Using binders for feed producing needed for aquaculture

2021 ◽  
pp. 54-65
Author(s):  
Alexey Igorevich Bochkarev ◽  
Roman Victorovich Artemov ◽  
Valeriya Vladimirovna Gershunskaya ◽  
Maksim Vladimirovich Arnautov
Keyword(s):  
Sea Urchins ◽  
Interaction Mechanism ◽  
Analytical Techniques ◽  
Analytical Description ◽  
Fish Farming ◽  
Gibel Carp ◽  
Feed Production ◽  
Modern Classification ◽  
Mixed Feeds ◽  
Farming Efficiency

The article is dedicated to binders, which are used as components of aquaculture feeds. It includes generalization results of modern scientific-applied stuff, mostly obtained by foreign researches, since this kind of information presented at domestic specialized journals in extremely small volume. An information about functional purpose for main feed components — protein- and oil-containing, antioxidants and some others — was presented. Binders impaction on aquatic feed attraction and it’s nutritional value was shown, general functional purposes for binding agents also explained. A small analytical description for Russian binder market presented, a modern classification for binders also was shown as well as main segments in feed market where these binders can be used. Differences in rheological characteristics of various binders and it’s interaction mechanism with feed components within granules are described. Significant differences between Russian and foreign methodologies, used for researching of structurally-mechanical characteristics of feed pellets, are indicated and needs in domestic and foreign analytical techniques harmonization was justified. This article includes results of foreign investigations, dedicated of binders applied using (such as starches, obtained from various raw sources, carrageenan, CMC, pectin, agar, gelatin and so on) while pelleted and extruded feeds production was summarized. Crayfishes, shrimps, sea urchins and fishes (gibel carp, olive flounder) were used for researching and were fed by feeds with these binders. The best kinds of binders and it’s most effective concentrations for feeds, used for various species was defined, impaction on fish farming efficiency also was studied for some of these binders. Needs for further researching works with binders for using in feed production industry was justified. English version of the article is available at URL: https://panor.ru/articles/use-of-binding-substances-in-the-production-of-mixed-feeds-for-aquaculture/74633.html

DEVELOPMENT OF DOMESTIC FEED PRODUCTION IN CONDITIONS OF POTENTIAL RISKS AND UNCERTAINTY FACTORS

2021 ◽  
Vol 5 (11) ◽  
pp. 46-56
Author(s):  
Vasily N. Popov ◽  
◽  
Irina P. Bogomolov ◽  
Olga A. Urazova ◽  
◽  
...  
Keyword(s):  
Organizational Support ◽  
Animal Feed ◽  
Raw Materials ◽  
Feed Additives ◽  
Feed Production ◽  
Livestock Sector ◽  
Fodder Production ◽  
Potential Risks ◽  
Mixed Feeds ◽  
Negative Factors

Modern domestic feed production is developing at a fairly steady pace, which is facilitated by the increase in the volume and scale of production in the livestock sector. Today, domestic agricultural pro-ducers fully provide the domestic market with pork, poultry and egg. the efficiency of the development of the livestock sector depends on the quality of feed and the fattening system by more than 60%. All this proves the relevance and prospects of studying the dynamics of the development of feed production in order to im-prove the manageability of this area of management, organizational support, identify potential risks and de-velop effective solutions to minimize them. As the basic provisions of the study, it is worth noting: key produc-tion segments of the domestic feed industry; production volumes of mixed feeds, premixes, feed additives and concentrates in Russia; market leaders in the production of mixed feeds at the time of 2019.; the reasons for the transition of large companies to self-feed; the negative factors (risks) which impact on sustainable devel-opment of the Russian market of animal feed; scenarios of development of domestic fodder production in the short term (2–3 years) taking into account the most pressing problems and uncertainties (distribution COVID-19; higher prices for imported feed additives; devaluation; grain yield; volatility of prices for raw materials and components, logistics, etc.); substantiation of the prospects for the development of the Russian food complex against the background of the strengthening of the global problem of hunger and food security.

