Уточнить поиск
Результаты 71-80 из 426
Flow Sitometri ile Bazı Ispanak Aksesyonlarının Çekirdek DNA İçeriklerinin Belirlenmesi Полный текст
2018
Murat Deveci | Özcan Yavaş | Nihan Sahin | Metin Tuna
Bu araştırmanın amacı, yurt dışından elde edilmiş olan 53 ıspanak (Spinacia oleracea L.) aksesyonunun flow sitometri ile ploidi düzeylerini belirlemektir. Araştırma verilerine göre; ıspanak aksesyonlarının çekirdek DNA içerikleri arasındaki farklılıkların istatistiki olarak önemli olduğu saptanmıştır. Araştırmada kullanılan ıspanak aksesyonlarının ortalama çekirdek DNA içeriği 2,225 pg/2C (Esfenaj çeşidi) ile 2,059 pg/2C (Matador ve Godir çeşitleri) arasında değişmiştir. Kök ucu meristem dokuları kullanılarak yapılan kromozom sayımlarında analiz edilen tüm bitkilerin 2n=12 kromozoma sahip oldukları ve dolayısıyla diploid oldukları belirlenmiştir. Bu nedenle çalışmada kullanılan aksesyonların tamamının diploid olduğu kabul edilmiştir. 2C DNA içeriklerine göre yapılan kümeleme analizi sonuçlarına göre iki ana küme altında sekiz farklı kümenin oluştuğu görülmüştür. Aksesyonların kümelenmesi çoklu karşılaştırma testinde de benzer sonucu vermiştir. Ispanak aksesyonlarında ploidi seviyelerini belirlemeye yönelik olarak yapılan bu çalışma sonucunda çalışmaya konu olan 53 ıspanak aksesyonu ile ileride yapılacak ıslah çalışmalarında araştırmacılara önemli bir zaman, enerji ve emek tasarrufu sağlayacaktır.
Показать больше [+] Меньше [-]Analysis of Economic Efficiency in Some Irish Farms Using the DEA Approach Полный текст
2018
Nicola Galluzzo
Irish farms are predominately and highly specialized in crops as cereals, protein crops and in dairy productions. The aim of this research was to estimate the economic efficiency in Irish farms part of the Farm Accountancy Data Network (FADN) dataset stratified in function of their own typology of productive specialization since 2004 to 2015 by a quantitative approach such as the Data Envelopment Analysis (DEA). Positive has been the role of inputs as financial subsidies allocated by the Common Agricultural Policy, the first and second pillar, in increasing the economic efficiency of Irish farms. Field crops farms have not had the best results in terms of the economic efficiency even if over the time, in particular during the economic crises 2008-2009, findings have not been stable with significant fluctuations and a sharply decrease of efficiency as a consequence of economic turbulences. Focusing the attention on the research outcomes in all years of investigation comparing also the different typology of farming, mixed farms and farms with animals, such as specialist cattle, sheep, goats and other grazing livestock, have had the highest levels of economic efficiency equal to 100%; by contrast Irish dairy farms have had the modest levels of economic efficiency close to 77%.
