62 research outputs found
Aquaculture Asia, Vol. 11, No. 2, pp.1-38. April-June 2006
No full textSelection of high-health postlarvae: a prerequisite for sustainability of the Indian shrimp industry, byS. Saurabh, V. Kumar, S. Karanth and G. Venkateshwarlu.Nucleotides: novel immunostimulants in aquaculture feed, byP. Kalaimani Arasi, N. Felix.Brood stock and all female scampi grow out ponds in south India, by P. Balamurugan, C. Balasundaram, P. Mariappan and S. Dharaneedharan.Genetically modified fish and its potential applications, byM. Karthik, D.B. Akolkar, V. Kumar, and S.D. Singh.Rainbow trout farming in hill terrace of Nuwakot, Nepal, byTek Bahadur Gurung, Sadhu Ram Basnet and Krishna Prasad Lamsal.Sugar industry by-products as plankton boosters and yield enhancers in carp culture systems, by S. Felix, T. Francis, K. Mohan Naidu, C. Senthil and P. Herald Robins.A note on the growth and production of Penaeus monodon in low saline culture systems of Kerala, by G. Prasad.Rural aquaculture: poor households raise prawns for export, by Peter Edwards.Marine fish marketing systems in coastal Bangladesh: potential for development, by Nesar Ahmed and Helen T. Sturrock.Network of Aquaculture Centres in Asia-PacificISSN 0859-600
Aquaculture Asia, Vol. 11, No. 2, pp.1-38. April-June 2006
No full textSelection of high-health postlarvae: a prerequisite for sustainability of the Indian shrimp industry, by
S. Saurabh, V. Kumar, S. Karanth and G. Venkateshwarlu.
Nucleotides: novel immunostimulants in aquaculture feed, by
P. Kalaimani Arasi, N. Felix.
Brood stock and all female scampi grow out ponds in south India, by P. Balamurugan, C. Balasundaram, P. Mariappan and S. Dharaneedharan.
Genetically modified fish and its potential applications, by
M. Karthik, D.B. Akolkar, V. Kumar, and S.D. Singh.
Rainbow trout farming in hill terrace of Nuwakot, Nepal, by
Tek Bahadur Gurung, Sadhu Ram Basnet and Krishna Prasad Lamsal.
Sugar industry by-products as plankton boosters and yield enhancers in carp culture systems, by S. Felix, T. Francis, K. Mohan Naidu, C. Senthil and P. Herald Robins.
A note on the growth and production of Penaeus monodon in low saline culture systems of Kerala, by G. Prasad.
Rural aquaculture: poor households raise prawns for export, by Peter Edwards.
Marine fish marketing systems in coastal Bangladesh: potential for development, by Nesar Ahmed and Helen T. Sturrock
Climate change and disaster impact reduction
No full textBased on papers presented at the 'UK - South Asia Young Scientists and Practitioners Seminar on Climate Change and Disaster Impact Reduction' held at Kathmandu, Nepal on 5-6 June, 2008
Comparative methods for association studies: a case study on metabolite variation in a Brassica rapa core collection
No full textBackground Association mapping is a statistical approach combining phenotypic traits and genetic diversity in natural populations with the goal of correlating the variation present at phenotypic and allelic levels. It is essential to separate the true effect of genetic variation from other confounding factors, such as adaptation to different uses and geographical locations. The rapid availability of large datasets makes it necessary to explore statistical methods that can be computationally less intensive and more flexible for data exploration. Methodology/Principal Findings A core collection of 168 Brassica rapa accessions of different morphotypes and origins was explored to find genetic association between markers and metabolites: tocopherols, carotenoids, chlorophylls and folate. A widely used linear model with modifications to account for population structure and kinship was followed for association mapping. In addition, a machine learning algorithm called Random Forest (RF) was used as a comparison. Comparison of results across methods resulted in the selection of a set of significant markers as promising candidates for further work. This set of markers associated to the metabolites can potentially be applied for the selection of genotypes with elevated levels of these metabolites. Conclusions/Significance The incorporation of the kinship correction into the association model did not reduce the number of significantly associated markers. However incorporation of the STRUCTURE correction (Q matrix) in the linear regression model greatly reduced the number of significantly associated markers. Additionally, our results demonstrate that RF is an interesting complementary method with added value in association studies in plants, which is illustrated by the overlap in markers identified using RF and a linear mixed model with correction for kinship and population structure. Several markers that were selected in RF and in the models with correction for kinship, but not for population structure, were also identified as QTLs in two bi-parental DH populations
Outcome of Endoscopic Variceal Band Ligation
No full textIntroduction: Bleeding from esophageal varices in cirrhosis is an emergent condition with high mortality. One of the preferred modality of treating esophageal varices is EVL. We aimed to find out the outcome of EVL in controlling acute esophageal variceal bleeding, prophylactic banding to prevent future bleeding and the number of sessions required for complete eradication of varices.