Growing sterlet fingerlings (Asirepseg ruthenus L.) and their albinos in a closed-loop water supply system using feed of different nutritional values

2021 ◽  
pp. 70-79
Author(s):  
Magomed Ashurbegovich Mammaev ◽  
Nuhkadi Ibragimovich Rabazanov ◽  
Magomed Kurbanovich Mirzakhanov ◽  
Salimat Alilovna Chalaeva ◽  
Patima Kadievna Mammayeva ◽  
...  
Keyword(s):  
Closed Loop ◽  
Normal Growth ◽  
Fish Farming ◽  
Biological Indicators ◽  
Fat Content ◽  
Main Task ◽  
Farmed Fish ◽  
Nutritional Values ◽  
Fish Breeding ◽  
Mixed Feeds

When growing fish in conditions of intensive technologies for normal growth and development, the main task is to provide them with a balanced full-fledged food. Currently, the most widely used in industrial fish farming are granulated mixed feeds of various formulations that fully meet the needs of the farmed fish. The objects of the study were the same-age sterlet fingerlings of ordinary color with an initial weight of 112–132 g and albino sterlet fingerlings weighing 99–105 g. We used mixed feeds from two manufacturers Aquarex (Russia) and Le Gouessant, which differ in fat content. Manual feeding. The temperature range is 21–23 °C. When feeding young sterlets of the usual color with the Aquarex compound feed, the average daily increase was 1.93 g, and when feeding with the Le Gouessant compound feed — 2.76 g, which is 43.0 % more. Albinos, on the contrary, had higher rates when fed with Aquarex compound feed — the average daily increase was 2.77 g, and on Le Gouessant compound feed — 2.13 g, which is 30.0 % lower. As a result of the conducted studies, it was found that the highest fish-breeding and biological indicators were achieved by sterlet fingerlings of the usual color when feeding them with Le Gouessant compound feed, and albino sterlets-when using Aquarex feed with a higher fat content. This indicates that for the successful cultivation of albino sterlets, mixed feeds with a fat:protein ratio of 1:2.5 should be used, and sterlets of ordinary color — 1:4.3, which should be taken into account when selecting mixed feeds, or making a diet.

scholarly journals Yem Fabrikalarında Uygulanan Teknolojik İşlemlerin Karma Yem Besin Maddesi İçeriklerine Etkisinin Belirlenmesi ve Kalite Kritik Noktaları Oluşturulması

2019 ◽  
Vol 7 (12) ◽  
pp. 2245
Author(s):  
Yavuz Gürbüz ◽  
Mustafa Yılmaz
Keyword(s):  
Raw Materials ◽  
Metabolic Energy ◽  
Control Points ◽  
Nutrient Contents ◽  
Cattle Feed ◽  
Feed Production ◽  
Commercial Feed ◽  
Mixed Feeds ◽  
Feed Mill

In this study, it is aimed to establish quality critical points in order to determine the quality of feeds prepared in compound feed factories before production. For this purpose, quality control points should be established and continuously monitored in compound feed production. With our study, the quality of the raw materials we use in the production of compound feed (feed nutrient contents), and then determined the important technological changes in feed mill; control points were established in mill, mixer, molasses mixer, conditioning, pellet press inlet, pellet press outlet, cooler and packaging sections. Four different mixed feeds (quail, laying hens, dairy cow, beef cattle feed) were sampled from these regions. The study was carried out in a commercial feed factory. Firstly, rations were prepared with the formulation program on the computer of these compound feeds. Then, samples were taken from the determined points and nutrient contents (dry matter, crude protein, crude oil, crude cellulose, crude ash, starch, sugar, metabolic energy value) were compared with both chemical and NIRS method. According to the data obtained; In the samples taken under the mill, both chemical and NIRS methods were used and the results did not reflect the formulation values. According to the findings of the research, the results obtained from the samples taken from the sub-mixer bunker showed close values from the formulation values of the mixed feeds and it was concluded that it may be the most appropriate quality critical point.

