The effectiveness of rearing of steers of Aubrac breed depending on the age of their slaughter

2020 ◽  
pp. 3-8
Author(s):  
A. Bakharev ◽  
O. Sheveleva ◽  
K. Fomintsev ◽  
L. Lysenko
Keyword(s):  
Total Energy ◽  
Economic Assessment ◽  
Individual Characteristics ◽  
Significant Discrepancy ◽  
Beef Breed ◽  
Effective Age ◽  
The Difference ◽  
Total Difference ◽  
Meat Productivity

The factors that influence the formation of meat productivity of cattle include feeding, breed, sex, age, fatness, conditions and individual characteristics of animals. The purpose of the work was to substantiate the effective age of slaughter of steers of specialized beef breed Aubrac. The research has been carried out in a breeding farm for breeding cattle of beef productivity in LLC “Bison” in the Omutinsky district in the Tyumen region. An economic assessment of the rearing of steers of Aubrac breed depending on the age of their slaughter has been presented in the paper. Studies have been carried out on steers have been reared up to the age of 15, 18 and 20 months. In the course of research, we have been studied the amount of feed have been consumed during the period of steers rearing and the total costs incurred. The amount of feed and energy consumed by the steers of the studied ages had a significant discrepancy. For example, steers reared before 18 and 20 months of age consumed more hay in relation to steers sold for meat at 15 months of age by 285,2 and 486,7 kg, haylage by 1228,7 and 2273,4 kg and concentrated feed by 276 and 462 kg, respectively. At the same time, the total difference in the amount of energy consumed was 1155,3 and 1685,9 EFU. The difference between the age of realization of steers at 18 and 20 months for the total energy consumed was 530,5 EFU. The level of profitability of production when selling steers for beef at the age of 18 months was 7,6 %, and at the age of 20 months it was 8,3 %. Early sale of steers for meat at the age of 15 months is unprofi table with a payback rate only 98 %.

scholarly journals Techno-Economic Assessment of Coal-Fired Power Unit Decarbonization Retrofit with KP-FHR Small Modular Reactors

Energies ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2557
Author(s):  
Łukasz Bartela ◽  
Paweł Gładysz ◽  
Charalampos Andreades ◽  
Staffan Qvist ◽  
Janusz Zdeb
Keyword(s):  
Net Present Value ◽  
Economic Assessment ◽  
Plant Design ◽  
Term Operation ◽  
Small Modular Reactors ◽  
Greenfield Investments ◽  
Unit Design ◽  
The Difference ◽  
Economic Analyses ◽  
The Eu

The near and mid-term future of the existing Polish coal-fired power fleet is uncertain. The longer-term operation of unabated coal power is incompatible with climate policy and is economically challenging because of the increasing price of CO2 emission allowances in the EU. The results of the techno-economic analysis presented in this paper indicate that the retrofit of existing coal-fired units, by means of replacing coal-fired boilers with small modular reactors, may be an interesting option for the Polish energy sector. It has been shown that the retrofit can reduce the costs in relation to greenfield investments by as much as 35%. This analysis focuses on the repowering of a 460 MW supercritical coal-fired unit based on the Łagisza power plant design with high temperature small modular nuclear reactors based on the 320 MWth unit design by Kairos Power. The technical analyses did not show any major difficulties in integrating. The economic analyses show that the proposed retrofits can be economically justified, and, in this respect, they are more advantageous than greenfield investments. For the base economic scenario, the difference in NPV (Net Present Value) is more favorable for the retrofit by 556.9 M€ and the discounted payback period for this pathway is 10 years.