Показать больше [+] Меньше [-]Bayburt Koşullarında Organik Olarak Yetiştirilen Bazı Yerel Fasulye (Phaseolus vulgaris L.) Genotiplerinin Bazı Morfolojik ve Agronomik Özelliklerinin Belirlenmesi Üzerine Bir Araştırma Полный текст
2018
Ümit Girgel | Alihan Çokkızgın | Mustafa Çölkesen
Bu araştırma, organik şartlarda seçilmiş bazı yerel fasulye (Phaseolus vulgaris L.) genotiplerinin morfolojik ve agronomik özelliklerini belirlemek amacıyla, Bayburt Üniversitesi, Gıda Tarım ve Hayvancılık Uygulama ve Araştırma Merkezi deneme alanında 2016 yetiştirme döneminde yürütülmüştür. Araştırmada 13 yerel fasulye genotipi ile 3 tescilli çeşit (Önceler-98, Horoz ve Dermason) kullanılmıştır. Çalışma tesadüf bloklarında bölünmüş parseller deneme desenine göre üç tekerrürlü olarak kurulmuştur. Araştırmada, bitki boyu 32,1-44,3 cm, ilk bakla yüksekliği 6,7-11,1 cm, gövde kalınlığı 5,6-8,4 cm, bakla boyu 85,9-120,7 mm, bakla eni 12,5-15,4 mm, bitkide bakla sayısı 10,0-24,1 adet/bitki, baklada tane sayısı 3,5-5,5 adet/bakla, 1000 tane ağırlığı 393,7-545,5 g, dekara tane verimi 128,3-194,3 kg/da arasında değişim göstermiştir. En yüksek tane verimi dermason fasulye çeşidinden elde edilmiş olurken, bunu takiben Önceler-98 çeşidi ve Aydıntepe genotipinin de tane verimi ve bölgeye adaptasyon özelliklerinin iyi olduğu gözlemlenmiştir. Sonuç olarak, incelenen yerel genotiplerden bazılarının bazı morfolojik özellikler ve bitki verimi açısından değerlendirmeye uygun olduğu, ıslah çalışmalarında bir genitör olarak kullanılmalarının faydalı olacağı düşünülmektedir.
Показать больше [+] Меньше [-]Analysis of the Socio-Economic Constraints of Small Ruminants’ Production in West Bank-Palestine Полный текст
2018
Yahya Istaitih | Makbule Nisa Mencet Yelboga
This study analysed the socio-economic constraints facing small ruminants’ production in West Bank Palestine. Therefore, it investigated the sites of Al-thaheryia and Facuoa and included. From primary data collected from different sources, 170 small ruminants’ rearers have been randomly selected. Additionally, two workshops have been implemented to gather both quantitative and qualitative data through discussion and brainstorming. Descriptive statistics; frequency, percentage, mean, standard deviation, Chi-square test and T-test are used to shape the socioeconomic constraints facing by small ruminants rearers. The findings revealed a need for extension system to enhance small ruminants’ productivity.
Показать больше [+] Меньше [-]Türkiye’de Üretilen Organik ve Konvansiyonel Sütlerin Bazı Fizikokimyasal Özellikleri ile Yağ Asitleri Kompozisyonu ve Antioksidan Kapasitesinin Belirlenmesi Полный текст
2018
Bayram Ürkek | Mustafa Şengül
Bu çalışmada Türkiye’de üretilen konvansiyonel ve organik çiğ sütlerin bazı fizikokimyasal özellikleri, yağ asitleri kompozisyonu ve antioksidan kapasitesi üzerine çiftlik üretim tipinin (konvansiyonel ve organik) ve süt toplama zamanın etkisinin ortaya konulması amaçlanmıştır. Araştırmada organik ve konvansiyonel çiftliklerden bir yıl boyunca iki ayda bir 9’ar adet çiğ süt örnekleri toplanmıştır. Organik ve konvansiyonel olarak üretilen sütlerin yağ asidi kompozisyonu, antioksidan kapasitesi, toplam fenolik madde ve bazı fizikokimyasal özellikleri (kurumadde, yağ, protein, kül, titrasyon asitliği (% laktik asit), pH, özgül ağırlık) incelenmiştir. Araştırma sonuçlarına göre konvansiyonel ve organik süt örneklerinin ortalama kurumadde, yağ, protein, kül, özgül ağırlık, asitlik ve pH değerleri sırayısla %12,06-11,97, %3,67-3,50, %3,33-3,34, %0,67-0,66, 1,0381-1,0381 g mL-1, %0,18-0,16 6,67-6,73 olarak belirlenmiştir. Konjuge linoleik asit oranlarının organik sütlerde %1,39 ile %2,87 arasında, konvansiyonel sütlerde %1,67 ile %2,96 arasında değiştiği belirlenmiştir. Sonuç olarak, süt bileşenlerini (kurumadde, yağ, protein ve kül), yağ asidi kompozisyonunu, EC50 ve toplam fenolik madde değerlerinin çiftlik üretim tipinden etkilenmediği ortaya konulmuştur. Diğer taraftan süt yağı, protein, yağ asidi oranları (oleik asit hariç), EC50, inhibisyon ve toplam fenolik madde değerlerinin toplama zamanına bağlı olarak önemli değişimler gösterdiği belirlenmiştir.