Production and use of farm-made fish feeds by small-scale pond fish farmers in Ghana

2017 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
F.A. Anani, F.K.E. Nunoo, M. Steiner-Asiedu, N.W. Agbo, T.N.N. Nortey
Keyword(s):  
Fish Farming ◽  
Cost Effective ◽  
Small Scale ◽  
Fish Feed ◽  
Commercial Fish ◽  
Feed Formulation ◽  
Feed Production ◽  
Cultured Fish ◽  
Fish Feeds ◽  
Commercial Feeds

The increasing costs of commercial fish feeds have made it imperative for most small-scale pond fish farmers in Ghana to resort to the use of alternative feed types to feed cultured fish. Some fish farmers rotate commercial feeds with farm-made types. This study was carried out to investigate the production and use of farm-made fish feeds by small-scale pond fish farmers in five major pond fish farming Regions (Ashanti, Brong-Ahafo, Central, Volta and Western) in Ghana. Of the 147 farmers interviewed in all the five regions, 86 farmers used farm-made feeds of which 37 depended solely on farm-made feeds whilst 49 used both commercial and farm-made feeds. Farm-made feeds were produced using locally available ingredients and the most used oneswere groundnut bran (92%), fish meal (90%), wheat bran (74%) and maize (60%). The farmers did not follow appropriate and standardized feed formulation protocol during farm-made fish feed production. Hence, farm-made fish feeds produced by all farmers interviewed were found not to be nutritionally balanced. There is the need for small-scale pond fish farmers in Ghana to be trained in formulation and production of nutritionally balanced and cost-effective fish feeds so as to increase fish production through aquaculture in the country.

scholarly journals TENDENCIES AND PECULIARITIES OF SHRIMP FEED PRODUCTION

2018 ◽  
Vol 18 (1) ◽  
Author(s):  
LIUDMYLA V. FIHURSKA
Keyword(s):  
Life Cycle ◽  
Protein Content ◽  
Fish Meal ◽  
Breeding Systems ◽  
Theoretical Research ◽  
Annual Growth Rate ◽  
Feed Production ◽  
Shrimp Feed ◽  
Mixed Feeds ◽  
The Cost

Aquaculture is food sector, which is growing rapidly in the last 25 years with annual growth rate 8,2 . One of the mostperspective branches of aquaculture is shrimp farming. The cost of feeds is up to 80% of the cost of shrimp breeding, so providingthe industry with high-quality feeds is the important goal of the feed industry in all over the world. The theoretical research was devotedto the task of compound shrimp feed production. In order to satisfy shrimp requirements, shrimp feeding systems were shown.Existing shrimp breeding systems are shown as different from the type of reservoirs (static / running water, indoor or outdoor), feedingmethods, and the species of grown shrimp. Features of the nutritional standards for freshwater and saltwater shrimps were analyzed.Nutrient requirements of shrimp have been changed through shrimp life-cycle. The shrimp life-cycle was shown.World leaders-producers of compound mixed feeds for shrimps were shown. The analysis of pellet size and nutritional valueof compound mixed feeds of crude protein content in prestart, starter, grower and finish periods of cultivation and in accordancewith the system of cultivation and feeding shrimp (intensive, extensive, semi-intensive) is carried out. The requirements for the contentof main minerals, vitamins and restrictions to the content of crude fiber are given. Traditional ingredients are described. Bindersand preservatives, which are used for shrimp feeds, are shown and subscribed. In raw material the main problem is the need to ensurehigh protein content in the shrimp feed recipes. Because of many factors, fish meal quantity should be reduced in recipes. Becauseof its attractive amino acid content, availability and relatively affordable price, soybean meal and soy concentrates have receivedincreasing attention as substitutes for marine animal meals.The features of technological lines and processes of production of mixed feeds for shrimp are shown.Еhe advantages and disadvantages of using the two most common processes of production of shrimp feeds (pelleting andextrusion), despite the relatively high cost extrusion, undoubtedly, is the main process of shrimp feed production.At the same time, there are challenges, which need to be overcome by the industry for effective further development: toproduce environmentally friendly feeds, to conduct further studies in order to clarify the required nutritional value of shrimp feedand add amino acids, feed enzymes, chemo-attractants, probiotics, and immunostimulants, to provide the necessary water stability ofpellets, and to increase feed conversion rate, develop regional, national, or international guidelines and codes of practices for bothfeed manufacturing practices and feed management practices, reduce fish meal in shrimp feed recipes.Despite the existence of problems, shrimp production is growing and the production of feed for their feeding has a greatpotential as an important source of animal protein in human nutrition.

