scholarly journals The Possible Role of Microorganisms in Mosquito Mass Rearing

Insects ◽  
2021 ◽  
Vol 12 (7) ◽  
pp. 645
Author(s):  
Luca Chersoni ◽  
Alice Checcucci ◽  
Marco Malfacini ◽  
Arianna Puggioli ◽  
Fabrizio Balestrino ◽  
...  
Keyword(s):  
Aedes Albopictus ◽  
Mass Rearing ◽  
Quality Parameters ◽  
Production Costs ◽  
Adult Mosquito ◽  
Public Health Importance ◽  
Asian Origin ◽  
Allochthonous Species

In Europe, one of the most significant mosquitoes of public health importance is Aedes albopictus (Skuse), an allochthonous species of Asian origin. One of the most promising control methods against Aedes albopictus is the sterile insect technique (SIT), which consists of mass rearing the target species, separation of males from females, and male exposure to sterilizing ionizing radiation. Once released in the environment, the sterile males are expected to search for wild females to mate with. If mating occurs, no offspring is produced. The quality of sterile males is a crucial aspect in SIT programs in order to optimize effectiveness and limit production costs. The integration of probiotic microorganisms in larval and adult mosquito diets could enhance the quality parameters of the released sterile males. In this review, we attempt to give the most representative picture of the present knowledge on the relationships between gut microbiota of mosquitoes and the natural or artificial larval diet. Furthermore, the possible use of probiotic microorganisms for mosquito larvae rearing is explored. Based on the limited amount of data found in the literature, we hypothesize that a better understanding of the interaction between mosquitoes and their microbiota may bring significant improvements in mosquito mass rearing for SIT purposes.

Considerations of the technological quality assessment of sugarbeet

2011 ◽  
pp. 85-89 ◽  
Author(s):  
Giorgio Pezzi
Keyword(s):  
Quality Parameters ◽  
Northern Italy ◽  
Glucose Content ◽  
Long Term Storage ◽  
Interesting Correlation ◽  
Technological Quality ◽  
Thick Juice

No real improvement in the technological quality of beet has been recorded over the last 15 years in Northern Italy. Among the possible explanations for the quality stagnation is that the traditional formulae cannot correctly differentiate between sugarbeet varieties which produce thick juice of very high purity. This seems to be connected with the role of potassium. The use of a standard purification procedure gives reliable and accurate data which is immediately comparable with the factory data. Research projects on medium/long term storage are currently being performed by Co.Pro.B., Italy, in cooperation with Syngenta and Beta. Up to now the results have shown that storage of sugarbeet in autumn time in northern Italy is possible provided that suitable varieties and proper handling of the roots are employed. Results obtained in the storage trials are reported. Correlations have been found between quality parameters (purity, color and lime salts) of the purified juice with the glucose content of the raw juice. An interesting correlation is reported between purified juice purity and raw juice purity.

scholarly journals Thermal stability of connective tissue and meat quality of loose structured porcine semimembranosus muscles

2006 ◽  
pp. 1-5 ◽  
Author(s):  
Liisa Voutila ◽  
Anne Maria Mullen ◽  
Paul Allen ◽  
Declan Troy ◽  
Eero Puolanne
Keyword(s):  
Connective Tissue ◽  
Meat Quality ◽  
Visual Assessment ◽  
B Value ◽  
Quality Parameters ◽  
Semimembranosus Muscle ◽  
L Value ◽  
Thermal Stability Of

Loose structure and PSE like zones on the lateral surface of porcine semimembranosus muscle have beenobserved by other researchers. However the role of connective tissue in this abnormally loose structure insemimembranosus muscle has not yet been clarified. We collected about 100g samples from 7 loosestructured and 7 normal structured Irish commercial porcine semimembranosus muscles in order tocompare the onset and peak of thermal transition temperature of intramuscular connective tissue betweenthe samples from the two groups. Meat quality parameters, ultimate pH, rough estimate for drip loss,lightness (L), redness (a) yellowness (b) and as well as electrical conductivity and reflectance were alsomeasured on the samples. Four of the samples characterized as normal by visual assessment showed DFDcharacteristic so the statistical analysis was carried out both including and excluding those samples. Inboth cases the onset (p<0.001; 56.94ºC vs. 59.82ºC) and peak (p<0.001; 62.59ºC vs. 64.06ºC) of thermaltransition temperature were significantly lower in loose structured meat than in normal structured meat.Also reflectance% was lower (p<0.01; 45.18% vs. 69.17%) and the colour lighter (higher L value; p<0.01;55.05 vs. 45.52) and more yellow (higher b value; p<0.001; 18.27 vs. 14.78) in loose structured meat thanin normal structured meat when the DFD like samples were excluded. These results indicate that loosestructure in porcine semimembranosus muscle could be attributed in part to connective tissue propertiespossibly in conjunction with PSE effects.

