خيارات البحث
النتائج 41 - 50 من 260
Impact of Brewery Waste Sludge on Sorghum (Sorghum bicolor L. Moench) Productivity and Soil Fertility in Harari Regional State, Eastern Ethiopia
2017
Nano Alemu Daba | Abduletif Ahmed | Muktar Mohammed
The study was conducted on farmers' field in sofi district of Harari Regional State during 2013/2014 main cropping season, eastern Ethiopia, to investigate the impact of brewery sludge on sorghum production and soil fertility. The treatments comprised seven levels of brewery sludges (0, 2.5, 5.0, 7.5, 10.0, 12.5 and 15.0 t ha-1) and NP inorganic fertilizer at recommended rate, arranged in randomized complete block design with four replications. Application of brewery sludge at 15 t ha-1 significantly increased the yield and biomass yield of sorghum by 79 and 85% over control and by 57 and 67% over NP application, respectively. There was no effect of brewery sludge application on heavy metals concentrations in soil after crop harvest, compared to international standard tolerable level. Co and Se levels were high in the control as well as in the soils treated with brewery sludge indicating the already high concentration of these heavy metals in the soils of the area. Plots, which received higher brewery sludge application, resulted in decreased or less percentage of grain nitrogen content showing the independence of grain protein content on lower brewery sludge level. The nitrogen uptake by sorghum grain, straw and the total was maximum (52.68, 44.25 and 79.03 kg ha-1, respectively) with the application of brewery waste sludge at 10 and 15 t ha-1 which were significantly higher than the other brewery sludge and NP mineral fertilizer applications.
اظهر المزيد [+] اقل [-]Sivas Kent Merkezinde Tavukçuluk Ürünlerinin Tüketimi ve Tüketime Etki Eden Faktörler
2017
Hüdaverdi Bircan | Hasan Eleroğlu | Rahim Arslan
Bu çalışmada, Sivas kent merkezinde tavukçuluk ürünleri tüketim değerlerini ve bunun üzerine etki eden faktörleri belirlemek amacıyla 461 aile ile yüz yüze anket uygulaması yapılmıştır. Katılımcıların %85,5’i aktif yaş grubu olarak kabul edilen 18-54 yaş aralığında yer almaktadır. Lise ve Yüksekokul mezunlarının toplamı %68,7 olarak bulunmuştur. Aylık gıda gideri bakımından gelir grupları arasında gözlenen farklılık önemli, ortalama aylık gıda gideri 595,44 TL olarak hesaplanmıştır. Aylık gıda giderleri içerisinde tavukçuluk ürünlerin oranı bakımından da gelir grupları arasında önemli farklılıklar belirlenmiş olup, katılımcıların ortalaması %10,49 olarak belirlenmiştir. Aylık hane halkı yumurta tüketim değerleri bakımından gelir gruplarında gözlenen farklılık önemli, hane halkı aylık ortalama yumurta tüketimi 34,47 Adet/Ay, kişi başına yıllık yumurta tüketimi 123,40 Adet/Yıl olarak hesaplanmıştır. Aylık hane halkı tavuk eti tüketim değerleri bakımından gelir grupları arasında gözlenen farklılık önemli bulunmuş, aylık hane halkı tavuk eti tüketimi ortalama 4,13 Kg/Ay olmasına karşılık, kişi başı yıllık tavuk eti tüketim değeri ortalama olarak 14,89 Kg/Yıl olarak belirlenmiştir. Tavuk eti tüketimi üzerine Aile gelir seviyesi, Aile birey sayısı ve meslek grupları etkili olurken, yumurta tüketimi üzerine bu faktörler ile birlikte eğitim düzeyleri de etkili olmuştur.
اظهر المزيد [+] اقل [-]Fatty Acid Composition and Antioxidant Activity of Tricholoma Imbricatum and T. Focale
2017
Erhan Kaplaner | Mehmet Hüseyin Singeç | Mehmet Öztürk
Edible mushrooms are one of the important food source because of their tastes, and having high concentration of fatty acids and the other nutrients. In this study, fatty acid composition and antioxidant properties of Tricholoma imbricatum and T. focale were determined. The fatty acids were analysed by GC, and GC-MS while the antioxidant activity was tested using five complimentary methods; namely, β-carotene-linoleic acid, DPPH scavenging, ABTS scavenging, CUPRAC and metal chelating assays. Eight fatty acids were determined in hexane extract, and oleic acid was the major fatty acid with 46.4% and 35.0%, respectively. Palmitic acid (12.8%, and 5.12%) and lineloic acid (28.2% and 31.0%) were also detected in high amounts. In DPPH.scavenging and ABTS·+ scavenging assays, the methanol extract of T. imbricatum (IC50: 0.12±0.01 mg/mL for both assay) showed better antioxidant activity than those of T. focale (IC50>0.8±0.01, and IC50: 0.21±0.01 mg/mL). All extracts of T. focale exhibited good activity in β-carotene-linoleic acid assay while only the hexane extract of T. imbricatum showed activity. Both mushroom indicated moderate in cupric reducing power. Since the mushrooms are nontoxic and edible, both can be used in food industry as preservatives.