scholarly journals Novel mesostructured inclusions in the epidermal lining of Artemia franciscana ovisacs show optical activity

PeerJ ◽  
2017 ◽  
Vol 5 ◽  
pp. e3923 ◽  
Author(s):  
Elena Hollergschwandtner ◽  
Thomas Schwaha ◽  
Josef Neumüller ◽  
Ulrich Kaindl ◽  
Daniela Gruber ◽  
...  
Keyword(s):  
Self Assembly ◽  
Sea Urchins ◽  
Unknown Origin ◽  
Freeze Substitution ◽  
Fish Farming ◽  
Artemia Franciscana ◽  
Selected Area Electron Diffraction ◽  
The Status

Background Biomineralization, e.g., in sea urchins or mollusks, includes the assembly of mesoscopic superstructures from inorganic crystalline components and biopolymers. The resulting mesocrystals inspire biophysicists and material scientists alike, because of their extraordinary physical properties. Current efforts to replicate mesocrystal synthesis in vitro require understanding the principles of their self-assembly in vivo. One question, not addressed so far, is whether intracellular crystals of proteins can assemble with biopolymers into functional mesocrystal-like structures. During our electron microscopy studies into Artemia franciscana (Crustacea: Branchiopoda), we found initial evidence of such proteinaceous mesostructures. Results EM preparations with high-pressure freezing and accelerated freeze substitution revealed an extraordinary intracellular source of mesostructured inclusions in both the cyto-and nucleoplasm of the epidermal lining of ovisacs of A. franciscana. Confocal reflection microscopy not only confirmed our finding; it also revealed reflective, light dispersing activity of these flake-like structures, their positioning and orientation with respect to the ovisac inside. Both the striation of alternating electron dense and electron-lucent components and the sharp edges of the flakes indicate self-assembly of material of yet unknown origin under supposed participation of crystallization. However, selected area electron diffraction could not verify the status of crystallization. Energy dispersive X-ray analysis measured a marked increase in nitrogen within the flake-like inclusion, and the almost complete absence of elements that are typically involved in inorganic crystallization. This rise in nitrogen could possibility be related to higher package density of proteins, achieved by mesostructure assembly. Conclusions The ovisac lining of A. franciscana is endowed with numerous mesostructured inclusions that have not been previously reported. We hypothesize that their self-assembly was from proteinaceous polycrystalline units and carbohydrates. These mesostructured flakes displayed active optical properties, as an umbrella-like, reflective cover of the ovisac, which suggests a functional role in the reproduction of A. franciscana. In turn, studies into ovisac mesostructured inclusions could help to optimizing rearing Artemia as feed for fish farming. We propose Artemia ovisacs as an in vivo model system for studying mesostructure formation.

scholarly journals Modeling effect of selenium on broiler chickens’ body

2021 ◽  
Vol 23 (95) ◽  
pp. 128-135
Author(s):  
O. I. Sobolev ◽  
B. V. Gutyj ◽  
Y. V. Zasukha ◽  
P. M. Karkach ◽  
V. F. Fesenko ◽  
...  
Keyword(s):  
Broiler Chickens ◽  
Biological Action ◽  
Scientific Data ◽  
Control Group ◽  
Mixed Feed ◽  
Wide Range ◽  
Modern Classification ◽  
Mixed Feeds ◽  
Experimental Group

