scholarly journals Development of production technology for extruded starter compound feedsfor juvenile fish

2021 ◽  
pp. 10-16
Author(s):  
M. J. Bektursunova ◽  
S. T. Zhiyenbayeva ◽  
V. I. Sidorova ◽  
N. I. Yanvareva
Keyword(s):  
Production Technology ◽  
Water Resistance ◽  
Juvenile Fish ◽  
Fish Farms ◽  
Regulatory Requirements ◽  
Feed Industry ◽  
Physical Chemical ◽  
Fish Feeds

The article presents the results of developing recipes for domestic extruded starter compound feeds for zander, tilapia and Clary catfish. Technological modes of their production, as well as physical-chemical, mechanical and technological indicators of the developed compound feeds are established. The developed compound feeds are well-loose grains of dark and light brown colors, with sizes from 0,2 to 2,0 mm. Indicators of water resistance were at least 2,5 hours, crumbling no more than 1,5 %, swelling of granules 10-15 minutes, volume mass below 1000 kg/m3. The data obtained show that the developed feed meets the regulatory requirements for starting fish feeds. The introduction of the developed technology for the production of starter compound feeds at domestic enterprises of the feed industry will reduce the dependence of industrial fish farms on the import of compound feeds and thereby increase the profitability of the industry.

scholarly journals Development of the composition and production technology of injection medication for intra-articular introduction based on sodiun hyaluronate

2019 ◽  
pp. 75-85
Author(s):  
O. O. Saliy ◽  
O. V. Los ◽  
O. P. Baula ◽  
K. F. Matsiutsia
Keyword(s):  
Production Technology ◽  
Sodium Hyaluronate ◽  
Chemical Properties ◽  
Quality Criterion ◽  
Quality Criteria ◽  
Saturated Steam ◽  
Critical Parameters ◽  
Injection Solution ◽  
Physical Chemical ◽  
Sterilization Mode

Osteoarthrosis is the most widespread disease of musculoskeletal system, which leads to different level of disability in 10–30% of cases. The age of the person is one of the key risk factors for the development of such disease. The most effective resolution is a surgery in which joints are replaced, but this method is very risky and expensive especially for elderly people. That is why development of the composition and research in new technological aspects of biotechnological medication is an actual course in pharmacy. The aim of research: development of the composition and production technology of injection solution of hyaluronic acid as sodium hyaluronate for the therapy of degenerate inflammatory disease of articulation. The object of the study is an injection with sodium hyaluronate for intra-articular administration. Evaluation of the test results when choosing the optimal technology for preparing the injection solution was carried out by the visual method (description, transparency), and by the method of rotational viscometry (viscosity). The suitability of the sterilization regime was determined by physicochemical methods (appearance, transparency, viscosity, pH of the solution) and microbiological method (sterility) according to the requirements of SPhU. The quantitative content of sodium hyaluronate was determined by spectrophotometry (SPhU, 2.2.25) using a carbazole reagent. The results of the studies  has  been developed the optimal composition  of the drug based on stabilized sodium hyaluronate by the excipient BDE. The resulting solution in its physical-chemical properties are a clear, highly viscous aqueous solution. The developed composition contains (in %): Sodium hyaluronate with a molecular weight of ~ 2 MDA (in terms of 100% substance) – 1.0; BDE – 0.75; sodium chloride – 0.85; phosphate buffer – up to pH from 5.0 to 8.5; water for injection – up to 100%. The critical parameters of the technological stages for the production of a drug with sodium hyaluronate are determined experimentally. Specific critical parameters are the degassing of a viscous solution, filtration and the conditions of the sterilization mode of the injection solution. It was experimentally established that the optimal parameters for the filtration stage are the use of a Durapore hydrophilic membrane made of polyvinyl difluoride (PVDF), the temperature of the solution is 50 ± 0.5 °C and the use of back pressure mode to reduce the volume wich is filtered per unit time. It was determined that the sterilization mode with saturated steam at a temperature of 121 °C for 8 min is optimal and ensures the quality of the solution in quality criterion of «Sterility». Samples of the experimental series of injection solution, obtained by the developed technology, comply with the requirements of SPhU for drugs for parenteral use according to physical-chemical and biological quality criteria as appearance, transparency, viscosity, pH of the solution, sterility, assay sodium hyaluronate.

scholarly journals Molecular identification of intergenus crosses involving catfish hybrids: risks for aquaculture production

2016 ◽  
Vol 14 (2) ◽  
Author(s):  
Diogo T. Hashimoto ◽  
Fernanda D. Prado ◽  
Fausto Foresti ◽  
Fábio Porto-Foresti
Keyword(s):  
Morphological Analysis ◽  
Mitochondrial Gene ◽  
Juvenile Fish ◽  
Morphological Identification ◽  
Genetic Integrity ◽  
Fish Farms ◽  
Pure Species ◽  
Hybrid Production ◽  
Cultivated Populations ◽  
Aquaculture Production