Methods: This descriptive observational study was carried out in Gastroenterology and Hepatology unit of Bir Hospital, NAMS from June 2016 to May 2017. Consecutive cases who presented in emergency room with acute variceal bleeding due to liver cirrhosis and cases of liver cirrhosis with large varices and red color signs on endoscopic examination were enrolled. They underwent EVL and subsequent re-endoscope at one month interval till the eradication of varices was achieved.
Results: Among 83 patients, 15 (18.1%) were of Child Pugh class A, 29 (34.9%) B and 39 (47%) were of C. In 20 (24.1%) cases varices could be eradicated in one session of EVL while 57 (68.7%) required two sessions and in 6 (7.2%) cases it took three sessions. Total average EVL session required for obliteration of esophageal varices was 1.84±0.53. There was only one (1.2%) of early re-bleeding post EVL.
Conclusions: EVL is an effective modality of treatment in controlling acute esophageal variceal bleeding, in preventing future variceal bleeding as well as in eradicating esophageal varices, with very few complications.
Keywords: acute variceal bleeding; cirrhosis; endoscopic variceal ligation; large varices; red color sign. [PubMed
Conservation status of Bengal Florican <i>Houbaropsis bengalensis bengalensis</i> (Gmelin, 1789) (Gruiformes: Otididae) in Koshi Tappu Wildlife Reserve and adjoining areas, eastern Nepal
No full textBengal Florican Houbaropsis bengalensis is one of the most critically threatened birds of the world. The species has restricted distribution within the Indian subcontinent extending southeast to parts of Cambodia and Vietnam. The population of the species is being monitored in Nepal since 1982. The most recent study on the species shows a precipitous decline in its population, even for a species mainly confined to protected areas. Koshi Tappu Wildlife Reserve and adjoining areas had been omitted in previous surveys mainly because the area was considered not to hold any significant number of the species. Opportunistic surveys in April and May 2011 indicated that there is a comeback of this species in Koshi Tappu Wildlife Reserve and the adjoining riverine grasslands. As many as 12 pairs were estimated. Further systematic surveys are recommended to find out the total population of the species
Genome-wide transcriptome analysis reveals molecular pathways involved in leafy head formation of Chinese cabbage (Brassica rapa)
No full textChinese cabbage plants go through seedling and rosette stages before forming their leafy head. Chinese cabbage plants resemble pak-choi plants at their seedling stage, but in their rosette stage the leaves of Chinese cabbage differentiate, as they increase in size with shorter petioles. In order to understand the molecular pathways that play a role in leafy head formation, transcript abundance of young emerging leaves was profiled during development of two Chinese cabbage genotypes and a single pak-choi genotype. The two Chinese cabbages differed in many aspects, among others earliness, leaf size and shape, leaf numbers, and leafy head shape. Genome-wide transcriptome analysis clearly separated the seedling stages of all three genotypes together with the later stages from pak-choi, from the later developmental stages of both Chinese cabbages (rosette, folding, and heading). Weighted correlation network analysis and hierarchical clustering using Euclidean distances resulted in gene clusters with transcript abundance patterns distinguishing the two Chinese cabbages from pak-choi. Three clusters included genes with transcript abundance affected by both genotype and developmental stage, whereas two clusters showed only genotype effects. This included a genotype by developmental stage cluster highly enriched with the MapMan category photosynthesis, with high expression during rosette and folding in Chinese cabbages and low expression in the heading inner leaves that are not exposed to light. The other clusters contained many genes in the MapMan categories Cell, showing again differences between pak-choi and both Chinese cabbages. We discuss how this relates to the differences in leaf blade growth between Chinese cabbage and pak-choi, especially at the rosette stage. Overall, comparison of the transcriptome between leaves of two very different Chinese cabbages with pak-choi during plant development allowed the identification of specific gene categories associated with leafy head formation.</p
Determinants of agriculture biodiversity in Western Terai landscape complex of Nepal
No full textThe study explored agriculture biodiversity around protected areas and identified factors affecting diversity of agriculture biodiversity in farming households. The study analyzed the data collected from household survey of about 907 farmers from Western-Terai Landscape Complex of Nepal. Intra-species and inter-species richness and evenness in agriculture landscape were estimated and compared across a spectrum of land-uses. The study identified different social, economic, technological and ecological factors affecting the richness of intra-species and inter-species diversity of agriculture biodiversity using generalized linear regression models. Technology index, information index, food security, animal holding, ethnicity, irrigation facility and land-use were found as major variables affecting agriculture. The results also indicated that buffer zones had higher diversity than other land-uses, indicating positive effects of protected-land on surrounding agriculture biodiversity. Results supported need of coordinated efforts to mainstream agriculture biodiversity conservation with landscape conservation plans and socio-economic developments of the region
- …
