A seroepidemiologic study of bovine respiratory syncytial virus (BRSV) in Turkey     

I Burgu  A Toker  Y Akca  F Alkan 《DTW. Deutsche tier?rztliche Wochenschrift》1990,97(2):88-89

In this study, a survey of cattle for neutralizing antibodies to respiratory syncytial virus (RSV) in Turkey is presented. 490 serum samples were collected from several state farms and some private flocks in different regions of Turkey. The serologic examination was done by the microtiter serum-neutralization technique. In this report, a positive serum antibody titer at dilutions of 1:2 was demonstrated in 226 (46.12%) of the 490 sera tested.  相似文献   

Virological and serological studies on the role of PI-3 virus, BRSV, BVDV and BHV-1 on respiratory infections of cattle. I. The detection of etiological agents by direct immunofluorescence technique     

Alkan F  Ozkul A  Bilge-Dagalp S  Yesilbag K  Oguzoglu TC  Akça Y  Burgu I 《DTW. Deutsche tier?rztliche Wochenschrift》2000,107(5):193-195

Nasal cells extracted from nasal swabs obtained from 95 cattle with signs of respiratory disease, out of eleven different herds, were tested for BHV-1, PI-3 virus, BRSV and BVDV using direct immunofluorescence technique. Viral antigen positive samples were detected in seven out of eleven herds examined. Of the 95 individual diseased cattle, 19 were found positive for at least one viral antigen. It was found that especially BHV-1 and PI-3 virus are important causative agents in cattle respiratory disease, both or in combination with other pathogenic agents. Multiple infection in virologically positive herds were observed in six (9.8%) of 61 animals tested. The findings reveal that single or multiple infections of selected viruses may be present in an important range in cattle and that direct immunofluorescence technique as a rapid method, based on the detection of viral antigen in nasal swab samples, is useful to establish the viral aetiology of acute bovine respiratory disease caused by these viruses, particularly in the diagnosis of mixed viral infections.  相似文献   

Antioxidative role of selenium against the toxic effect of heavy metals (Cd<Superscript>+2</Superscript>, Cr<Superscript>+3</Superscript>) on liver of rainbow trout (<Emphasis Type="Italic">Oncorhynchus mykiss</Emphasis> Walbaum 1792)     

Talas ZS  Orun I  Ozdemir I  Erdogan K  Alkan A  Yilmaz I 《Fish physiology and biochemistry》2008,34(3):217-222

The main purpose of this study is to discuss the effect of Cd⁺², Cr⁺³ and Se metals on biochemical parameters in liver tissue of Oncorhynchus mykiss. The rainbow trout were exposed to heavy metal stress (Cd⁺², Cr⁺³) at 2 ppm dosage. The present study was undertaken to determine the protective effect of selenium treatment at the same dosage (2 ppm) on some biochemical parameters. The activity of catalase (CAT), glutathione peroxidase (GSH-Px), superoxide dismutase (SOD) and the changes in levels of malondialdehyde (MDA) from biochemical parameters were determined in liver tissue of the fish groups exposed to heavy metals, especially for the selenium-applied groups. Results of this study showed that the activities of CAT, GSH-Px and SOD in the tissues of fish exposed to the stress of Cd⁺² and Cr⁺³ were significantly lower than the control groups (P < 0.05). Meanwhile, the closer values to the control groups were obtained in selenium-added groups (Cr⁺³ + Se⁺⁴, Cd⁺² + Se⁺⁴). For the level of MDA, the last production of lipid peroxidation showed increases (P < 0.05) in the groups exposed to the metal stress, whereas significant decreases were obtained in selenium-applied groups. The result of the statistical evaluation showed that the negative effects occurring in the biochemical parameters of the applied groups exposed to the toxicity of heavy metal were significantly eliminated (P < 0.05) as a result of selenium treatment.  相似文献   

Versuche mit einigen neuen Mitteln zur Bekämpfung von Vorrats-schädlingen im Getreide,ausgeführt im Jahre 1953 in Istanbul und Umgebung     

