خيارات البحث
النتائج 221 - 230 من 676
Quantitative Constituents Analysis of Rice Mill Wastewater النص الكامل
2020
Motaharul Islam | Taslema Nasrin | Mosiur Rahman | Mofizul Islam | Tushar Kanti Ray
In the present world, climate change is a mass talked issue. Because of climate change, humans and animals are under the risk of threatening. The scientist has pointed out that main reasons for climate change are waste. Waste is generated from household chores and industries, factories etc. that are affecting the balance of the environment in many ways. This waste may be of various types such as solid, liquid, gaseous etc. Therefore, the study was taken to assess the chemical components contain in wastewater in Dinajpur Sadar, Bangladesh. This study was aimed to evaluate the chemical compositions of the generated wastewater including comparison with the groundwater. The data concerning to the rice mill waste water in Dinajpur, Bangladesh was obtained from individual field visits by interviewing with owner and worker in the rice mills. The wastewater samples were collected randomly from different rice mills. A laboratory experiment was performed to determine the chemical constituents of the wastewater sample. The wastewater contained of pH(6.11-6.18), EC(181.47-185.23 µScm-1), Na(26.19-28.89 mgl-1), Ca(45.41-51.26 mgl-1), Mg(47.12-49.8 mgl-10), K(184.7-191.3 mgl-1), TDS(45.94-47.96 mgl-1), HT(306.7-332.33 mgl-1), S(11.05-13.25 mgl-1), Cl-(522.45-526.182 mgl-1), HCO3-(5.12-6.99 mgl-1), DO(0.46-0.53 mgl-1), P(17.01-21.54 mgl-1). The obtained concentration of Ca, EC, pH, Na and HCO3- were within the reported range of groundwater in Dinajpur, Bangladesh. The concentration of Cl-, K, P, Mg and hardness in the wastewater were above the concentration of reported groundwater in Dinajpur, Bangladesh. On the other hand, the concentration of TDS in the wastewater was less than the reported concentration of groundwater in Dinajpur, Bangladesh.
اظهر المزيد [+] اقل [-]Fertility Status and Spatial Distribution of Soil Properties for Tobacco Growing Lands in Tokat Province النص الكامل
2020
Hikmet Günal | Elif Günal
In this study, a total of 202 surface (0-20 cm) soils were collected from the lands of the producers who made contractual production with private companies in the villages where tobacco cultivation is intensively carried out in the Erbaa district of Tokat province. Basic soil properties, macro phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and sodium (Na) and micro nutrient (Fe), zinc (Zn) copper (Cu) and manganese (Mn) concentrations of soil samples were determined. Spatial distributions of clay content, pH, EC, calcium carbonate, macro and micro nutrient concentrations of tobacco growing lands were modeled using geostatistical methods and spatial distributions were mapped. The coordinates of the sampling locations were recorded using a precise GPS. Soils were mostly neutral and slightly alkaline. Neutral soil pH is desired for sustainable tobacco production. Plants may not be able to uptake some of nutrients in soils with moderate alkalinity. In this case, the use of acid character fertilizers is recommended. All of the macro nutrients are at sufficient levels in the tobacco growing lands. Copper and iron concentrations were at sufficient levels in all fields. Plant available manganese was sufficient in almost half of the sampled lands, while it was insufficient in the other half. Available zinc concentration was well below the sufficient level in most of the lands. In order to increase the production to the desired level, fertilizers should be applied based on the plant requirement and soil analysis results. The registration of the soil sampling locations provides an opportunity to create a very useful database for researchers, producers and suppliers who want to understand how the quality of the tobacco growing lands has changed over time.
