scholarly journals THE CURRENT STATUS OF INTENSIVE WHITE-LEG SHRIMP (Litopenaeus vannamei) FARMING IN THE SYSTEM OF EARTHERN AND TARPAULIN PONDS AT TRA VINH PROVINCE

2020 ◽  
Vol 1 (41) ◽  
pp. 104-111
Author(s):  
Tiep Van Nguyen ◽  
Toan Thanh Diep ◽  
Huong Kim Huynh
Keyword(s):  
Litopenaeus Vannamei ◽  
Stocking Density ◽  
Shrimp Farming ◽  
Current Status ◽  
Net Income ◽  
Advantages And Disadvantages ◽  
Pond System ◽  
Earthen Ponds

This study was conducted to evaluate the current status of the intensive white-leg shrimp farming in earthen system and tarpaulin pond system in Tra Vinh Province by interviewing 110 farmers in Trà Vinh from May to December of 2019. The results of the study showed that an average stocking density in earthen systemand tarpaulin pond system were at 195 and 87 inds/m2 and the number of crops for earthen and tarpaulin ponds are respectively from 1 - 2 crops and 2 - 3 crops per year. The harvested shrimp size and the productivity in tarpaulin ponds (35 inds /kg; 48 tons/ha/crop) were significantly higher than those in the in earthen ponds (58 inds /kg; 12 tons/ha/crop). The net income obtained from the tarpaulin ponds model (1.760 millionVND/ha/crop) was significantly higher than that in the earthen ponds (267 million VND/ha/crop). Food change ratio in tarpaulin ponds was higher than in earthen ponds. The advantages and disadvantages of white - leg shrimp farmers in two models are also mentioned in this report.

scholarly journals Growth and survival rate vannamei shrimp (Litopenaeus vannamei) in various doses of fertilizer and density

2018 ◽  
Vol 2 (2) ◽  
pp. 53 ◽  
Author(s):  
Abdul Rakhfid ◽  
Udin Mauga
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Litopenaeus Vannamei ◽  
Stocking Density ◽  
Shrimp Farming ◽  
Experimental Unit ◽  
Random Group ◽  
Factor B ◽  
Growth And Survival ◽  
Density Factor

Vannamei shrimp (Litopenaeus vannamei) is a commodity that is expected to not only increase options for farmers but also sustain the rise of shrimp farming business in Indonesia. One important factor in shrimp farming is the availability of feed. In addition to the availability of natural feed during cultivation, stocking density is also very influential in the survival rate and growth of shrimp vannamei. The research was conducted in September-December 2016 farms Bonea Village District of Lasalepa Muna with Test the different dosages with different stocking density. The study used a Random Group Factorial, which is based fertilization (Factor A) with three levels and stocking density (Factor B) as many as three levels, each with three replications so that all 27 units experimental unit. The results showed that the combination of factors dose of 0.7 g of urea + 0.9 g TSP and stocking density factor of 10 individuals per container provides prawn post larvae growth vannamei most excellent and a combination of factors Urea fertilizer dosage of 0.9 g TSP + 1.1 g and stocking density factor of 20 individuals per container provides a survival rate of post larvae vannamei most good. Water quality media for research in the range that is optimal for the growth and survival of post larvae vannamei.

scholarly journals TECHNICAL AND FINANCIAL ANALYSIS OF FROG CULTURE (Rana tigerina) AT TRA VINH PROVINCE

2020 ◽  
Vol 1 (41) ◽  
pp. 97-103
Author(s):  
Tu Cam Cao ◽  
Huong Kim Huynh ◽  
Kiem Van Nguyen
Keyword(s):  
Financial Analysis ◽  
Stocking Density ◽  
Current Status ◽  
Net Income ◽  
Surrounding Area ◽  
Alternative System ◽  
Farming Area ◽  
Rana Tigerina ◽  
Financial Aspect

This study was conducted through the direct interview of 90 households applying the alternative system of culturing frogs in Tra Vinh Province from 9/2020 to 3/2020. The study aimed to determine current status of frog farming. The collected data includes the technical and financial aspect of culturing frogs. The results showedthat there are two models of frog farming: culturing frogs in canvas (65.56% of households), and culturing frogs in cages (34.44% of households); Both models applied the same average farming area of 36.27 m2 with stocking density of 115 inds/m2. After 2.6 months of culturing, the average frog size was 257 g. The average frogyield produced 21,024 kg/1,000 m2/crop and the net income of 100 million VND/1,000 m2/crop was achieved. The result indicated that it is easy to raise frogs because the households can take advantage of the surrounding area of their houses for raising frogs and therefore the farmers’ could improve by this method.

scholarly journals Machine Learning Quantitation of Cardiovascular and Cerebrovascular Disease: A Systematic Review of Clinical Applications