ABSTRACT Monitoring of the interspecific hybrid production and trade is essential for the appropriate management of these animals in fish farms. The identification of catfish hybrids by morphological analysis is unreliable, particularly of juveniles and post-F1 individuals. Therefore, in the present study, we used five molecular markers (four nuclear genes and one mitochondrial gene) to detect hybrids in the trade of pimelodid juvenile fish from different stocks purchased of five seed producers in Brazil. Samples commercialized as pintado (pure species Pseudoplatystoma corruscans ) from three fish farms were genetically identified as hybrid cachapinta (♀ P. reticulatum x ♂ P. corruscans ). In the stocks purchased as cachandiá (hybrid between ♀ P. reticulatum x ♂ Leiarius marmoratus ) and cachapira (hybrid between ♀ P. reticulatum x ♂ Phractocephalus hemioliopterus ), we suggested the occurrence of intergenus crosses involving the hybrid cachapinta, which was used instead of the pure species P. reticulatum . The problems involving the hybrid cachapinta production were discussed in the present study, especially because these animals have caused genetic contamination and threatened the genetic integrity of natural and cultivated populations. In order to improve the surveillance of the production and provide criteria for the correct management of catfish hybrids, genetic markers has become an excellent alternative to the morphological identification, including juveniles or post-F1 generations.

scholarly journals Analysis and optimization of production technology of the national Kyrgyz beverage Maksym

2021 ◽  
Vol 247 ◽  
pp. 01001
Author(s):  
Irina Bazhenova ◽  
Elena Chernova ◽  
Tatiana Bazhenova
Keyword(s):  
Lactic Acid ◽  
Lactic Acid Bacteria ◽  
Typhoid Fever ◽  
Production Technology ◽  
Titratable Acidity ◽  
Organoleptic Properties ◽  
Energy Value ◽  
Global Migration ◽  
Physical Chemical ◽  
Solids Content

Global migration of populations leads to a widespread of national cuisines, which require adaptation to new consumers. In this regard, it is relevant to change traditional recipes and technologies. Here, we analyzed physical, chemical and organoleptic properties of the national Kyrgyz and Kazakh beverage Maksym. This beverage has a long history, unique properties, and at present is produced only by Shoro. Although being a Kyrgyz signature beverage, when not properly fomulated, it may cause acute intestinal infectious such as salmonellosis, dysentery, and typhoid fever. Our analysis showed that traditional beverage contains 0.9 g of protein, 4.38 g of carbohydrates, vitamins: B1 - 0.08mg%, B2 - 0.1mg%, PP - 0.4mg%, C - 0.59gr% with the useful-energy value of only 27 Kcal. This research analyzes variants of barms for the production of national Kyrgyz drink Maksym with different proportion of yeast and lactic-acid bacteria. Traditional Maksym composition and its production technology have been modified. For the produced drink, sediment content, titratable acidity, solids content, ethanol volume, nutritional and energy value, and organoleptic properties were tested.

Impact of production technology on morphological lesions in the gills of commercial rainbow trout (Oncorhynchus mykiss, Walbaum 1792)

2017 ◽  
Vol 20 (2) ◽  
pp. 233-240
Author(s):  
E. Strzyżewska-Worotyńska ◽  
J. Szarek ◽  
I. Babińska ◽  
D. Gulda
Keyword(s):  
Rainbow Trout ◽  
Oncorhynchus Mykiss ◽  
Production Technology ◽  
Environmental Changes ◽  
Fish Farms ◽  
Rainbow Trout Oncorhynchus Mykiss ◽  
Recirculating Aquaculture ◽  
Production Technologies ◽  
Flow Through ◽  
The Difference

Abstract The most popular rainbow trout (Oncorhynchus mykiss, Walbaum 1792) production technologies include both an extensive method with the flow through system (FTS) and an intensive method with the recirculating aquaculture system (RAS). Their impact on the fish was evaluated with a morphological assessment of the gills, as these are organs susceptible to environmental changes. Trout of 350 – 500 g body mass were caught for trial in spring and autumn, with 36 fish originating from 3 fish farms with the FTS system and an equal number from 3 RAS fish farms (n = 6). The fish were macroscopically examined and the gills were investigated microscopically (haematoxylin and eosin staining). Hypertrophy and hyperplasia were most commonly detected, amounting to 89% of all structural abnormalities. These lesions were slightly more common in the FTS, especially in autumn, whereas the changes to the blood vessels in the gills were observed more frequently in the rainbow trout from the RAS system than in the fish obtained from the FTS technology (the difference was statistically significant). The morphological lesions in the mucous cells of the gills were detected at a comparable severity regardless of the technology or production season. The predominantly low values of the histopathologic indices, which described the microscopic lesions in the gills of fish from the FTS and RAS systems, showed that the examined organ was most often free of lesions or demonstrated only minor morphological damage regardless of the production technology.

