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Wyszukujesz frazę "Amarakoon, A. A. D. Gayathri U." wg kryterium: Autor


Wyświetlanie 1-3 z 3
Tytuł:
A comparative analysis of Yellow Head Virus (YHD) diagnostic methods adopted in Sri Lanka to investigate the accuracy and specificity of the virus
Autorzy:
Amarakoon, A. A. D. Gayathri U.
Wijegoonawardane, P. K. M.
Powiązania:
https://bibliotekanauki.pl/articles/1182758.pdf
Data publikacji:
2017
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Aquaculture
OIE
Penaeus monodon
RNA
Yellow head virus
Opis:
Yellow head virus is a common viral pathogen which infects cultured Penaeus monodon world-wide, resulting in immature larvae and the growth retardation. Therefore, several detection methods are recommended by the Office des Epizootics (OIE) for use in Asia including Sri Lanka. This study was attempted to evaluate the RT-PCR diagnostic method is the appropriate and accurate YHV detection method which is recommended by the OIE comparing with histological identification and haemolymph Smear method. A total of 150 individuals of Penaeus monodon, post larve samples obtained from different shrimp hatcheries located in Northwestern province were screened for the presence of YHV and the results were comparatively analyzed with three different protocols, namely wet mount observation, histopathological observation and RT- PCR detection. Highest prevalence was recorded with wet mount observations (78%) and the lowest was recorded using histopathology (22%). Comparison of PCR tests generated consisted of positive samples 31/51 (2010), 38/65(2011) and 18/34 (2012) respectively. The results obtained with the IQ2000 commercial kit, were the most reliable and it indicated 56.6% average prevalence of YHV.
Źródło:
World Scientific News; 2017, 66; 181-192
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Molecular Phylogenetic relationships among the species of geckos in Adams’peak in Sri Lanka
Autorzy:
Amarakoon, A. A. D. Gayathri U.
Fernandopulle, Neil
Daulagala, S. W. P. L.
Powiązania:
https://bibliotekanauki.pl/articles/1191243.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Geckos species
Adams peak
lizard tails
RAG1gene
Opis:
In the current study we attempt to identify the relationship of among geckos species that are surviving in Adam’s peak Sri Lanka. A ten month survey was undertaken to document the diversity and abundance of geckos at the Adam’s peak in Sri Lanka. By using molecular data, the aim was to genetically characterize the species of geckos occurring along directions in Adam’s peak and phylogenetically relate these to other different parts of the world. A total of 79 individuals of gecko’s tails and eggs were captured in four different areas in Adam’s peak. We use 373 bp of RAG1 to detect the gene location and DNA sequence data to recover phylogenetic relationships and elucidate a biographic pattern and close relationship among geckos. According to the morphological identification suggested that gecko’s tail specimens belonged to several species and the molecular detection method confirmed the gene pool is differentiated among the population. Analysis of sequences of the RAG1 region from gecko species confirmed that the samples belonged to family Gekkonidae with the different gene population.
Źródło:
World Scientific News; 2016, 54; 180-190
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Detection and Prevalence of white spot syndrome disease (WSSV) in shrimp farms
Autorzy:
Amarakoon, A. A. D. Gayathri U.
Wijegoonawardane, P. K. M.
Wicraamasinghe, W. A. L.
Powiązania:
https://bibliotekanauki.pl/articles/1188101.pdf
Data publikacji:
2016
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
WSSV
DNA genome
OIE
Penaeid shrimps
Nested PCR
Opis:
White spot syndrome is a viral infection of Penaeus monodon shrimp. It is highly lethal, contagious and killing shrimps and doesn’t have a specific anti-viral treatment for this infection. This important infection affects on shrimp farms in Sri Lanka and leads to the loss of economy. Most of shrimp products are export oriented. Therefore this study aimed to determine the factors, detection and prevalence of WSSV in shrimp farms, Sri Lanka. The prevalence rate of WSSV among the collected samples (n = 100) is 58.05% (2011), 59.06% (2012) in Sri Lanka respectively. Therefore the infection and resistance of virus has increased among the shrimp population annually. Further studies need to be identified the WSSV aggressive viral strains and prevention strategies to evade from this sever infection in shrimp farming.
Źródło:
World Scientific News; 2016, 56; 239-251
2392-2192
Pojawia się w:
World Scientific News
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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