Diagnostics ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 551
Author(s):  
Chris Boyd ◽  
Greg Brown ◽  
Timothy Kleinig ◽  
Joseph Dawson ◽  
Mark D. McDonnell ◽  
...  
Keyword(s):  
Machine Learning ◽  
Coronary Artery Disease ◽  
Coronary Artery ◽  
Model Comparison ◽  
Disease Risk ◽  
Imaging Modalities ◽  
Current Status ◽  
Advantages And Disadvantages ◽  
Body Regions ◽  
Artery Disease

Research into machine learning (ML) for clinical vascular analysis, such as those useful for stroke and coronary artery disease, varies greatly between imaging modalities and vascular regions. Limited accessibility to large diverse patient imaging datasets, as well as a lack of transparency in specific methods, are obstacles to further development. This paper reviews the current status of quantitative vascular ML, identifying advantages and disadvantages common to all imaging modalities. Literature from the past 8 years was systematically collected from MEDLINE® and Scopus database searches in January 2021. Papers satisfying all search criteria, including a minimum of 50 patients, were further analysed and extracted of relevant data, for a total of 47 publications. Current ML image segmentation, disease risk prediction, and pathology quantitation methods have shown sensitivities and specificities over 70%, compared to expert manual analysis or invasive quantitation. Despite this, inconsistencies in methodology and the reporting of results have prevented inter-model comparison, impeding the identification of approaches with the greatest potential. The clinical potential of this technology has been well demonstrated in Computed Tomography of coronary artery disease, but remains practically limited in other modalities and body regions, particularly due to a lack of routine invasive reference measurements and patient datasets.

scholarly journals Draft Genome Sequence of White Spot Syndrome Virus Isolated from Cultured Litopenaeus vannamei in Mexico

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Libia Zulema Rodriguez-Anaya ◽  
Jose Reyes Gonzalez-Galaviz ◽  
Ramón Casillas-Hernandez ◽  
Fernando Lares-Villa ◽  
Karel Estrada ◽  
...  
Keyword(s):  
Disease Prevention ◽  
Genome Sequence ◽  
Litopenaeus Vannamei ◽  
White Spot Syndrome Virus ◽  
Draft Genome ◽  
Epidemiological Studies ◽  
Shrimp Farming ◽  
White Spot ◽  
Molecular Diagnostic ◽  
White Spot Syndrome

The first genome sequence of a Mexican white spot syndrome virus is presented here. White spot syndrome is a shrimp pandemic virus that has devastated production in Mexico for more than 10 years. The availability of this genome will greatly aid epidemiological studies worldwide, contributing to the molecular diagnostic and disease prevention in shrimp farming.

MicroRNA annotation in plants: current status and challenges

2021 ◽  
Author(s):  
Yongxin Zhao ◽  
Zheng Kuang ◽  
Ying Wang ◽  
Lei Li ◽  
Xiaozeng Yang
Keyword(s):  
Small Rna ◽  
Signal To Noise Ratio ◽  
Current Status ◽  
Mirna Biogenesis ◽  
Plant Mirnas ◽  
Signal To Noise ◽  
Advantages And Disadvantages ◽  
Plant Mirna ◽  
History Of ◽  
Mirna Biogenesis Pathway

Abstract Last two decades, the studies on microRNAs (miRNAs) and the numbers of annotated miRNAs in plants and animals have surged. Herein, we reviewed the current progress and challenges of miRNA annotation in plants. Via the comparison of plant and animal miRNAs, we pinpointed out the difficulties on plant miRNA annotation and proposed potential solutions. In terms of recalling the history of methods and criteria in plant miRNA annotation, we detailed how the major progresses made and evolved. By collecting and categorizing bioinformatics tools for plant miRNA annotation, we surveyed their advantages and disadvantages, especially for ones with the principle of mimicking the miRNA biogenesis pathway by parsing deeply sequenced small RNA (sRNA) libraries. In addition, we summarized all available databases hosting plant miRNAs, and posted the potential optimization solutions such as how to increase the signal-to-noise ratio (SNR) in these databases. Finally, we discussed the challenges and perspectives of plant miRNA annotations, and indicated the possibilities offered by an all-in-one tool and platform according to the integration of artificial intelligence.

scholarly journals Community Empowerment to Increase Litopenaeus vannamei Productivity Towards Semi-Intensive System by Potential Analysis and Self-Feed Production

2018 ◽  
Vol 4 (2) ◽  
pp. 156
Author(s):  
Sulastri Arsad ◽  
Muhammad Musa ◽  
Evellin Dewi Lusiana ◽  
Mohammad Mahmudi ◽  
Nanik Retno Buwono ◽  
...  
Keyword(s):  
Swot Analysis ◽  
Stocking Density ◽  
Community Empowerment ◽  
External Factors ◽  
Shrimp Farming ◽  
Small Scale ◽  
Selling Price ◽  
Feed Production ◽  
Internal And External Factors ◽  
Intensive System