اظهر المزيد [+] اقل [-]Effect of Climate Variability on Crop Income in Central Ethiopia
2017
Arega Shumetie Ademe | Belay Kassa | Degye Goshu | Majaliwa Mwanjalolo
Ethiopian agriculture is a vulnerable sector from effects of climate variability. This study identified how strong is the effect of climate variability on smallholders’ crop income in Central highlands and Arssi grain plough farming systems of the country. The unbalanced panel data (1994-2014) of the study collected for eight rounds analysed through fixed effect regression. The model result shows that successive increment of crop season rainfall keeping the temperature constant has negative and significant effect on households’ crop income in the study area. The crop income responds similarly for temperature increment if the rainfall remains constant. Given this, simultaneous increment of the two climate related inputs has positive and significant effect on crop income. Other variables like flood, frost, storm, and rainfall inconsistency in the onset and cessation time affected households’ crop income negatively and significantly. Similarly, draught power and human labour, which are critical inputs in the crop production of Ethiopian smallholders, have positive and significant effect on crop income as to the model result. Thus, this study recommended that there should be supplementing the rainfall through irrigation, check dam and other activities to have consistent water supply for the crop production that enable smallholders to collect better income. Additionally, negative effect of temperature increment should be curved through adopting long lasting strategies like afforestation.
اظهر المزيد [+] اقل [-]The Effects of 1-Methylcyclopropane (1-MCP) and MAP treatments on Quality Parameters of “Hicaz’’ Pomegranate Cultivar
2017
Fatih Cem Kuzucu | Mustafa Sakaldaş | Tolga Sarıyer
Pomegranate has been recently considered as a significant fruit for human health and demanded year-long apart from two-month standard harvest period. To extend market supply durations over longer periods, various methods and treatments should be applied to pomegranates to preserve quality parameters throughout different storage durations. The present study was conducted at cold storages of ÇOMÜ Agricultural Faculty to investigate the effects of 1-Methylcyclopropane (1-MCP) and MAP (LDPE, 20 mµ) treatments on quality attributes of ‘Hicaz’ pomegranate cultivar. Experimental materials were treated with two different doses (625 and 1250 ppb) of 1-MCP alone and combined with MAP (625 ppb + MAP and 1250 ppb + MAP) and stored at 3 different storage durations (40, 80 and 120 days). All fruits, including control group, were stored at 6.5-7.5°C temperature and 85-90% relative humidity. At the end of each storage period, fruits were subjected to weight loss (%), Total soluble solids (TSS) content (%), titratable total acidity (TTA) (%g), pH, grain color (a value), decay ratio (%) analyses and assessments were performed for these quality and biochemical characteristics. Both Doses of 1-MCP alone and combined with MAP treatments were found to be more efficient in decelerating the adverse effects on rotting, perishes and other quality parameters, however there were not significant differences between two doses of 1-MCP. Therefore, MAP or 625 ppb 1-MCP treatments alone or combined with MAP treatments can be recommended for better preservation of quality parameter throughout the storage of pomegranates.