Evaluation of the meat quality of chickens of the egg-meat direction of productivity, for promising use in organic production

2022 ◽  
pp. 42-47
Author(s):  
Z. Fedorova
Keyword(s):  
Meat Quality ◽  
Individual Characteristics ◽  
Organic Production ◽  
The Body ◽  
Early Assessment ◽  
Juvenile Period ◽  
Daily Growth ◽  
Meat Productivity ◽  
Age Studies

Purpose: studying the features of the formation of signs of meat productivity in chickens of the egg-meat direction in the juvenile period in ontogenesis and fixing the most informative age for early assessment of meat qualities.Materials and methods. Young grew in group cells of a 3-tier cellular battery. The dynamics of growth and the development of exterior and interior indicators, characterizing meat productivity in ontogenesis in the young of the Pushkin breed of chickens, which refers to an egg-meat type on productivity through periodic (every 2 weeks) weighing and taking protections of the physique in 100 heads of young people. On 21 heads, an anatomical cutting was carried out at which the mass of the heart, liver, two parts of the stomach (muscular, iron), the sum of the muscles (femur, crus, metatisium) took into account. The development of meat forms of the physique to determine the age and individual characteristics was determined using exterior articles of industrial (the length of the body, the length of the keel, the gripping of the chest, the length of the leg, hips, plus). Prombs were taken from the entire experienced livestock, together with weighing, every 2 weeks. In order to find the most informative age for an early estimate of meat quality, which would characterize meat productivity at an older age, the correlation was calculated between the industrial over the age periods and the mass of muscles at 16 weeks.Results. The dynamics of the average daily growth of the living mass and the mass of the carved carcass in the roosters was uneven. Until 8-week age, the average daily increase increased, then began to decline until 14 weeks of age, during 16-week aged an average increase increased dramatically. The dynamics of average daily growths in the roosters of individual muscles was similar, namely, from 4 to 8-week age, high rates of average daily growth were noted, and from 8 to 14 months of age there is a decrease, and then again activation of growth. Studies have shown that the growth of the skeleton is slowed down by 14 weeks. The dynamics of the average daily growth of internal organs in the roosters in the juvenile period occurs asynchronously. The greatest intensity of the growth of the heart, liver and stomach was observed on a 8-week age. Studies have shown that the stomach is most intensively developing up to 8 weeks, then development is braked sharply.Conclusion. Based on the data obtained, it can be concluded that for the preliminary selection of chickens of the egg-meat direction of cultivation with the best genetic potential for meat productivity, it is possible at 8 weeks old, but the final rating should be carried out no earlier than 14-week age. The estimation of meat qualities in a 14-week age should be carried out on the basis of live masses and industrial, namely, the oblique length of the body, the girth plus, the length of the leg, the preliminary estimate can be done in such a precursor, as the slanting the length of the body, the length of the leg and girth plus.

Biological nutrient removal wastewater treatments and sewage sludge anaerobic mesophilic digestion performances

2002 ◽  
Vol 46 (10) ◽  
pp. 199-208 ◽  
Author(s):  
D. Bolzonella ◽  
L. Innocenti ◽  
F. Cecchi
Keyword(s):  
Anaerobic Digestion ◽  
Sewage Sludge ◽  
Economic Assessment ◽  
Gas Production ◽  
Anaerobic Digester ◽  
Biological Nutrient Removal ◽  
Energetic Balance ◽  
Mesophilic Digestion ◽  
The Difference ◽  
Energy Balances

The paper deals with the performances of the mesophilic anaerobic digestion treatment of sewage sludge from a full scale BNR process without primary settling (nominally 300,000 PE). A relation between the activated sludge observed yields, Yobs, and the anaerobic digester performance was preliminarily found: for values of Yobs of 0.25 kgVSS/kgCOD the anaerobic digester specific gas production showed the best performances (0.22 m3/kgVSfed). This has to be confirmed with wider future studies. It was also shown the level of sludge pre-thickening to be reached for the self-sustaining warming of the digester also in wintertime. According to the energetic balance and to a comparison with an aerobic stabilisation process, it was pointed out as when a co-generation unit for heat and energy production was introduced about 3.4 kWh/PE y of energy were produced in the anaerobic digestion process. On the other hand, 4.3 kWh/PE y were spent if an aerobic stabilisation process was applied. The economic assessment, carried out on the basis of the energy balances, showed that the anaerobic digestion is always economically advantageous if compared to aerobic stabilisation processes, also for small WWTPs. According to the energetic evaluations an environmental balance was assessed, in terms of CO2 emissions. The difference between anaerobic and aerobic processes was about 5.3 kgCO2/PE y in favour of anaerobic processes application.

