European corn borer (Ostrinia nubilalis Hbn., Lepidoptera: Crambidae): comparing the performance of a new bisexual lure with that of synthetic sex pheromone in five countries          下载免费PDF全文

Miklós Tóth  István Szarukán  Antal Nagy  Lorenzo Furlan  Isadora Benvegnù  Magda Rak Cizej  Tamás Ábri  Tamás Kéki  Szilvia Körösi  Attila Pogonyi  Teodora Toshova  Dimitar Velchev  Daniela Atanasova  Alican Kurtulus  Bora Mehmet Kaydan  Alessio Signori 《Pest management science》2017,73(12):2504-2508

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Use of Organic Materials as Growing Media for Honeydew Melon Seedlings in Organic Agriculture     

Van Tam Nguyen  Chong-Ho Wang 《Communications in Soil Science and Plant Analysis》2017,48(18):2137-2147

An experiment was conducted to determine the possibility of using organic materials for the honeydew melon seedling production. Honeydew melon was grown in nine media with different rates of spent mushroom substrate (SMS), vermicompost (VC), cattle manure compost (CaMC), and coconut fiber (CF). Element sulfur was also added to mixtures at a rate of 1.0 g kg^?1 substrate. The experiment was arranged in a randomized complete block design with three replications. The results determined that all media had desirable physical properties. At the same rates of SMS and VC, CF supported better growth of seedling than CaMC. Seedlings treated with CF had higher morphological growth parameters. It is suggested that CF should be used as an additive for media of SMS and VC. The study clearly indicated that the growing medium with 50% SMS, 30% VC, and 20% CF gave the best condition for honeydew melon seedlings.  相似文献   

Ligand-based computer-aided pesticide design. A review of applications of the CoMFA and CoMSIA methodologies     

Bordás B  Komíves T  Lopata A 《Pest management science》2003,59(4):393-400

An overview is given of the CoMFA (comparative molecular field analysis) and CoMSIA (comparative molecular similarity indices analysis) methodologies that are established ligand-based molecular design tools widely used by medicinal and pesticide chemists. In the absence of a three-dimensional structure of the target biopolymer, CoMFA and CoMSIA often provide a practical solution to an otherwise intractable problem of proper characterization of ligand-receptor interactions. These techniques are especially important in agrochemistry, where the number of known molecular structures of pesticide targets is limited. The use of CoMFA and CoMSIA in the agrochemical field for modelling the interactions of insecticides, fungicides, herbicides and herbicide safeners with their target binding sites is illustrated by using some selected published work. The CoMFA and CoMSIA models developed have been used successfully to map the properties of unknown receptors, construct hypotheses for ligand-receptor interactions, optimize lead structures, design novel active compounds, and predict biological activities. The application of CoMFA by the present authors for deriving a binding site hypothesis for dichloroacetamide-type herbicide safeners is described in somewhat more detail.  相似文献   

An epornitic of duck virus enteritis (duck plague) in California   总被引：1，自引：0，他引：1  

S B Snyder  J G Fox  L H Campbell  K F Tam  O A Soave 《Journal of the American Veterinary Medical Association》1973,163(6):647-652

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Suppression of radioiodide accumulation by the thyroids and oocytes of Japanese quail with perrhenate.     

K H Tam  S E Downie  G A Robinson 《British poultry science》1977,18(3):361-367

Japanese quail, 50% inhibition of the 3-h accumulation of 131I occurred with 2.0 micromol KReO4, 2.2 micromol KClO4 and 13 micromol KSCN for the growing oocytes, 1.7, 1.9 and 4.2 micromol for the thyroids of females and 0.20, 0.47 and 5.6 micromol for the thyroids of males. 2. KReO4 inhibition failed after 24 h in males and 36 h in females. 3. Maxima at 6 h in the 131I curves for the plasma, the livers and the testes of KReO4-treated birds were attributed to retention of 131I in the plasma.  相似文献   

The influence of T. evansi infection on the immuno-responsiveness of experimentally infected water buffaloes.     