Показать больше [+] Меньше [-]Consortium Application of Endophytic Bacteria and Fungi Improves Grain Yield and Physiological Attributes in Advanced Lines of Bread Wheat Полный текст
2018
Ghulam Muhae-Ud-Din | Muhammad Amjad Ali | Muhammad Naveed | Khalid Naveed | Amjad Abbas | Javed Anwar | Muhammad Hammad Tanveer
Increasing human population places pressure on agriculture. To feed this population, two time increase in the current wheat production is needed. Today agriculture is becoming input intensive with more reliance on synthetic fertilizers and agrochemicals to fulfil the feed demand of the growing numbers. Use of synthetic fertilizer since last few years is impacting the soil quality. In this scenario, the use of beneficial endophytic microbes is an attractive strategy to overcome the use of synthetic products. To investigate the effect of consortium application of endophytic bacteria and fungus on plant growth, grain yield moisture status, a pot experiment was conducted in different wheat lines. It comprised four treatments like control, application of bacterial strain Bacillus sp. MN54, fungal strain Trichoderma sp. MN6, and their consortium (Bacillus sp. MN54 + Trichoderma sp. MN6). The effect of consortium application was more prominent and significantly different from the sole application of bacteria and fungus. The results showed that with a consortium application of endophytic bacteria and fungus, there was 28.6, 4.3, -6.3 and -3.7% increases in flag leaf area, chlorophyll content, relative membrane permeability and water content respectively. Consortia of endophytic microbes also resulted in the yield enhancement through the betterment of various yield attributes like number of spikelet’s, grains per spike and grain yield per plant (32.2, 25.8 and 30.8%, respectively). So, consortia of endophytic microbes can greatly promote the progress of plants in dry land agriculture and increase the yield in an environmentally sustainable way.
Показать больше [+] Меньше [-]Recent Trends in Extraction Techniques for High Value Compounds from Algae as Food Additives Полный текст
2018
Saniye Akyil | Işıl İlter | Mehmet Koç | Figen Ertekin
Algae have been considered as a source of high value bioactive compounds including pigments, lipids, fatty acids, polysaccharides, antioxidants and minerals. These compounds serve as a source of nutrition for both humans and animals and as additives in food production. Conventional solvent and/or green extraction techniques are mostly applied to extract these compounds from algae biomass. In this review, paper the most frequently used green extraction techniques such as supercritical fluid extraction, microwave assisted extraction, ultrasound-assisted extraction, pressurized liquid extraction, subcritical water extraction and pulsed electric field extraction were investigated in terms of their process conditions, applications, advantages and disadvantages.
Показать больше [+] Меньше [-]The Effect of Dietary Carob (Ceratonia siliqua) Syrup on Growth Performance, Haematological, Serum Biochemical and Immunological Parameters in Tilapia (Oreochromis mossambicus) Полный текст
2018
Sevdan Yılmaz | Sebahattin Ergün | Ekrem Şanver Çelik
The present study investigated the effects of dietary carob (Ceratonia siliqua) syrup supplementation on growth performance, haematological, serum biochemical and immunological parameters of tilapia, Oreochromis mossambicus. Five isonitrogenous and isoenergetic diets were formulated to contain carob syrup at levels of 0%, 5%, 2.5%, 1.25%, and 0.625%. Fish were fed experimental diets for 60 days. There were no particular differences in weight gain, feed conversion ratio, specific growth rate, red blood cell count, haematocrit ratio (%), serum total protein, albumin, and globulin levels of fish fed experimental diets. However, dietary carob syrup especially with 1.25% incorporation significantly decreased serum glucose, triglyceride, cholesterol levels. The dietary carob syrup especially at 1.25% significantly increased the phagocytic activity, phagocytic index, respiratory burst and potential killing activity. In conclusion, findings of the present study indicate that feeding tilapia with a diet containing 1.25% carob syrup over a period of 60 days might be adequate to improve immune parameters and serum biochemical variables without any adverse effect on growth performance and haematological parameters of fish.