B. Alkan 《Journal of pest science》1956,29(4):49-53

Zusammenfassung 1. Getreide-Krankheiten und -Schädlinge sind von großer Bedeutung für die Türkei. Sie verursachen alljährlich bedeutende Verluste.2. Es gibt verschiedene Einlagerungsmethoden von Getreide in der Türkei. In den letzten Jahren wurden moderne Speicher und Silos gebaut.3. Viele Arten von Schadinsekten verursachen in der Türkei im lagernden Getreide große Verluste.4. Der Vorratsschutz in der Türkei ist erst in den Anfängen.5. Der Getreide-Einkauf, die Einlagerung, die Belieferung der Mühlen mit Getreide und der Verkauf und Export von Getreide sind Aufgaben der Türkischen Getreide-Direktion.6. Im Jahre 1953 wurden in Istanbul einige neue Insektizide gegen verschiedene Getreideschädlinge erprobt.7. Brauchbar erwiesen sich folgende Präparate:A. Zur Entwesung leerer Speicher: Hygan Spezialpuder, verstärkt; Gammexane-Emulsion-Konzentrat; Fumite; Gammapoudre 100.B. Zur Entwesung von lagerndem Getreide: Hygan Spezialpuder; Hortexpuder; Versuchsmittel Hoe 2649.C. Begasungsmittel: Tetrakil; Phostoxin.  相似文献   

Acidification by gluconic acid of mango fruit tissue during colonization via stem end infection by Phomopsis mangiferae     

Maayan Davidzon  Noam Alkan  Ilana Kobiler  Dov Prusky 《Postharvest Biology and Technology》2010,55(2):71-77

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Effects of zinc fertilization and irrigation on grain yield and zinc concentration of various cereals grown in zinc‐deficient calcareous soils     

H. Ekiz  S. A. Bagci  A. S. Kiral  S. Eker  I. Gültekin  A. Alkan 《Journal of plant nutrition》2013,36(10):2245-2256

Effects of varied irrigation and zinc (Zn) fertilization (0, 7, 14, 21 kg Zn ha^‐1 as ZnSO₄7.H₂O) on grain yield and concentration and content of Zn were studied in two bread wheat (Triticum aestivum), two durum wheat (Triticum durum), two barley (Hordeum vulgare), two triticale (xTriticosecale Wittmark), one rye (Secale cereale), and one oat (Avena sativa) cultivars grown in a Zn‐deficient soil (DTPA‐extractable Zn: 0.09 mg kg^‐1) under rainfed and irrigated field conditions. Only minor or no yield reduction occurred in rye as a result of Zn deficiency. The highest reduction in plant growth and grain yield due to Zn deficiency was observed in durum wheats, followed by oat, barley, bread wheat and triticale. These decreases in yield due to Zn deficiency became more pronounced under rainfed conditions. Although highly significant differences in grain yield were found between treatments with and without Zn, no significant difference was obtained between the Zn doses applied (7–21 kg ha^‐1), indicating that 7 kg Zn ha^‐1 would be sufficient to overcome Zn deficiency. Increasing doses of Zn application resulted in significant increases in concentration and content of Zn in shoot and grain. The sensitivity of various cereals to Zn deficiency was different and closely related to Zn content in the shoot but not to Zn amount per unit dry weight. Irrigation was effective in increasing both shoot Zn content and Zn efficiency of cultivars. The results demonstrate the existence of a large genotypic variation in Zn efficiency among and within cereals and suggest that plants become more sensitive to Zn deficiency under rainfed than irrigated conditions.  相似文献   

A modified surgical technique for repairing third-degree perineal lacerations in mares     

Kaşikçi G  Horoz H  Alkan S  Düzgün O  Aktaş M 《Acta veterinaria Hungarica》2005,53(2):257-264

A modified surgical technique has been developed for repairing third-degree perineal lacerations in mares. Complications of the currently used methods include rectovaginal fistula formation, urine pooling, complete dehiscence of the repair, constipation, tenesmus and difficulty of performance in the practice. The modified method is simpler and more practical. This method was performed on eight Thoroughbred mares with third-degree perineal lacerations after delivery. The rectovestibular septum was reconstructed by three lines of sutures in a transverse direction in relation to the longitudinal axis of the rectum. In one of the eight cases pneumorectum was observed after using the new method. The conception rate obtained after using the new surgical technique was 62.5%. Pregnant mares delivered normally without any new lacerations at the subsequent parturition. It can be concluded that this new surgical technique can be used successfully for repairing third-degree perineal lacerations in mares.  相似文献   