scholarly journals Comparison of diet and otolith growth of juvenile wild fish communities at fish farms and natural habitats

2014 ◽  
Vol 72 (3) ◽  
pp. 916-929 ◽  
Author(s):  
Damian Fernandez-Jover ◽  
Pablo Sanchez-Jerez
Keyword(s):  
Mediterranean Sea ◽  
Fish Species ◽  
Juvenile Fish ◽  
Fish Growth ◽  
Otolith Growth ◽  
Fish Farms ◽  
Natural Habitats ◽  
Rocky Habitats ◽  
Associated Species ◽  
And Control

Abstract Juvenile fish of >20 different species use offshore floating sea cages as settlement habitats in the Mediterranean Sea. In the present work, surveys were conducted to identify differences between species composition and abundance of new settlers among farms and control rocky-shore environments and to test for variation in their diets. Along with this, otolith growth and morphology analyses were also applied to better understand the consequences for the ecology and growth performance of several fish species that use coastal farms as recruitment habitats in the southwestern Mediterranean Sea. Results showed that fish farms are acting as a new habitat for the settlement of juvenile fish and that detected abundance could be compared with that found at natural habitats such as shallow rocky environments. However, a consistent pattern for all the studied species was a significant variation in otolith-shape descriptors, principally identified through the Aspect Ratio index, which was lower for the farm-associated species Atherina boyeri, Oblada melanura, and Sarpa salpa. Otolith modifications were effectively detected by elliptic Fourier descriptors since multivariate analysis correctly identified farm or control origin at 78.8, 85.1, and 86.1% for A. boyeri, O. melanura, and S. salpa individuals, respectively. According to these results, fish farms may offer new settlement habitat for several fish species on open coastal areas and provide resources equivalent to rocky habitats, but at the same time causing some effect on fish growth as a potential consequence of the availability of particulate organic matter derived from feed pellets.

scholarly journals Fish feeds and feed management practices in the Kenyan aquaculture sector: Challenges and opportunities

2021 ◽  
Vol 24 (1) ◽  
pp. 82-89
Author(s):  
Jonathan Munguti ◽  
Hannington Odame ◽  
James Kirimi ◽  
Kevin Obiero ◽  
Erick Ogello ◽  
...  
Keyword(s):  
Management Practices ◽  
Cost Effective ◽  
Current Status ◽  
Fish Feed ◽  
High Quality ◽  
Fish Food ◽  
Feed Formulation ◽  
Feed Industry ◽  
Feed Management ◽  
Fish Feeds

Abstract Feeds and feed management practices are key to the development of the aquaculture sector. To achieve high levels of aquaculture production, fish farmers need nutritionally adequate and cost-effective feeds, which are coupled with good feed management practices. Access to high quality and cost-effective feeds is one of the prerequisites to successful fish farming. This paper reviews the current status of the Kenyan fish feed industry and feed management practices. The review includes constraints and opportunities in fish feeds from a farmer’s perspective. The review shows that the fish feed industry has been boosted by the development of fish feed standards, which has ensured access to high-quality fish feeds by all farmers. Feed management practices considerably impact on the economic performance in fish production. Thus, adopting appropriate feed management technologies and feeding strategies is instrumental in maximizing aquaculture productivity. Some of the major challenges faced by fish farmers in the feed sector including limited access to finance, lack of appropriate technical innovations, limited knowledge in feed formulation and processing and poor feed handling and storage are discussed. These challenges pose limitation in investment opportunities for a viable and sustainable fish feed processing and manufacturing to meet the rising demand occasioned by increased demand for fish food in Kenya. There is a huge potential to develop public-private partnerships with farmer groups to improve access to training and information dissemination on feeds availability and quality. Training fish farmers on feed formulation using locally available feed ingredients provide an opportunity to reduce feed costs, increase feeding efficiency and improve profitability. This paper reviews the current status of the Kenyan fish feed industry and feed management practices including constraints and opportunities from a farmer’s perspective.

scholarly journals Microbiological and physical-chemical characteristics of the water used to Tambaqui Colossoma macropomum species, in Maranhão State

2017 ◽  
Vol 18 (3) ◽  
pp. 430-438
Author(s):  
Maria Cecília de Sousa CUNHA ◽  
Ana Cristina Vieira COSTA ◽  
Márcia Araújo Vander BOOR ◽  
Francisca Neide COSTA
Keyword(s):  
Dissolved Oxygen ◽  
Heterotrophic Bacteria ◽  
Fish Farming ◽  
Climatic Conditions ◽  
Physical Parameters ◽  
Chemical Characteristics ◽  
Fish Farms ◽  
Colossoma Macropomum ◽  
Physical Chemical ◽  
Physico Chemical