اظهر المزيد [+] اقل [-]Effects of Dietary Starch and Crude Protein Levels on Milk Production and Composition of Dairy Cows Fed High Concentrate Diet
2017
Mustafa Güçlü Sucak | Uğur Serbester | Murat Görgülü
Effects of two dietary levels of starch and crude protein on performance of dairy cow fed low roughage level (70:30 concentrate to roughage) were investigated. Twenty eight Holstein cows were randomly assigned to one of four dietary treatments in a 2 x 2 factorial arrangement. Factors were two dietary level of starch (14% and 22%) and crude protein (15% and 18%). Wheat straw was used as sole roughage source. The study was continued 6 weeks. Dry matter intake was not affected (P>0.05) by the dietary treatments in the study. Milk and protein yield (kg/d) were higher (P
اظهر المزيد [+] اقل [-]Antimicrobial and Antioxidant Properties of Phosphates Used in Meat Products
2017
Azim Şimşek | Birol Kılıç
Phosphates are widely used as food additives in meat products to increase the water-holding capacity, reduce the cooking loss and improve the textural properties. Furthermore, phosphates protect aroma and accelerate the formation of cured meat color as well as having antioxidant and antimicrobial effects. Many research about using phosphates in meat products showed that increasing chain length of phosphates improves antioxidant and antimicrobial effects. It has been stated that vacuum or modified atmosphere packaging, the use of phosphates with natural antioxidants and encapsulation of phosphates are useful approaches to enhance the antioxidant effects of phosphates. It has been reported that irradiation, vacuum or modified atmosphere packaging, storage at low temperature and the use of the salt provide strong synergistic effect on the antimicrobial properties of phosphates. In this review, researches about antioxidant and antimicrobial properties of phosphates and suggestions for the meat industry about industrial applications of phosphates are presented.
اظهر المزيد [+] اقل [-]Quality Characteristics of Frankfurters Formulated with Apricot Pomace Obtained from Apricot Juice Processing
2017
Çilem Purma Adıbelli | Meltem serdaroglu
In this study the effects of dried apricot pomace (AP) on the technological, nutritional and sensory quality of frankfurters were investigated. Frankfurters formulated with 5% AP showed better quality compared to the addition of 10 and 15% AP. Protein and fat content decreased as the concentration of added AP was over 5%. AP addition resulted in lower pH and energy values. Frankfurters formulated with AP had higher cooking and process yield values. AP addition resulted with decrement in lightness and increment in yellowness of samples. 5% addition of AP resulted in good sensory scores. The results indicate that apricot pomace could be an effective functional ingredient in emulsion type meat products.
اظهر المزيد [+] اقل [-]Determination of Yield and Quality Performances of Soybean Cultivars in Different Maturity Groups under Main Crop Conditions of Nigde Region
2017
Sevgi Çalışkan | Ramazan İlhan Aytekin
Yield and quality performances of 27 soybean cultivars were evaluated in two years field experiment between 2015 and 2016 at the Experimental Farm of Faculty of Agricultural Sciences and Technologies, Nigde Omer Halisdemir University, Nigde, located in the Central Anatolia Region. The field experiments were laid out in the randomized complete block design with three replications in each year. The main phenological stages of development such as time to emergence, flowering, time to pod formation and time to maturity were determined as calendar days. Plant height, the first pod height, numbers of branch, pod and seed per plant, number of seed per pod, 100-seed weight, protein content, oil content and seed yield per decar were determined as yield and quality parameters. The results of two-year study revealed that the soybean cultivars differed significantly for all characters studied under Nigde conditions. It was also observed that yield and quality performances of cultivars fluctuated in years. Average seed yield values of cultivars were ranged from 135.2 kg/da-1 (Inton-I. maturity group) to 295.8 kg/da-1 (Adasoy-IV maturity group) in 2015 and 2016. In two years mean, the cultivars Adasoy, Sa-88 and Nova were determined as the most promising genotypes for main crop production in Nigde conditions.
اظهر المزيد [+] اقل [-]Management Model of Lakes as a tool for planning the remediation of Suat Uğurlu Lake
2017
Bilge Aydın Er | Tolga Ayeri | Fulya Aydın Temel | Nurdan Gamze Turan | Yüksel Ardalı
Ecological processes that occur in a lake depend on the physico-chemical (abiotic) and biotic factors of the system and the interrelations between them. It can be concluded that the current nutrient loadings from both point and non-point sources are cause to increase eutrophic case over the years. This study indicate that the sustainable utilization of reservoir in combination with proper wastewater treatment plant and controlled use of pesticides has a potential to reduce the current nutrient loadings into Suat Uğurlu Lake. The estimated nutrient reductions that could be achieved from the management scenario would be enough to revert the lake from mesotrophic situation to trophic state. The reduction of nutrient loadings into Suat Uğurlu Lake could be achieved through the practice of Integrated Water Resource Management (IWRM), through good management. However, as long as pertinent issues of urban poverty, watershed management and public awareness and involvement in water related issues are not addressed, trophic in Suat Uğurlu Lake will remain a problem.
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