scholarly journals The use of active coal feed supplement in the young fish feeding

2021 ◽  
Vol 12 (2) ◽  
pp. 120-124
Author(s):  
K.S. Ostrenko ◽  
N.A. Yurina ◽  
E.V. Chernyshov ◽  
A.N. Ovcharova
Keyword(s):  
Young Fish ◽  
Feed Supplement ◽  
Fish Feeding ◽  
Active Coal

scholarly journals Use of activated charcoal feed supplement in diets of pigs

2021 ◽  
Vol 935 (1) ◽  
pp. 012013
Author(s):  
A Lavrentyev ◽  
V Sherne ◽  
V Semenov ◽  
L Zhestyanova ◽  
L Mikhaylova
Keyword(s):  
Activated Charcoal ◽  
Live Weight ◽  
Animal Husbandry ◽  
Feed Additive ◽  
Animal Origin ◽  
Special Role ◽  
Toxic Substances ◽  
Feed Supplement ◽  
Pig Farming ◽  
Active Coal

Abstract Pig farming is one of the most important and strategically valuable sub-branches of animal husbandry for ensuring food security of Russia and its regions as the special role of meat and meat products is determined with their significance as the main source of proteins of animal origin in human sensible nutrition. The novelty of the work is the use of an active coal feed additive as part of the diets of experimental piglets for growth and development and meat productivity during cultivation and fattening. Effective pig farming suggests use of high-quality feeds meeting requirements of presence of nutritional components and absence or minimum content of harmful and toxic substances. The conducted studies prove that the dose of activated charcoal feed supplement in the amount of 0.050 g/kg of live weight gives the highest results.

scholarly journals Californian red worm biomass increase and its cobalt accumulation under different concentrations of the metal in nutrient medium

2017 ◽  
Vol 7 (4) ◽  
pp. 525-528
Author(s):  
S. V. Merzlov ◽  
Y. O. Mashkin ◽  
G. V. Merzlova ◽  
A. V. Vovkohon
Keyword(s):  
Nutrient Medium ◽  
Dry Matter ◽  
The Body ◽  
Protein Supplement ◽  
Feed Supplement ◽  
Fish Feeding ◽  
Worm Body ◽  
Conducting Research ◽  
Mass Increase ◽  
Biomass Increase

<p>Californian red worms hybrid biomass is a biologically valuable feed supplement for livestock, poultry and fish. The worm body contains a significant amount of protein, lipids, vitamins and minerals. The chemical composition of worms depends on the nutrient medium in which they were grown. Worms can accumulate minerals from the nutrient medium in the body which called forth conducting research on obtaining worms biomass enriched with Cobalt with the prospect of its further use in fish feeding.<br />It has been found out that the worms quantity and the mass increase depends on the content of Cobalt in the nutrient medium. Adding 20 mg / kg of Cobalt to the nutrient medium contributed to 38.0% and 40.4% increased amount of worms weighing 0.4-0.8 g respectively. The study reveals that the number of immature worms increased by 32.2%. Adding 40 mg / kg of Cobalt to the nutrient medium resulted in worms number and mass increased by 45.9 and 51.1% respectively. Adding 160 mg / kg of Cobalt resulted in 6.5-27.7% smaller amount of worms weighing 0.4-0.8 g as compared with the experimental groups. It has been found out that the number of small worms reduced by 24.0-50.7% compared with the experimental groups under adding 160 mg / kg of Cobalt. The weight reduced by 22.4% and amount of young worms compared with the control has been revealed.<br />We have established the pattern that as Cobalt amount in the nutrient medium increases, its concentration in the worms biomass increases as well. The highest content of Cobalt was found in the biomass dry matter of worms grown in the nutrient medium enriched with the studied metal in the amount of 160 mg / kg.<br />Biomass of worms grown in the nutrient medium with 40 mg / kg of the studied metal added can be used in fish feeding as a protein supplement with a high content of Cobalt.</p>

Effect of Fluctuation of Intensity and Spectral Structure of Light on the Growth and Energetics of Young Fish

2003 ◽  
Vol 39 (2) ◽  
pp. 95-106 ◽  
Author(s):  
A. S. Konstantinov ◽  
V. S. Vechkanov ◽  
V. A. Kuznetsov ◽  
A. B. Ruchin
Keyword(s):  
Spectral Structure ◽  
Young Fish

Movement and Activity Patterns of Translocated Elk (Cervus elaphus Nelsoni) on an Active Coal Mine in Kentucky

2007 ◽  
Vol 3 (1) ◽  
Author(s):  
M. P. O. Olsson ◽  
J. Cox ◽  
J. Larkin ◽  
D. Maehr ◽  
P. Widén ◽  
...  
Keyword(s):  
Coal Mine ◽  
Cervus Elaphus ◽  
Activity Patterns ◽  
Cervus Elaphus Nelsoni ◽  
Active Coal