scholarly journals Quality of pre-sprouted sugarcane seedlings grown on substrates with decomposed babassu palm stem

2021 ◽  
Vol 51 ◽  
Author(s):  
Romário Martins Costa ◽  
Marcos Renan Lima Leite ◽  
Sâmia dos Santos Matos ◽  
Rayssa Carolinne Mouzinho de Sousa ◽  
Raissa Rachel Salustriano da Silva-Matos ◽  
...  
Keyword(s):  
Growth And Development ◽  
Dry Mass ◽  
Quality Parameters ◽  
Point Of View ◽  
Production Costs ◽  
Economic Point ◽  
Babassu Palm ◽  
Number Of Leaves ◽  
The Cost

ABSTRACT The use of pre-sprouted seedlings in the implantation of sugarcane crops not only reduces the establishment period and production costs, but also has other advantages, such as a lesser requirement of propagules (stems) and greater phytosanitary control of the seedlings, when compared to conventional planting. Commercial substrates are also expensive and their use increases the cost of seedlings. This study aimed to evaluate the quality of sugarcane pre-sprouted seedlings grown on substrates with different proportions of decomposed babassu palm stem (DBPS), as well as to recommend the substrate formulation that provides the most favorable environment for the growth and development of sugarcane pre-sprouted seedlings. For preparation of the substrate (S), DBPS and soil were used in the following proportions: S1: 0 % of DBPS + 100 % of soil; S2: 20 % of DBPS + 80 % of soil; S3: 40 % of DBPS + 60 % of soil; S4: 60 % of DBPS + 40 % of soil; S5: 80 % of DBPS + 20 % of soil; S6: 100 % of DBPS + 0 % of soil. The use of S2 and S3 considerably improved the seedling quality parameters, such as sprout diameter and length, number of leaves and total, shoot and root dry mass. However, from an economic point of view, S2 is recommended for use.

The role of feeding in the prevention of non-communicable diseases of poultry

2019 ◽  
Author(s):  
Сергей Енгашев ◽  
Syergyey YEngashyev ◽  
Тамара Околелова ◽  
Tamara Okolelova
Keyword(s):  
Metabolic Disorders ◽  
Raw Materials ◽  
Production Costs ◽  
Biologically Active ◽  
Poisonous Plants ◽  
Minimum Requirements ◽  
The Cost ◽  
Poultry Farming

The book deals with many factors, including anti-nutritional, determining the biological value of feed components. Considerable attention is paid to the minimum requirements that must be imposed on the quality of raw materials and can be met in each economy. Provides information on poisonous plants and weeds that may be present in the plant material and cause phytotoxicity. The causes of diseases of feed nature associated with metabolic disorders, and ways to prevent them. The consequences of technological violations in poultry farming are revealed. The role of the quality of raw materials, biologically active and mineral substances in the prevention of certain diseases of forage nature, increasing the productivity of poultry, reducing the cost of feed and their production costs. It is addressed to specialists and managers of poultry farms, feed industry enterprises, researchers, postgraduates and students.

scholarly journals The Influence of Brand on Consumer Quality Assessment of Clothes: A Case Study of the Polish Market

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Renata Salerno-Kochan ◽  
Paweł Turek
Keyword(s):  
Product Quality ◽  
Quality Parameters ◽  
Quality Level ◽  
Brand Name ◽  
Assessment Time ◽  
Result Analysis ◽  
Consumer Assessment

AbstractThis article presents the results of research carried out based on consumer assessment of the quality of clothing using sensory analysis. The study aimed to determine the role of the brand and information about it in assessing product quality and identify the quality parameters that distinguish brands of a similar quality level. An attempt was also made to classify popular brands of clothing available on the Polish market based on the parameters that determine their quality. A significant impact of the brand name on the sensory assessment of clothes’ quality has been reported. The study has shown that assessors attribute higher rating values to quality features when they know the product brand; moreover, the brand and its information shortens the assessment time, which may suggest that it simplifies and facilitates consumers’ decision-making process. The result analysis has led to the identification of three groups of the factors determining the quality of clothing products: fabric composition, workmanship, and all other variables. It has also led to the separation of three clusters, characterized by different levels of product quality, for which sets of features distinguishing a given category were determined.