اظهر المزيد [+] اقل [-]Application of Modern Techniques in Animal Production Sector for Human and Animal Welfare النص الكامل
2020
Wajid Ali | Moazam Ali | Muhammad Ahmad | Sadia Dilawar | Asia Firdous | Anam Afzal
In this epoch, the tremendous increase in the world population accounts for the continuous supply of foodstuff. According to the FAO report, the global population is probable to cross the 9 billion in 2050. With constant population pressure, we are going to face the challenges of food shortage globally about agriculture. The animal production field provides a major share in the supply of foodstuff to compensate for the stress of food scarcity. By adopting the advanced technologies in the animal production field, its productivity can enhance significantly. Innovation in technology has made work easier with the development of different software and the internet. Technologic development made farmers work more contentedly hence, ultimately amplifying the animal production, proficiency, profitability as well as providing a prompt way for livestock sustainability. The animal production consists mainly of 8 factors including 3 major (animal breeding and genetics, animal nutrition, and reproductive performances) and 5 minor (health observation, farm management, water, manure, machinery, environment control, milking automation and electronic identification). The use of advanced technologies in these sectors is found to be fluent by intensifying the ratio of sustainable livestock farming and the welfare of mankind in terms of food security. In this review, innovative tactics and techniques for animal production are potted with positive research results and their drawbacks as well. The use of innovative technologies in their respective fields is close to taking control of whole world manufacturing under its hand to accomplish the world prerequisite regarding food scarcity.
اظهر المزيد [+] اقل [-]Evaluation of Protein Profiles, Bioactivity, Allergenicity and Toxicity of Peptides Generated After in silico Digestion of Common Wheat and Einkorn Wheat النص الكامل
2020
Pelin Sultan Perçin | Sibel Karakaya
The belief that ancient wheat is more beneficial than common wheat has been growing trend in recent years among the consumers. The present study aims to compare bioactive peptide, allergen peptide and toxic peptide generation after gastrointestinal digestion of modern wheat (Triticum aestivum) and ancient wheat, einkorn (Triticum monococcum var. monococcum), using in silico tools. The primary sequences of both kinds of wheat were obtained from BIOPEP-UWM and UniProtKB/Swiss-Prot database. In silico digestion was applied using BIOPEP-UWM online tool. For the simulation of gastrointestinal digestion pepsin (pH 1.3) (EC 3.4.23.1), trypsin (EC 3.4.21.4), and chymotrypsin (EC 3.4.21.1) were selected and analyzed. Homology analysis was performed for each protein sequences using EMBOSS Needle program. Toxic and allergen peptides were predicted using ToxinPred online tool and Allergen FP v.1.0. The results showed that einkorn and common wheat proteins exhibited similar properties including high similarity rate (58.72-87.40%) indicating the percentage of matches between the two sequences and the identical bioactivities for peptides generated after digestion. Most of the bioactive peptides were dipeptides and the majority of them displayed more than one bioactivities including ACE inhibitory, DPP IV inhibitory or antioxidant activity, etc. Allergen peptides generated after in silico digestion were found to be similar for both kinds of wheat. In silico gastric digestion of einkorn and wheat caused toxic peptides production, but they were disappeared after in silico intestinal digestion. In conclusion, although there is a perception related to the Einkorn that is healthier than common wheat, in silico digestion of common wheat and einkorn did not support this perception.
اظهر المزيد [+] اقل [-]Comparison of Egg Quality Traits of Atak-S Hens Kept in Different Rearing Systems النص الكامل
2020
Dilek Şentürk Demirel | Ramazan Demirel
This study was conducted to compare the internal and external quality characteristics of the eggs of Atak-S laying hybrids kept in enriched cage and free-range rearing systems. In the study; 400 Atak-S hybrids, 31 weeks of age were fed for 6 weeks of experimental period. Throughout the experiment, with weekly intervals, 15 eggs of each group were collected from the laying hens kept in both systems for determination of the quality of the exterior (egg shape index and egg shell thickness) and interior (albumen and yolk width, height, yolk height and yolk colour). At the end of the experiment, there were statistically significant differences between groups for Haugh unit (wk. 2), albumen index (wk. 6), egg shell rate (wk. 1, 2, 3), egg shell thickness (wk. 6), yolk colour for L (wk. 3) and for a (wk. 1, 3). However, there were no significant differences between groups for other weeks and mean values, egg weight, shape index and yolk index.