Mixed apocrine sweat gland tumor of the tail in a cow     

Gulbahar MY  Alkan I  Aslan L  Golen I 《Veterinary pathology》2002,39(2):281-285

A 4-year-old native-breed cow had a mass with wide areas of ulceration and hemorrhage at the base of the tail at the same level as the vulva. The tumor was 19 X 13 X 11 cm, appeared red-brown, and was firm to hard, with gritty areas apparent on cut surface. Histologically, the tumor mass was composed of multilayered epithelial cells forming glandular structures with occasional apical blebs and rare solidly packed cells in nests. The stroma included fibrous connective tissue, scattered or periglandular sheets of spindle-shaped cells resembling myoepithelium, several cartilaginous formations, and numerous irregular islands of mineralized osteoid, well-formed bone trabeculae lined by osteoblasts, and many osteoclast-like multinucleated giant cells among or near the neoplastic epithelium. Immunohistochemically, the neoplastic epithelium was positive for pan-cytokeratin (AE1/AE2) and cytokeratin 19 but was negative for cytokeratin 18. Spindle-shaped cells were stained with alpha smooth muscle actin (alphaSMA) and to a lesser extent vimentin antibodies. The cells of osteogenic lineage and spindle cells closely associated with the osteoid showed strong immunostaining for vimentin but not for alphaSMA. Immunostaining for neuron-specific enolase and S100 protein was not observed in any component of the tumor mass. These findings suggested that the origin of bone formation was undifferentiated mesenchymal cells with osteogenic potential.  相似文献   

A mild strain of broad bean mottle virus from faba bean (Vicia faba L.) in the Sudan     

L. Bos  M. A-M. Mahir  M. Fortass  K. M. Makkouk 《European journal of plant pathology / European Foundation for Plant Pathology》1992,98(4):253-256

A new strain of broad bean mottle virus, isolated from faba bean (Vicia faba L.) in the Sudan, is described. It differs considerably from known isolates by its nearly symptomless infection of faba bean in spite of high concentrations of the virus in infected plants. It does not differ from regular isolates in gel-diffusion serology, light and electron microscopy, host range and symptoms in major hosts other than faba bean. It may constitute a potential threat to other food legumes in the region.  相似文献   

Nutritional quality of amino acid in farmed,farm‐aggregated and wild Axillary seabream (Pagellus acarne) with implications to Human Health     

Alkan Oztekin  Murat Yigit  Bayram Kizilkaya  Nail Ucyol  Evren Tan  Sevdan Yilmaz  Musa Bulut  Adnan Ayaz  Sebahattin Ergun 《Aquaculture Research》2020,51(5):1844-1853

This study evaluated the nutritional quality of farmed and wild axillary seabream (Pagellus acarne R., 1827) focusing on amino acid profiles, with regards to possible interactions with wild fish aggregating around the cage facility. Total amino acids (∑AA), essential amino acids (∑EAA), non‐essential amino acids (∑NEAA) and neutral amino acids (∑NAA) in farmed fish were lower than those in the wild individuals (p > .05). Amino acid pattern in cage‐aggregated fish showed a slight decline from the wild populations, but still higher than the farmed fish. Based on the amino acid scores (AAS), lysine and leucine could be underlined as the ‘first limiting amino acids’, but all other AASs were over ‘1’, in accordance with reference amino acid contents of FAO/WHO (>1.00), showing that farmed axillary seabream provides high nutritional quality and can be considered as a favourable protein source. The ratios of ∑EAA/∑AA (44%–46%) and ∑EAA/∑NEAA (79%–86%) exceeded the minimum recommendation of 40% and >60% by FAO/WHO for all three groups. It can be concluded that axillary seabream either farmed, farm‐aggregated or distant wild fish presented high‐quality protein generating a healthy source for human food.  相似文献