SUMMARY Brazil has favorable hydrographic and climatic conditions for the development of fish farming. The success of this activity depends on the quality of the water, since it directly influences its productivity. Therefore, in order to verify the microbiological and physico - chemical characteristics of the water in the creation of the tambaqui (Colossoma macropomum) species in fish farming in São Bento, a municipality located in the. State, 16 water samples from six fish farms were evaluated for the physical parameters (Temperature, transparency, dissolved oxygen, pH, turbidity, color, alkalinity, hardness, nitrate and nitrite) and microbiological (coliforms and heterotrophic mesophilic bacteria). According to the findings, all samples were contaminated by total and thermotolerant coliforms, 13 (77.15%) were outside the standards recommended by the legislation. As for the mesophilic aerobic heterotrophic bacteria, the mean counts ranged from 30.6 x 102 to 4.7 x 104 CFU / mL. As for the physical-chemical parameters, it was verified that the temperature ranged from 27.4°C to 30°C; PH 5.0 to 8.2; Transparency ranged from 0 to 46 cm; Turbidity from 12 to 1,251 NTU, the color from 0 to 666.50 UH; Dissolved oxygen from 7.1 to 14.7 mg / L; Alkalinity of 17.5 to 412 mg / L; Hardness from 14.6 to 1027.8 mg / L; Nitrate from 1 to 160 mg / L and nitrite from 0.01 to 0.45 mg / L. The findings show that the water of fish farms has inadequate microbiological and physico-chemical characteristics for fish farming.

scholarly journals ELABORATION OF PRODUCTION TECHNOLOGY OF SEMI-SMOKED SAUSAGES USING LENTIL FLOUR, THYME AND JUNIPER

2016 ◽  
Vol 4 ◽  
pp. 3-8 ◽  
Author(s):  
Iryna Markovych ◽  
Maria Paska ◽  
Iryna Basarab
Keyword(s):  
Production Technology ◽  
Antioxidant Properties ◽  
Raw Material ◽  
Quality And Safety ◽  
Aromatic Plants ◽  
Technological Parameters ◽  
Hydrolysis Products ◽  
Physical Chemical ◽  
Lentil Flour ◽  
Microbiological Parameters

The complex studies of chemical and biochemical composition of the vegetable raw material were carried out; their influence on technological parameters and microstructure of forcemeat of semi-smoked sausages was detected to prove the expedience of using the spicy-aromatic plants in the production technology of semi-smoked sausages. Antioxidant properties of thyme and juniper were studied. The quality and safety of the new types of semi-smoked sausages were proved on the base of their study by organoleptic, physical-chemical, structural-mechanic, microbiological parameters. On the base of received results it was persuasively proved the expedience of using the flour of germinated and non-germinated lentil in combination with the meat raw material, especially with chicken, spicy-aromatic plants in composition of semi-smoked sausages, because it favors the improvement of their biological value. Thyme and juniper decelerate the intensity of hydrolysis products creation by 2 % and peroxide creation in the average by 12 % in the studied samples comparing with control. It was determined the maximal storage life of the new types of semi-smoked sausages that is 15 days at temperature 6±2 °С.

scholarly journals Lightweight concrete of continuous structure without fine aggregate

2018 ◽  
Vol 196 ◽  
pp. 04006
Author(s):  
Alexandr Chiknovoryan ◽  
Sergey Mizuryaev ◽  
Anna Zhigulina
Keyword(s):  
Thermal Conductivity ◽  
Production Technology ◽  
Water Resistance ◽  
Lightweight Concrete ◽  
Air Entrainment ◽  
Fine Aggregate ◽  
Continuous Structure ◽  
Sufficient Stability ◽  
Long Time ◽  
Construction Practice

The study deals with basic properties and area of application of lightweight concrete of continuous structure without fine aggregate. When fine aggregate is excluded from the concrete structure, it becomes lightweight, has lower thermal conductivity and cost, simpler production technology. It also has durability sufficient for wall panels, water resistance, frost resistance and a number of other indicators. The paper describes additives used for concrete air entrainment. Using these additives does not complicate the production technology of panels, the panels can be easily transported and have sufficient stability and durability upon storage. The article justifies effective application of light concrete with continuous structure without fine aggregate in low-rise construction. Light concretes of continuous structure without fine aggregate allow to completely exclude the use of fine aggregate, to sharply reduce density and thermal conductivity of concrete, as well as to reduce moisture content and humidity of products, improve their cohesion and workability and get a number of other benefits. The study shows that light concrete without fine aggregate numerous advantages prove that it will be used in construction practice for a long time.

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