scholarly journals Production Automation as A Factor in Improving Product Quality in The Automotive Industry

2020 ◽  
pp. 1-25
Author(s):  
Ewa Kulińska ◽  
Dariusz Masłowski ◽  
Małgorzata Dendera-Gruszka ◽  
Lilianna Wojtynek ◽  
Konstanty Szeląg
Keyword(s):  
Product Quality ◽  
Spot Welding ◽  
Industrial Robot ◽  
Welding Process ◽  
Quality Parameters ◽  
The Body ◽  
Production Costs ◽  
Production Automation ◽  
The Impact

The automation of production is an important element in the functioning of any production enterprise. The aim of this article is to analyze the quality of the product made manually with the use of spot-welding machines and to analyze the quality of the product made by the industrial robot type "Fanuc Robotics S-420i". The analyzed product was the front panel of the body, made of semi-finished products in the spot-welding process. During the analysis, the impact of production automation on the product quality was found. Applications of the robotized welding process are used not only because of better quality parameters, but also because of the significant reduction of production costs and less fatigue of employees. The robot operator is a quality controller and contributes to quality management.

scholarly journals Do tigers hunt during the day? Diel activity of the Asian tiger mosquito, Aedes albopictus (Diptera: Culicidae), in urban and suburban habitats of North America

2021 ◽  
Vol 15 (8) ◽  
pp. e0009438
Author(s):  
Isik Unlu ◽  
Ary Faraji ◽  
Nicholas Indelicato ◽  
James R. McNelly
Keyword(s):  
Public Health ◽  
Aedes Albopictus ◽  
Mosquito Control ◽  
Mosquito Species ◽  
Diel Activity ◽  
Adult Mosquito ◽  
Subtropical Climate ◽  
Public Health Importance ◽  
Late Season ◽  
Solar Noon

Background Aedes (Stegomyia) albopictus (Skuse) impacts human outdoor activity because of its aggressive biting behavior, and as a major vector of mosquito-borne diseases, it is also of public health importance. Although most mosquito species exhibit crepuscular activity by primarily host seeking at dawn and dusk, Ae. albopictus has been traditionally characterized as a diurnal or day-biting mosquito. With the global expansion and increased involvement of Ae. albopictus in mosquito-borne diseases, it is imperative to elucidate the diel activity of this species, particularly in newly invaded areas. Methodology and principal findings Human sweep netting and carbon dioxide-baited rotator traps were used to evaluate the diel activity of Ae. albopictus in two study sites. Both trapping methods were used in New Jersey’s Mercer County, USA (temperate/urban), while only human sweep netting was used in Florida’s Volusia County, USA (subtropical/suburban). Human sweep netting was performed to determine adult mosquito activity at Sunrise, Solar Noon, Sunset, and Lunar Midnight. Because New Jersey is in a temperate area, diel activity was investigated during the early season (3–19 July), peak season (25 July-19 September), and late season (22 September- 22 October). Aedes albopictus showed the highest activity during peak and late seasons at Solar Noon (P < 0.05). At Sunrise and Sunset during the peak season, Ae. albopictus activity was similar. Lunar Midnight activity was significantly lower than Sunrise and Solar Noon (P < 0.05) but was similar to that of Sunset. In the late season, the highest activity was observed during Solar Noon while the least activity was observed during Sunrise and Lunar Midnight (P<0.05). Bottle rotator traps used in conjunction with the human sweep net technique exhibited similar results. Seasonal activity was not differentiated in Florida due to the consistent subtropical climate. The highest adult activity was observed at Sunrise using human sweep netting, but it was not significantly different from Solar Noon and Sunset. The lowest adult activity was observed at Lunar Midnight; however, it was not significantly different from Solar Noon and Sunset. These results provide evidence that the diel activity of Ae. albopictus, contrary to the common perception of its diurnal activity, is much more varied. Conclusion/Significance Involvement of Ae. albopictus in the transmission of debilitating mosquito-borne pathogens such as chikungunya, dengue, and Zika virus, coupled with its affinity to thrive in human peridomestic environments, substantiates that our findings have global implications in areas where Ae. albopictus populations established. It also highlights the importance of behavioral studies of vector species which will not only help mosquito control professionals plan the timing of their control efforts but also provides empirical evidence against conventional wisdoms that may unjustly persist within public health stewards.