اظهر المزيد [+] اقل [-]A Calibration Study for Sensor-Based In-Season Nitrogen Management of Irrigated Winter Wheat النص الكامل
2020
Erdinc Savaşlı | Oğuz Önder | Ramis Dayıoğlu | Didem Özen | Suat Özdemir | Yaşar Karaduman | Özgür Ateş | Melih Özsayın
This study was conducted at Transitional Zone Agricultural Research Institute in Eskisehir, in 2017-2019 growing seasons. In the study, responses of four winter wheat cultivars (Atay85, Hat 31, Yunus and Nacibey) to nitrogen fertilization under irrigation conditions were compared with vegetation indices based on spectral reflection and In- Season Estimates of Yield calculated from these indices. GreenSeekerTM (NTech Industries, Inc., Ukiah,CA) hand-held sensor was used for this purpose. The experimental layout were used 0, 4, 8, 12, 16 and 20 kg N/da nitrogen rates 2 factor factorial in randomized complete block design in the experiment. Vegetation indices (NDVI) were obtained at growth stages Zadoks2,4, Zadoks3,0, Zadoks3,1 and Zadoks3,2. Zadoks3,0 (stem elongation) was found to be the most realistic reading time. A comparison of the system with traditional farmer applications, based on the average of 3 experiment fields, the new system was shown to give similar yields with 2,8 kg/da less N in the spring (ZD3,0), showing its economically promising value. The sensor application is determined to be 2% more economically effective than farmer application. Economic nitrogen dose respectively Atay85, Hat 31, Yunus and Nacibey was determined as the nitrogen dose 12,6 kgN/da, 14,1 kgN/ da, 14,4 kg N/da and 17,9 kgN/da.
اظهر المزيد [+] اقل [-]Trace Elements Concentrations and Human Health Risk Evaluation for Four Common Fish Species in Sinop Coasts (Black Sea) النص الكامل
2020
Ayşe Gündoğdu | Saniye Türk Çulha | Fatma Koçbaş
In the study, Trachurus trachurus, Engraulis encrasicolus, Merlangius merlangius euxinus, and Mullus barbatus from along the coast of Sinop were analysed for the content of copper (Cu), zinc (Zn), lead (Pb), cadmium (Cd), iron (Fe), nickel (Ni) and aluminium (Al) in the muscle. Zn, Pb and Cd concentrations were determined to be lightly higher than the acceptable rates in fish samples. The provisional tolerable daily and weekly intake of trace metals in our work were all under than the limits set by the Food and Agriculture Organization/World Health Organization, while for Cd, only M. barbatus was higher than FAO limits. E. encrasicolus and M. barbatus had the highest values for the collected total target danger section, but they did not posture a potential hazard within the diet of local residents. For carcinogenic and non carcinogenic risk assessment, the results were lower than the admissible rate of EPA. In the four fish species in the work, the Target cancer risk values of Ni were greater than 10-4, whereas the Target cancer risk values of Pb were smaller than 10-6. According to these results, it is thought that the Ni concentration in fish does pose a carcinogenic risk due to long-term and continuous consumption.
اظهر المزيد [+] اقل [-]Chicken Reproductive Performance in Ethiopia: Review النص الكامل
2020
Sisay Fikru Mersha | Ewonetu Kebede Senbeta
To improve the reproductive performance; several scholars conducted research in different parts of Ethiopia on indigenous, crosses and exotic chickens. However, there were inconsistencies among the various studies. This review was, therefore, conducted to assess the reproductive characteristics of indigenous, exotic and their crosses. Under scavenging system, the indigenous chickens are characterized by less clutch size (2.7-4.2 per year), good hatchability rate (59.6-93.2%), higher mortality rates (25.3-61.15), and reach sexual maturity at advanced age (19.6-26.8 weeks for male; 19.7-34.05 weeks for female). The age at first mating and laying recorded for exotic and their crossbreeds were nearly similar to those of indigenous chickens. The hatchability rate of crossbreed chickens are varying from 54.7-78.7% and it is by far lower for exotic breeds. The exotic (18.83-53%) and crossbreed (9-40%) chickens are relatively better in survival rate than local chickens. Overall, the local chickens are better for their hatchability and have reproduction performance than exotic and crossbreed chickens. From this review, it is concluded that there is variation in chicken reproductive performance of the same breed in different parts of the country.