scholarly journals GIS-Based Energy Consumption and Spatial Variation of Protected Grape Cultivation in China

2018 ◽  
Vol 10 (9) ◽  
pp. 3248 ◽  
Author(s):  
Dong Tian ◽  
Min Zhang ◽  
Xuejian Wei ◽  
Jing Wang ◽  
Weisong Mu ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Energy Consumption ◽  
Total Energy ◽  
Energy Input ◽  
Production Systems ◽  
Organic Fertilizer ◽  
Total Energy Consumption ◽  
Renewable Energy Consumption ◽  
Input Structure ◽  
The Difference

This paper compares the difference in energy consumption in different sub-patterns and features of energy consumption structures used in protected grape production systems using statistical data. Then, spatial characteristics between different production modes based on geographic information systems are also analyzed. The results reveal that the types of energy consumption include steel, iron wire, water, chemical fertilizer, pesticides, electric power, organic fertilizer, plastic films, and labor. The total energy consumption for protected grape production was 210,534.3 MJ ha−1 in 2011, 211,504.6 MJ ha−1 in 2012, and 222,571.8 MJ ha−1 in 2013. From the perspective of cultivation modes, early ripening production and late ripening production consumed more energy than rain-shelter production; in terms of facility types, the total energy input of both vinyl tunnels and solar greenhouses were always higher than rain-shelter greenhouses. Indirect and non-renewable energy consumption were higher than that of direct and renewable energy, which accounted for 90% of energy consumption. Spatial analysis showed that the values of Moran’s I were all positive for the three years, which means protected grape input had a positive spatial autocorrelation. Therefore, we should adjust the energy input structure and choose more sustainable production modes to improve the sustainability of the production of protected grapes.

scholarly journals Influence of different method and different storage life on moisture and senzorial evaluation of durable salamis

2008 ◽  
Vol 56 (4) ◽  
pp. 183-196
Author(s):  
Hana Šulcerová ◽  
Jiří Štencl ◽  
A. Šulcová
Keyword(s):  
Storage Time ◽  
Storage Temperature ◽  
Heat Treated ◽  
Different Temperatures ◽  
The Difference ◽  
Total Difference ◽  
Cut Surface ◽  
Sausage Casing ◽  
General Appearance

Heat-treated salamis “Vysočina“ were produced with standard way in a meat factory; their diameter was 55 mm. Samples were stored under laboratory conditions at different temperatures: 5, 10, 15, 20, and 25 °C and sensory analysed every week during one month storage. The dry matter (d.m.) was measured, too. Descriptors of general appearance, sausage casing, texture, cut surface, dry edge, smell, taste, and salty were monitored. Biggest changes were in descriptors general appearance and sausage casing (P < 0.001) and also in dry edge (P < 0.010) during the month period. Germs of moulds were found only at 5 and 10 °C. Rapid increase of d.m. in samples was noticeable in the first week of the storage time. It was 3 % d.m. at 5 °C and 11 % d.m. at 25 °C. Increase of d.m. of salamis continues slowly in the next three weeks period; the total difference was about 10 % d.m. in the temperature range measured. Decrease of d.m. at 5 °C was noticed in the last week of the measurement. The difference was 3.5 % d.m. This change means that the equilibrium moisture content of the samples of salamis has been reached at the temperature 5 °C. The best sensorial quality of salamis “Vysočina” was in the storage temperature ranged from 15 to 20 °C.

scholarly journals Trade Liberalization and the Lead Role of Human Capital and Job Attributes in Wage Determination: The Case of Pakistan’s Labor Market

2009 ◽  
Vol 14 (1) ◽  
pp. 1-37 ◽  
Author(s):  
Bushra Yasmin
Keyword(s):  
Human Capital ◽  
Trade Liberalization ◽  
Wage Gap ◽  
Individual Characteristics ◽  
Wage Distribution ◽  
Wage Determination ◽  
Pay Gap ◽  
Job Attributes ◽  
The Difference

