risk of infection of the ovine teat duct and mammary gland throughout lactation
(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
(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) ... -
Bacterial live vaccines with graded level of attenuation achieved by antibiotic resistance mutations: transduction experiments on the functional unit of resistance, attenuation and further accompanying markers
(1998)At least 10% of spontaneous chromosomal antibiotic resistant mutants of bacteria express a strain-dependent graded reduction of virulence; this correlates linearly with a prolonged generation time. Occasionally, these ... -
Bacteriological and epidemiological findings during examination of the uterine content of ewes with retention of fetal membranes
(2002)We included 92 pairs of ewes with or without retention of fetal membranes in a cohort study of 25 flocks in Southern Greece. We obtained two uterine content samples under aseptic conditions, by introducing a swab into the ... -
Bluetongue Virus in wild ruminants in Europe: Concerns and facts, with a brief reference to bluetongue in cervids in Greece during the 2014 outbreak
(2015)Bluetongue is a constant threat to ruminants, affecting primarily the sheep industry. Bluetongue Virus, the causative agent, has a worldwide distribution and a large number of antigenically different serotypes (at least ... -
A case of bilateral auricular haematoma in a ewe-lamb with sarcoptic mange
(2013)A Lacaune ewe-lamb was referred with bilateral pinnal swelling and intense head-shaking. Soft, fluid-filled, painless swellings were present on the concave surface of both ear pinnae. Needle aspiration revealed sero-sanguineous ... -
Case report: High prevalence rate of ovine mastitis, caused by coagulase-negative staphylococci and predisposed by increased gossypol consumption
(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 ... -
Clinical and epidemiological findings during ram examination in 47 flocks in southern Greece
(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 ... -
Clinical characteristics of lameness and potential risk factors in intensive and semi-intensive dairy sheep flocks in Greece
(2013)Objectives of the study were to present descriptive epidemiological characteristics of lameness in intensively and semi-intensively reared flocks of Chios-breed dairy sheep in Greece, as well as to identify potential factors ... -
Clinical evaluation of reproductive ability of rams
(2010)Clinical evaluation of reproductive ability of rams is an integral part of sheep health management programs. The majority of problems adversely affecting the reproductive ability of rams can be easily detected with clinical ... -
Clinical, bacteriological, cytological and pathological features of teat disorders in ewes
(2007)We describe the features of 13 cases of teat disorders in ewes, as follows: lengthy teats (one case), papilloma infection (two), staphylococcal dermatitis (one), nodules and abscesses (two), teat bites (three), stenosis ... -
Clinical, ultrasonographic and pathological features following unilateral vasectomy in rams
(2008)The effects of vasectomy on testes and related structures of animal species and men are largely disputable. These possible effects were studied in the ram, an established experimental animal model used to investigate ... -
Comparison of fluorescence polarization assay, indirect ELISA and competitive ELISA methods for diagnosis of Brucella melitensis-infection in small ruminants
(2004)Three serological tests, the fluorescence-polarization assay (FPA), the indirect ELISA (iELISA) and the competitive ELISA (cELISA), were compared in detecting Brucella melitensis antibodies in 454 serum samples from sheep ... -
Consequences of reduced vitamin A administration on mammary health of dairy ewes
(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 ... -
Control of liver abscesses in lambs by using marbofloxacin
(2012)We describe cases of liver abscesses in a group of newborn lambs. Diagnosis was based on the combination of clinical signs with the findings of ultrasonographic examination of the abdomen: oval, hypoechoic structure with ... -
Description and validation of a novel technique to study the bacterial flora of the teat duct of ewes
(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 ...