GEOCHEMISTRY AND QUALITY ASSESSMENT OF SURFACE WATER IN AN ACTIVE COAL WASHING PLANT OF NORTHERN IRAN

2016 ◽  
Vol 15 (4) ◽  
pp. 741-754 ◽  
Author(s):  
Faramarz Doulati Ardejani ◽  
Majid Shahhosseini ◽  
Sied Ziaedin Shafaei
Keyword(s):  
Surface Water ◽  
Quality Assessment ◽  
Northern Iran ◽  
Active Coal

scholarly journals Highly-Efficient Release of Ferulic Acid from Agro-Industrial By-Products via Enzymatic Hydrolysis with Cellulose-Degrading Enzymes: Part I–The Superiority of Hydrolytic Enzymes Versus Conventional Hydrolysis

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 782
Author(s):  
Karina Juhnevica-Radenkova ◽  
Jorens Kviesis ◽  
Diego A. Moreno ◽  
Dalija Seglina ◽  
Fernando Vallejo ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Ferulic Acid ◽  
Hydrolytic Enzymes ◽  
Structural Complexity ◽  
Triticum Aestivum L ◽  
Feed Supplement ◽  
Degrading Enzymes ◽  
Secale Cereale L ◽  
Pre Treatment ◽  
By Products

Historically Triticum aestívum L. and Secale cereále L. are widely used in the production of bakery products. From the total volume of grain cultivated, roughly 85% is used for the manufacturing of flour, while the remaining part is discarded or utilized rather inefficiently. The limited value attached to bran is associated with their structural complexity, i.e., the presence of cellulose, hemicellulose, and lignin, which makes this material suitable mostly as a feed supplement, while in food production its use presents a challenge. To valorize these materials to food and pharmaceutical applications, additional pre-treatment is required. In the present study, an effective, sustainable, and eco-friendly approach to ferulic acid (FA) production was demonstrated through the biorefining process accomplished by non-starch polysaccharides degrading enzymes. Up to 11.3 and 8.6 g kg−1 of FA was released from rye and wheat bran upon 24 h enzymatic hydrolysis with multi-enzyme complex Viscozyme® L, respectively.

scholarly journals Transfer of Cobalt Nanoparticles in a Simplified Food Web: From Algae to Zooplankton to Fish

Applied Nano ◽  
2021 ◽  
Vol 2 (3) ◽  
pp. 184-205
Author(s):  
Nanxuan Mei ◽  
Jonas Hedberg ◽  
Mikael T. Ekvall ◽  
Egle Kelpsiene ◽  
Lars-Anders Hansson ◽  
...  
Keyword(s):  
Food Web ◽  
Crucian Carp ◽  
Environmental Fate ◽  
Anthropogenic Sources ◽  
Natural Ecosystems ◽  
Fish Feeding ◽  
Aquatic Food ◽  
Significant Uptake ◽  
Co Nanoparticles ◽  
Crucian Carp Carassius Carassius

Cobalt (Co) nanoparticles (NPs) may be diffusely dispersed into natural ecosystems from various anthropogenic sources such as traffic settings and eventually end up in aquatic systems. As environmentally dispersed Co NPs may be transferred through an aquatic food web, this study investigated this transfer from algae (Scendesmus sp.) to zooplankton (Daphnia magna) to fish (Crucian carp, Carassius carassius). Effects of interactions between naturally excreted biomolecules from D. magna and Co NPs were investigated from an environmental fate perspective. ATR-FTIR measurements showed the adsorption of both algae constituents and excreted biomolecules onto the Co NPs. Less than 5% of the Co NPs formed heteroagglomerates with algae, partly an effect of both agglomeration and settling of the Co NPs. The presence of excreted biomolecules in the solution did not affect the extent of heteroagglomeration. Despite the low extent of heteroagglomeration between Co NPs and algae, the Co NPs were transferred to the next trophic level (D. magna). The Co uptake in D. magna was 300 times larger than the control samples (without Co NP), which were not influenced by the addition of excreted biomolecules to the solution. Significant uptake of Co was observed in the intestine of the fish feeding on D. magna containing Co NPs. No bioaccumulation of Co was observed in the fish. Moreover, 10–20% of the transferred Co NP mass was dissolved after 24 h in the simulated gut solution of the zooplankton (pH 7), and 50–60% was dissolved in the simulated gut solution of the fish (pH 4). The results elucidate that Co NPs gain different properties upon trophic transfer in the food web. Risk assessments should hence be conducted on transformed and weathered NPs rather than on pristine particles.

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