This study analyzes the role of human capital and job attributes, i.e., supply-side determinants, in determining wages in a period of trade liberalization. Using the Mincerian earning function and based on data from the Labor Force Surveys, we construct a model to estimate various wage determinants and compute the rates of return to different educational qualifications and relative occupational wage shares for the years 2005/06 and 1990/91. The estimated earning functions for 1990/91 and 2005/06 are compared to investigate whether individual characteristics—such as gender, job location, nature of job, educational qualifications, and different occupations—cause the wage gap to widen or contract under conditions of trade liberalization. The mean and quantile regression approach is used for estimation purposes. Our key findings postulate (i) an increasing gender pay gap, (ii) a higher wage premium to the highest educational qualification, and (iii) more or less stable relative wages for different occupations over time. In addition, wage dispersion across occupational groups appears more pronounced in 1990/91 than in 2005/06, implying a declining trend in the difference in wage distribution across occupations.

scholarly journals Pengaruh Subtitusi Tepung Daun Kumis Kucing (Orthosiphon Stamineus B.) Terhadap Mutu Gizi Sus Kering Sebagai Makanan Selingan Pasien Kemoterapi

2020 ◽  
Vol 5 (3) ◽  
pp. 158
Author(s):  
Nur Amaliah Ahmad ◽  
Laksmi Karunia Tanuwijaya ◽  
Rahma Micho Widyanto
Keyword(s):  
Total Energy ◽  
Cancer Cells ◽  
Design Method ◽  
Orthosiphon Stamineus ◽  
Randomized Design ◽  
The Difference ◽  
Chemotherapy Patients ◽  
The Comparative Study ◽  
One Way Anova ◽  
Serving Size

<div class="Section1"><p><em>Abstrak –</em><strong>Kemoterapi merupakan terapi pengobatan kanker dengan menggunakan obat-obatan sitostatika untuk menghancurkan sel kanker atau menghambat perkembangan sel kanker.Efek samping dari pengobatan kemoterapi berupa anoreksia, mual dan muntah, sehingga dapat mempengaruhi asupan makan pasien dan menyebabkan pasien mengalami malnutrisi. Sus Kering merupakan makanan yang dibuat untuk pasien kemoterapi dengan ukuran kecil namun memiliki kandungan gizi yang tinggi.Penelitian ini bertujuan untuk mengetahui perbedaan kandungan zat gizi makrodan energi total pada sus kering substitusi tepung daun kumis kucing pada keempat formulasi terbaik dengan komposisi tepung terigu: tepung daun kumis kucing masing-masing (P0) 100:0 ; (P1) 90:10, (P2) 85:15, (P3) 80:20. Desain penelitian <em>true experimental</em> dengan menggunakan rancangan acak lengkap dengan menggunakan variabel kontrol dan tiga perlakuan. Ulangan dilakukan sebanyak 3 kali sehingga total sampel sebanyak 12. Hasil penelitian menunjukkan bahwa rata-rata kadar zat gizi dan energi total pada sus kering substitusi tepung daun kumis kucing secara berturut-turut sebagai berikut, karbohidrat 10,30 gram, protein 3,71 gram, lemak 10,18 gram dan energi 146,21 kkal per satu takaran saji atau 25 gram. Hasil analisis statistik uji beda One Way Anova dan Kruskal Wallis menunjukkan tidak ada perbedaan signifikan pada karbohidrat, protein, lemak dan energi (p&gt;0,05). Dapat disimpulkan bahwa tepung daun kumis kucing tidak mempengaruhi kandungan zat gizi makro dan energi total pada sus kering substitusi tepung daun kumis kucing sebagai makanan selingan pasien kemoterapi.</strong></p><p><em>Abstract - </em><strong>Chemotherapy is a cancer treatment therapy by using cytotoxic medicines to eliminate cancer cells or inhibit the growth of cancer cells. Side effects of chemotherapy medication are anorexia, nausea, and vomit that impact the absorption of nutrition and malnutrition to the patients. Choux paste is a food specially designed for chemotherapy patients in small size but have high nutrition. This study aims to investigate the difference of macronutrients content and total energy of chou pastry with Java Tea (</strong><em><strong>Orthosiphon stamineus</strong></em><strong>) based flour with four best formulation that has a composition of wheat flour: Java Tea based flour with the ratio of each (P0) 100:0 (P1) 90:10 (P2) 85:15 (P3) 80:20. This study conducted with a true experimental design that used a completely randomized design method with control variables and three treatments. Repetition is performed three times for 12 total samples. Results are shown that mean of macronutrients level and total energy of chou pastry with Java Tea based flour are as follows, carbohydrate 10,30 grams, protein 3,71 grams, fat 10,18 grams, and energy 146,21 kcal for one serving size or 25 gram. The comparative study of One Way Anova and Kruskal Wallis showed that there are no significant differences in carbohydrate, protein, fat, and energy (p&gt; 0.05). It can be concluded that Java Tea whiskers based flour does not affect macronutrient content and total energy of choux pastry with Java Tea based flour as a snack for a chemotherapy patient.</strong></p><p><strong><em>Keywords </em></strong><em>–</em><em>Tepung daun kumis kucing, Kadar karbohidrat, Protein, Lemak, Energi, Sus kering, Kemoterapi</em></p></div><em><br clear="all" /></em>