اظهر المزيد [+] اقل [-]Determination of Antifungal Effects of Some Berry Fruits Ethanol Extracts by Disc Diffusion Method النص الكامل
2020
Oktay Tomar | Gökhan Akarca | Elif Başpınar
There are many natural growth area in Turkey and utilizability is increasingly in different areas. Berry fruits involve several species such as grape (Vitis spp.), currant (Ribes spp.), rosehip (Rosa spp.), strawberry (Fragaria spp.), raspberry (Rubus spp.), pomegranate (Punica spp.), blackberry (Rubus spp.), bilberry (Vaccinium spp.), mulberry (Morus spp.) and cornelian cherry (Cornus spp.). Berries are soft fruits that turn from red to blue or black. They contain a good source of vitamins and minerals, and they have various phytochemical compositions that relevant to consumer health. Different varieties of berries contain quite variable concentrations of ascorbic acid, folic acid, anthocyanin, flavonol, ellagitannins and many diversity of hydroxybenzoic acid. Berries have antioxidant, antimicrobial, antifungal and anticarcinogenic properties due to rich content of phytochemical. In this study, Antifungal effect of ethanol extracts obtained from strawberry, raspberry, pomegranate, blackberry, bilberry, mulberry and cornelian cherry against 7 different subspecies of Penicillium, 6 different subspecies of Aspergillus and Mucor racemosus, Botrytis cinerea, Geotrichum candidum, Cladosporium claudosporioides, Rhizopus nigricans species were determined by using disk diffusion method. As a result of the research; It was determined that 9 different samples had antifungal effect on 18 different mold species at various rate. The highest antifungal effect was observed with 24.65 milimeter zone diameter against Mucor racemosus in pomegranate peel extract. This value was followed by blackberry extract against Penicillium glaucum and Penicillium chrysogenum with 20.54 and 20.03 milimeter zone diameter, respectively. It was concluded that the lowest antifungal effect on mold species apart from Aspergillus flavus in blue bilberry extract.
اظهر المزيد [+] اقل [-]An Investigation on Determination of Seed Characteristics of Some Gluten-Free Crops (Amarantus mantegazzianus, Chenopodium quinoa Willd., Eragrostis tef [Zucc] Trotter, Salvia hispanica L.) النص الكامل
2020
Zeynep Dumanoğlu | Hakan Geren
To meet the nutritional requirements required for human and animal nutrition due to climatic changes, research on determination of rich in nutrients and quality, products with high resistance to adverse environmental conditions and their possibilities for growing and reproduction are carried out. This research was carried out between 2018-2019. As a material, seeds belonging to the amaranth (Amarantus mantegazzianus), chia (Salvia hispanica L.), quinoa (Chenopodium quinoa) and teff (Eragrostis tef [Zucc] Trotter) plants were studied. Some characteristics of these seeds were determined such as shape, size, mean arithmetic and geometric diameter, sphericity and thousand grain weight. According to the data obtained; the highest average length (1.140 mm), width (1.080 mm) and surface area (0.930 mm2) of the seeds of the quinoa seeds compared to other seeds; the tambourine seeds had the lowest average length (0.540 mm), width (0.300 mm) and surface area (0.130 mm2) values. In terms of thousand grain weights, the seeds of the quinoa plant are the heaviest seeds with 3.3600 g; the lightest seeds were determined to belong to the tambourine seeds with 0.0028 g.
اظهر المزيد [+] اقل [-]