Vaname shrimp is one of the leading cultivations of fishery production commodities in Indonesia which has high selling price and market share, also relatively resistant with high stocking density. Cultivation activities of this commodity can be carried out through three systems; namely traditional, semi-intensive, and intensive system. One group of cultivators who develop shrimp farming business is Mina Nusantara group in Lamongan District, where the cultivation system is still performed traditionally. The shrimp size was not uniform, and the survival rate was low once it harvested. Moreover, community empowerment was applied to increase vaname productivity towards semi-intensive system by culture potential analyses using SWOT and self-feed production training. Survey and experimental approach were used during the activities. The activities included survey and discussion with shrimp local farmer (Mina Nusantara), identified internal and external factors of culture by using SWOT analysis, carried out self-made artificial feed training, and program evaluation at the end. The activity resulted an increasing of farmer understanding of various culture system and they can produce the pellet in small scale by themselves. Based on SWOT analysis, the culture is potential to develop sustainably by regarding both internal and external factors.

scholarly journals Hybrid Rice Research: Current Status and Prospects

2020 ◽  
Author(s):  
Diptibala Rout ◽  
Debarchana Jena ◽  
Vineeta Singh ◽  
Manish Kumar ◽  
Pandurang Arsode ◽  
...  
Keyword(s):  
Hybrid Rice ◽  
Hybrid Vigor ◽  
Current Status ◽  
Genetic Enhancement ◽  
Hybrid Seed Production ◽  
Net Income ◽  
Seed Industry ◽  
Rice Area ◽  
Job Opportunity ◽  
Genomic Regions

Heterosis is a solitary means of exploiting hybrid vigor in crop plants. Given its yield advantage and economic importance, several hybrids in rice have been commercialized in more than 40 countries, which has created a huge seed industry worldwide. India has made commendable progress and commercialized 117 three-line indica hybrids for different ecology and duration (115–150 days), which accounted for 6.8% of total rice area in the country. Besides, several indigenous CMS lines developed in diversified genetic and cytoplasmic backgrounds are being utilized in hybrid rice breeding. NRRI, which has been pioneering to start with the technology, has developed three popular rice hybrids, viz., Ajay, Rajalaxmi, and CR Dhan 701 for irrigated-shallow lowland ecosystem. Biotechnological intervention has supplemented immensely in excavating desirable genomic regions and their deployment for further genetic enhancement and sustainability in rice hybrids. Besides, hybrid seed production creates additional job opportunity (100–105 more-man days) and comparatively more net income (70% more than production cost) than HYVs. Hence, this technology has great scope for further enhancement in per se rice productivity and livelihood of the nation.

Current Problems Analysis and Solving Approaches for Chinese Undergraduate Practice Innovative Talents Training

2011 ◽  
Vol 121-126 ◽  
pp. 1972-1976
Author(s):  
Jian Li Dong ◽  
Wen Bin Hu ◽  
Ming Liang Hou
Keyword(s):  
Education System ◽  
Undergraduate Education ◽  
Teaching Experience ◽  
Development Strategies ◽  
Current Status ◽  
Training Process ◽  
Education Development ◽  
Advantages And Disadvantages ◽  
Practical Teaching

According to the current status of Chinese undergraduate education development and practical innovative talent training, the advantages and disadvantages of undergraduate Innovative talents training modes and exam-oriented education system in China’s colleges are analyzed and represented. And then, the problems faced and solved in the practical innovative talents training process are also discussed. Finally, the paper proposes some solving approaches and development strategies for training and improving Chinese undergraduate practical innovative abilities. These approaches and strategies are extracted from practical teaching experience and have important reference role for the undergraduate education.

scholarly journals Nonalcoholic Fatty Liver Disease: An Update on the Diagnosis

2019 ◽  
Vol 19 (3) ◽  
pp. 187-198 ◽  
Author(s):  
Jia-Zhen Zhang ◽  
Jing-Jing Cai ◽  
Yao Yu ◽  
Zhi-Gang She ◽  
Hongliang Li
Keyword(s):  
Liver Disease ◽  
Liver Biopsy ◽  
Fatty Liver ◽  
Nonalcoholic Fatty Liver Disease ◽  
Fatty Liver Disease ◽  
Current Status ◽  
Imaging Biomarkers ◽  
Nonalcoholic Fatty Liver ◽  
Advantages And Disadvantages ◽  
Diagnostic Approaches

Nonalcoholic fatty liver disease (NAFLD) is a common liver disease and a major cause of related complications such as cirrhosis and hepatocellular carcinoma (HCC). NAFLD progresses through the stages of simple steatosis, nonalcoholic steatohepatitis (NASH), fibrosis, cirrhosis, and HCC. However, NAFLD usually cannot be diagnosed in a timely manner, which is largely attributed to the asymptomatic features of NAFLD patients and the lack of an effective and accurate noninvasive screening approach. Although liver biopsy has been recognized as a gold standard for diagnosing NAFLD, this approach is not suitable for screening and monitoring NAFLD because of its high cost and invasiveness. Several noninvasive screening and diagnostic systemic assessments have been developed in recent years for NAFLD evaluation. Here we summarize the current status and methods for NAFLD diagnosis, including both noninvasive (imaging, biomarkers) and invasive (liver biopsy) assessments. We further discuss the advantages and disadvantages of these developed diagnostic approaches for NAFLD.

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