scholarly journals 3D Measurement of Human Chest and Abdomen Surface Based on 3D Fourier Transform and Time Phase Unwrapping

Sensors ◽  
2020 ◽  
Vol 20 (4) ◽  
pp. 1091 ◽  
Author(s):  
Haibin Wu ◽  
Shuang Yu ◽  
Xiaoyang Yu
Keyword(s):  
Fourier Transform ◽  
Phase Error ◽  
Three Dimensional ◽  
Image Sequences ◽  
Current Approach ◽  
Individual Characteristics ◽  
Phase Unwrapping ◽  
3D Measurement ◽  
Human Experiments ◽  
The Difference

Monitoring respiratory movements is an effective way to improve radiotherapy treatments of thoracic and abdominal tumors, but the current approach is limited to measuring specific points in the chest and abdomen. In this paper, a dynamic three-dimensional (3D) measurement approach of the human chest and abdomen surface is proposed, which can infer tumor movement more accurately, so the radiotherapy damage to the human body can be reduced. Firstly, color stripe patterns in the RGB color model are projected, then after color correction, the collected stripe image sequences are separated into the three RGB primary color stripe image sequences. Secondly, a fringe projection approach is used to extract the folded phase combined 3D Fourier transform with 3D Gaussian filtering. By the relationship between adjacent fringe images in the time sequence, Gaussian filter parameters with individual characteristics are designed and optimized to improve the accuracy of wrapped phase extraction. In addition, based on the difference between the fractional parts of the folded phase error, one remainder equation can be determined, which is used for time-phase unwrapping. The simulation model and human experiments show that the proposed approach can obtain the 3D image sequences of the chest and abdomen surface in respiratory motion effectively and accurately with strong anti-interference ability.

First-Principles Study of Nanofacet Formation on 4H-SiC(0001) Surface

2014 ◽  
Vol 778-780 ◽  
pp. 201-205
Author(s):  
Keisuke Sawada ◽  
Jun Ichi Iwata ◽  
Atsushi Oshiyama
Keyword(s):  
Surface Energy ◽  
Total Energy ◽  
First Principles ◽  
Atomic Layer ◽  
First Principles Calculations ◽  
Atomic Structures ◽  
First Principles Study ◽  
Energy Variation ◽  
The Difference ◽  
Facet Formation

We perform the first-principles calculations on the 4H-SiC(0001) surface and clarify the mechanism of the facet formation. We first identify atomic structures of single-, double- and quadribilayer steps and find that the single-bilayer (SB) step has the lowest total energy among these three step structures. Then, we reveal that the nanofacet consisting of SB steps is more energetically stable than the equally spaced SB step and the surface-energy variation caused by the difference of stacking sequences of the bi-atomic layer near the surface is an important factor of the facet formation.

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