W G Holland  L N My  T V Dung  N G Thanh  P T Tam  J Vercruysse  B M Goddeeris 《Veterinary parasitology》2001,102(3):225-234

In order to define the immuno-suppressive capacity of Trypanosoma evansi infections in buffaloes on the induction of immune responses against heterologous antigens, infected and non-infected buffaloes were vaccinated against Pasteurella multocida (haemorrhagic septicemia) and were simultaneously immunised with a control antigen, human serum albumin (HSA). Antibody responses against HSA were significantly reduced in T. evansi-infected animals, but no conclusive data were obtained on the antibody responses against P. multocida. Conversely, the local inflammatory response at the site of Pasteurella vaccination, as measured by increase in size, was significantly reduced in T. evansi-infected animals.These results indicate that the inductive capacity to mount humoral and cell-mediated immune responses against heterologous antigens is suppressed in T. evansi-infected animals. Consequently, T. evansi infection might interfere with the development of protective immunity upon heterologous vaccinations and could explain the poor protection of Pasteurella-vaccinated buffaloes in T. evansi-endemic areas of Vietnam.  相似文献   

A new, simple aerosol immunization technique against Newcastle disease     

G Tamási  T Veress  F Kovács  E D?m?t?r 《Acta veterinaria Hungarica》1988,36(3-4):185-193

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Oesophagogastric ulcer in swine and vitamin U. III. Reduction of economic losses by vitamin U     

J Tamás  M Hegedüs  J Bokori 《Acta veterinaria Hungarica》1986,34(1-2):81-92

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Detection and analysis of porcine circovirus type 1 in Hungarian wild boars: short communication     

Cságola A  Kiss I  Tuboly T 《Acta veterinaria Hungarica》2008,56(1):139-144

Porcine circovirus type 1 (PCV1) is considered to be a non-pathogenic virus detected in cell cultures, vaccines or products used for cell culture preparations, all of them of porcine origin. Serological evidence and genetic studies suggested that PCV1 was widespread in domestic pigs. The presence of PCV1 in wild boars in Germany was also described using serological methods. This paper reports the first detection of PCV1 in Hungarian wild boars. Samples were collected at slaughterhouses and processed for polymerase chain reactions. The complete genome of PCV1 detected in the samples was determined and compared with the available PCV1 sequences of the GenBank database. The genomes formed two distinct clusters with minimum differences, where the Hungarian wild boar PCV1 (WB-H8) grouped together with genomes originating from domestic swine from China and Australia and with a genome detected in a porcine pepsin product.  相似文献   

Serological evidence of continuing high Usutu virus (Flaviviridae) activity and establishment of herd immunity in wild birds in Austria   总被引：2，自引：0，他引：2  

Meister T  Lussy H  Bakonyi T  Sikutová S  Rudolf I  Vogl W  Winkler H  Frey H  Hubálek Z  Nowotny N  Weissenböck H 《Veterinary microbiology》2008,127(3-4):237-248

Usutu virus (USUV), family Flaviviridae, has been responsible for avian mortality in Austria from 2001 to 2006. The proportion of USUV-positive individuals among the investigated dead birds decreased dramatically after 2004. To test the hypothesis that establishment of herd immunity might be responsible, serological examinations of susceptible wild birds were performed. Blood samples of 442 wild birds of 55 species were collected in 4 consecutive years (2003--2006). In addition, 86 individuals from a birds of prey rehabilitation centre were bled before, at the peak, and after the 2005 USUV transmission season in order to identify titre dynamics and seroconversions. The haemagglutination inhibition test was used for screening and the plaque reduction neutralization test for confirmation. While in the years 2003 and 2004 the proportion of seropositive wild birds was <10%, the percentage of seroreactors raised to >50% in 2005 and 2006. At the birds of prey centre, almost three quarters of the owls and raptors exhibited antibodies before the 2005 transmission season; this percentage dropped to less than half at the peak of USUV transmission and raised again to almost two thirds after the transmission season. These data show a from year to year continuously increasing proportion of seropositive wild birds. The owl and raptor data indicate significant viral exposure in the previous season(s), but also a number of new infections during the current season, despite the presence of antibodies in some of these birds. Herd immunity is a possible explanation for the significant decrease in USUV-associated bird mortalities in Austria during the recent years.  相似文献