Показать больше [+] Меньше [-]Analysis of Financial Performance in Dairy Enterprises; The Case Study of Konya, Turkey Полный текст
2018
Cennet Oğuz | Aysun Yener
Sustainability and development of the dairy enterprises are dependent on competitiveness. Determination of the performance of the enterprises requires measurement and analyses of the financial performance of the enterprises. The ability of dairy enterprises to continue and grow is dependent on competitiveness. It requires that the financial performance of the farm enterprises be measured and analysed in order for the enterprises to be able to detect the competition power in a healthy manner. The aim of the study is to analyse the financial performance of the dairy enterprises in Konya province by determining the capital structure. Çumra, Karapınar and Ereğli districts constituted 15% of the number of bovine animals, were selected by using sampling method. The number of dairy cattle in these enterprises constituted the main frame of the population the primary data collected from 125 dairy farm enterprises with questionnaire technique through stratified sampling method with 95% confidence interval and error margin of 5%. The capital structure of the enterprises surveyed in the research area was classified according to their functions and the average active capital of the enterprises was calculated as 845,330.85$. 67.87% of the active capital is composed of land capital, 31.70% is composed of fixed enterprises capital and 0.43% is variable working capital. The economic profitability level (EP) was determined as 6.90% and the financial profitability level (FP) indicated the success of the enterprise was calculated as 7.06%. The capital turnover rate, an important indicator in the success and comparison of the enterprises, is 28.22%. As a result, their development and competitiveness are slow, because they do not use enough business and investment capital.
Показать больше [+] Меньше [-]Determination of Listeria monocytogenes and Serotypes in Modified Atmosphere Packed Ground and Cubed Beef Samples Полный текст
2018
Adem Özkiraz | Ali Gücükoğlu
This study was conducted to determine the Listeria monocytogenes’s presence, serotypes and resistance against various antibiotics in modified atmosphere packaged (MAP) ground and cubed beef samples. Five of ground (5/50-10%) and 3 of cubed beef samples (3/50-6%) were identified as L. monocytogenes positive in MAP samples. Eleven L. monocytogenes isolates that obtained from samples being investigated in term of hlyA gene by PCR method have verified that this gene (100%). In serotyping results, 3 of 8 isolate that obtained from MAP ground beef samples were 1/2a, the other 3 isolate was 1/2b and the remaining 2 isolate was 4b. Also, 1 of 3 isolate that obtained from MAP cubed beef samples were 1/2b, the other one isolate was 1/2c and the last one was 4b. One isolate against (9%) ampicillin, 2 isolate against (18.2%) chloramphenicol, 3 isolate against (27.2%) erythromycin, 4 isolate against (36.3%) oxytetracycline and 4 isolate against (36.3%) penicillin G, 6 isolate against (54.5%) tetracycline and 3 isolate against (27.2%) vancomycin was resistant in 11 L. monocytogenes isolates that confirmed by PCR. The L. monocytogenes isolates were found to be resistant to one or more antibiotics in antibiotic-resistance test results. In conclusion, applying of national residue monitoring program by official authority for prevention of intensive antibiotic use in order to prevent the development of resistant strains to antibiotics has great importance.
Показать больше [+] Меньше [-]