Quality is a key indicator of efficiency of brewery barley production

Ekonomika APK ◽  
2020 ◽  
Vol 314 (12) ◽  
pp. 103-111
Author(s):  
Viktoriia Kuzina
Keyword(s):  
Product Quality ◽  
Practical Experience ◽  
Production Costs ◽  
Special Role ◽  
Malting Barley ◽  
Agricultural Enterprises ◽  
Key Indicator ◽  
Theoretical Foundations

The purpose of the article is to generalize the theoretical foundations of the formation of brewing quality in grain and practical experience of barley farms and formulate recommendations on ways to improve the quality of grain products as a key indicator of efficiency of production of malting barley. Research methods. The following methods were used in the research: monographic, scientific generalization (in clarifying the essence of the concept of "quality"), dialectical (in determining the role of quality), expert evaluation (to determine the requirements of statistically unaccounted for barley), system analysis and abstract logical, (to determine the dynamics of the market, price conditions, justification of conclusions and proposals). Research results. The essence of the concept of product quality is revealed and the requirements of national standards for the quality of barley in the direction of use in comparison with European and modern contractual specifications of the malt producer directly in Ukraine are comprehensively covered. The factors influencing the quality of barley are clarified and recommendations how to improve it are adapted to the resource constraints of agricultural enterprises and changes in the external environment. A special role in improving the quality of malting barley is given to the integrated quality management system. The definition of brewing quality of grain as an economic category, which forms its additional value at all stages of the chain of physiological and biochemical transformations from barley to malt and beer is substantiated. We believe that the generalizing measure of economically optimal product quality is the price, which represents the ratio of production costs and sales of products with a set of properties. Scientific novelty. Studies of the role of quality, factors of its formation and impact on economic efficiency of production are based on multi-vector analysis of theoretical foundations on quality issues and practical experience in growing barley for brewing in farms cooperating with malting corporations in Ukraine. Practical significance. Conclusions on the need for unambiguous adequate perception of the role and quality problems of market-forming institutions and recommendations for improving the efficiency of malting barley by improving its quality will help to achieve a balance of industrial and commercial relations between related agricultural enterprises and malt corporations and sustainable development. Tabl.: 2. Refs.: 19.

scholarly journals The role of creatine in the organism of pigs and its effect on the quality of pork: a review / Rola kreatyny w organizmie świń i jej wpływ na jakość mięsa wieprzowego: artykuł przeglądowy

2013 ◽  
Vol 13 (2) ◽  
pp. 207-215 ◽  
Author(s):  
Bogdan Janicki ◽  
Mateusz Buzała
Keyword(s):  
Thermal Processing ◽  
Aromatic Amines ◽  
Quality Parameters ◽  
Heterocyclic Aromatic Amines ◽  
Drip Loss ◽  
Lactate Formation ◽  
Pig Feed ◽  
Water Holding

Abstract In pigs, creatine is synthesized mainly in the liver, kidneys and pancreas from amino acids such as glycine, arginine and methionine. It is located mainly in skeletal muscle (approximately 95-98%) in the form of phosphocreatine. It is a source of energy for muscles, thus delaying the postmortem metabolism of glycogen and lactate formation and a decrease in pH during conversion of muscle to meat. Use of supplemental creatine monohydrate in pig feed may contribute to the improvement of pork quality parameters such as pH, colour, water holding capacity and drip loss. These parameters are also improved in pigs carrying the RN- and RYR1T gene. Creatine contained in meat can also be a precursor of heterocyclic aromatic amines mutagenic to humans, formed during thermal processing of meat.

scholarly journals Climate Change Impacts on Water Quality of Water Bodies-A Review

2020 ◽  
pp. 26-37
Author(s):  
Eliud Salila ◽  
Mahendra Pal Sharma ◽  
Rajesh Singh
Keyword(s):  
Climate Change ◽  
Water Quality ◽  
Climate Change Impacts ◽  
Quality Parameters ◽  
Water Bodies ◽  
Preparedness Plan ◽  
Quality Of Water ◽  
Impacts Of Climate Change

The impacts of climate change on water quality of water bodies are associated with the climatic extreme events (heavy rainfall and flood, heat, drought, wildfires, cyclones, hurricane, super storms) as the major drivers that require knowledge of understanding. Most research studies present the role of climate change in threatening water quality, risks on drinking water and contributions of catchment in water pollution, but less attention has directed to specific sensitive water quality parameters, appropriate methodologies, risks on ecosystem and managerial practice to reduce the impacts. This review highlight the of effect climate change on surface water bodies based on recent literatures on the impacts of climate change on water quality and promote practical opportunity for better management of these impacts. We conclude that consideration of climate change preparedness plan in catchments is the best option to adopt for minimization of climate change impacts on water quality of water bodies.

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