In recent years, based on new scientific data, many countries worldwide have been revising the existing standards for introducing trace elements in mixed feed for highly productive broiler chicken crosses. This also applies to selenium, which is recognized as an indispensable biotic ultramicroelement with a wide range of biological action according to modern classification. However, some aspects of the selenium effects on poultry have not been elucidated yet. We have conducted comprehensive research to deepen and expand modern ideas about the biological role of selenium, its impact on the interior and productive qualities of broiler chickens in the post-embryonic period of ontogenesis. One of the tasks was to study the causal relationship between the level of selenium consumption by broiler chickens and the studied indicators. The research was conducted on broiler chickens of the Cobb 500 cross. During the rearing period, the feeding of broiler chickens of all groups was carried out with dry full-fledged mixed feeds following the existing norms. The poultry of the first control group did not receive selenium supplementation. The poultry of the second experimental group was additionally injected with Selenium at the rate of 0.2 mg/kg, the third of 0.3, and the fourth of 0.4 mg/kg. When conducting a correlation analysis of the obtained experimental data, it was found that there are different levels and directions of relationship between internal and economically valuable features included in the study, which may vary depending on the selenium content in mixed feed for broiler chickens. A scheme of modeling the effect of selenium on broiler chickens’ bodies is proposed.

The Use of Advanced Analytical Techniques for Characterization of the Chemical, Physical, and Crystallographic Nature of a Surface

1973 ◽  
Vol 31 ◽  
pp. 132-133 ◽  
Author(s):  
R. E. Herfert
Keyword(s):  
Surface Characterization ◽  
Analytical Techniques ◽  
X Ray Diffraction ◽  
Depth Of Penetration ◽  
X Ray ◽  
The Past ◽  
Transmission Electron ◽  
Scanning Electron

Studies of the nature of a surface, either metallic or nonmetallic, in the past, have been limited to the instrumentation available for these measurements. In the past, optical microscopy, replica transmission electron microscopy, electron or X-ray diffraction and optical or X-ray spectroscopy have provided the means of surface characterization. Actually, some of these techniques are not purely surface; the depth of penetration may be a few thousands of an inch. Within the last five years, instrumentation has been made available which now makes it practical for use to study the outer few 100A of layers and characterize it completely from a chemical, physical, and crystallographic standpoint. The scanning electron microscope (SEM) provides a means of viewing the surface of a material in situ to magnifications as high as 250,000X.

Recent Applications of High Resolution Electron Microscopy to Crystalline Arrays of Virus Particles

1978 ◽  
Vol 36 (3) ◽  
pp. 470-482 ◽  
Author(s):  
R.W. Horne
Keyword(s):  
Electron Microscopy ◽  
Image Processing ◽  
Analytical Techniques ◽  
Staining Technique ◽  
High Resolution Electron Microscopy ◽  
Optical Diffraction ◽  
Full Potential ◽  
Virus Particles ◽  
Resolution Electron ◽  
Wide Range

The technique of surrounding virus particles with a neutralised electron dense stain was described at the Fourth International Congress on Electron Microscopy, Berlin 1958 (see Home & Brenner, 1960, p. 625). For many years the negative staining technique in one form or another, has been applied to a wide range of biological materials. However, the full potential of the method has only recently been explored following the development and applications of optical diffraction and computer image analytical techniques to electron micrographs (cf. De Hosier & Klug, 1968; Markham 1968; Crowther et al., 1970; Home & Markham, 1973; Klug & Berger, 1974; Crowther & Klug, 1975). These image processing procedures have allowed a more precise and quantitative approach to be made concerning the interpretation, measurement and reconstruction of repeating features in certain biological systems.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

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