Πλοήγηση ανά Συγγραφέα "Taitzoglou, I. A."
Αποτελέσματα 1-18 από 18
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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 ... -
Dexamethasone reduces acrosin activity of ram spermatozoa
(2002)The aim of this study was to investigate the effect of dexamethasone on acrosin activity of spermatozoa in Chios rams during autumn (breeding season for sheep in Greece), in correlation with possible changes in blood ... -
Dietary administration of tannic acid lowers plasminogen activator activity in the liver of C3H hepatoma bearing male mice
(2000)Background: This study was undertaken to investigate if low-dose dietary administration of tannic acid exerts its chemopreventative activity on hepatocarcinogenesis in male C3H mice through changes of plasminogen activator ... -
Effect of plasmin on movement characteristics of ejaculated bull spermatozoa
(2004)Proteolytic enzymes appear to have an essential role in multiple phases of mammalian fertilization. Several observations suggest that the plasminogen activator/plasmin system might also play a role in mammalian fertilization. ... -
Effects of dietary vitamin A intake on acrosin- and plasminogen-activator activity of ram spermatozoa
(2005)Acrosin and plasminogen activators are proteolytic enzymes of ram spermatozoa that play an essential role in the induction of the acrosome reaction, as well as the binding of spermatozoa to the oocyte and their penetration ... -
Effects of lamb sucking on the bacterial flora of teat duct and mammary gland of ewes
(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 ... -
Experimentally induced teat stenosis in dairy ewes: Clinical, pathological and ultrasonographic features
(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 ... -
Gossypol-induced inhibition of plasminogen activator activity in human and ovine acrosomal extract
(1999)The effect of gossypol-a polycyclic compound isolated from cotton seeds-on the plasminogen activator activity of man and ram acrosomal extracts was explored in vitro. The action of gossypol on the plasminogen activator ... -
Histological Features in the Mammary Glands of Female Dogs throughout Lactation
(2010)> The objective of this study was to describe the histology of the mammary glands of female dogs throughout lactation. Twelve lactating female dogs were operated 4, 7, 10, 14, 21, 28, 35, 42, 56, 70 and 84 days post-partum; ... -
Induction of the acrosome reaction in bull spermatozoa with plasmin
(2003)Proteolytic enzymes appear to have an essential role in multiple phases of mammalian fertilization. Plasmin, the active enzyme of the plasminogen activation system that stimulates fibrinolysis and proteolysis has a less ... -
Inhibition of human and ovine acrosomal enzymes by tannic acid in vitro
(2001)The effect of tannic acid, a common flavonoid, on the acrosin and plasminogen activator activity and plasmin activity of human and ram spermatozoa was evaluated. Acrosin and plasminogen activator activity were determined ... -
Involvement of the plasminogen activation system in cow endometritis
(2004)The objectives of this study were to investigate the: (a) presence and activity of components of the "plasminogen activators/plasmin" system in dairy cows with or without endometritis; (b) variations in enzyme activity ... -
Patterns of maternal-offspring behaviour of dairy sheep and potential association with mammary health
(2007)Behaviour during lactation and its relationship with mammary health was investigated in 12 dairy ewes (six with single lambs and six with twins) for 42 d after lambing. Behavioural recordings were made. Samples of teat ... -
Persistent efficacy of long-acting moxidectin for control of trichostrongylid infections of sheep
(2009)The objective was to evaluate long-acting moxidectin (Cydectin (R) 2% LA for sheep) against trichostrongylids in sheep. We performed a blocked, parallel, controlled clinical trial. We included 45 ewe-lambs, allocated into ... -
Post-Partum Involution of the Canine Uterus - Gross Anatomical and Histological Features
(2009)We aimed to study the normal puerperium in the bitch. Ovariohysterectomy was performed in nine bitches, each at a different day after normal whelping; their genital tract was subject to gross anatomical examination, as ... -
Presence of subepithelial lymphoid nodules in the teat of ewes
(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 ... -
Simultaneous determination of retinoic acid, retinol, and retinyl palmitate in ram plasma by liquid chromatography
(2003)A liquid chromatographic method is described for the simultaneous determination of retinoic acid, retinol, and retinyl palmitate in. ram plasma. Samples of 0.2 mL are extracted with 2-propanol-dichloromethane, the extracts ... -
Subclinical mastitis changes the patterns of maternal-offspring behaviour in dairy sheep
(2008)Subclinical mastitis was induced by inoculating one mammary gland in dairy ewes (n = 8) with a Staphylococcus simulans isolate; control ewes (n = 4) were included. The milk yield of inoculated glands decreased (P < 0.001), ...