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Effect of Net House on Tomato Leaf Miner (Tuta absoluta) (Meyrick) (Lepidoptera: Gelechiidae) Population in Tomato Cultivated in Chitwan, Nepal
2020
Ankit Soti | Rajendra Regmi | Arjun Kumar Shrestha | Resham Bahadur Thapa
This experiment was conducted in tomato field at Agriculture and Forestry University (AFU, Chitwan, Nepal) between October 2016 and May 2017 to evaluate effect of net house on invasive insect species of tomato moth, Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae). The trial was setup with two treatments inside net house and under open conditions and was designed with four replications. The adults of T. absoluta were observed significantly lower numbers inside the net house (1.41 adult/trap) compared to the open condition (24.84 adult/trap). The T. absoluta population increased with rainfall. The marketable yield was significantly higher inside the net house (100.91 ton/hec) due to reduction of damage to tomato fruit (4 ton/hec) by T. absoluta. The initial level of investment was found to be higher inside the net house when compared to open cultivation. In terms of economic analysis in long term aspect only, the net house is a suitable means of pest management against T. absoluta.
Mostrar más [+] Menos [-]Challenges of Melon Processing Among Women Processors in Enugu-Ezike Agricultural Zone of Enugu State, Nigeria
2020
Angela Ebere Obetta | Ridwan Mukaila | Ogochukwu Gabriella Onah | Chukwuemeka Chiebonam Onyia
Processing of melon plays a significant role in the livelihood of rural women as it serves as their major occupation. Despite its significant role, the women processors were faced with some challenges. This study, therefore, identified the challenges faced by women in melon processing in Enugu-Ezike Agricultural Zone of Enugu State, Nigeria. Primary data were collected from 80 respondents using a structured questionnaire coupled with an interview schedule and analysed using descriptive statistics. The results showed that the majority of the women processors were advanced in age, well experienced, do not belong to a cooperative society, and relied strictly on processing melon as their source of livelihood. They had an average income of N286,400 (USD 751.71) per annum. Low capital, poor credit facilities, high transportation cost, price fluctuation, rapid deterioration, low supply of melon, poor storage facilities, high cost of processing machine, and breakage of seed were the identified constraints facing them. The study recommended that the women processors should form a cooperative society which will help in financing and easy marketing of their products. Also, the government should provide financial assistance, good storage facilities, and subsidized melon processing machine to increase efficiency.
Mostrar más [+] Menos [-]Determination of Seasonal Changes on Lipid Content and Fatty Acids of Nemipterus randalli (Russell, 1986) from Mersin Bay
2020
Mısra Bakan | Nahit Soner Börekçi | Deniz Ayas
In this study, the seasonal changes on lipid content and fatty acid levels of Nemipterus randalli from the Mersin Bay have been determined. Total lipid levels were found as 3.17%, 2.12%, 0.63%, and 0.72% in spring, summer, autumn and winter seasons, respectively. The fatty acid composition of this species is composed of 30 fatty acids. Major fatty acids are palmitic acid (C16:0) and stearic acid (C18:0) from saturated fatty acids (SFAs) oleic acid (C18:1n9c) and 11-docosenoic acid (ceteloic; C22:1n11) from monounsaturated fatty acids (MUFAs) and eicosapentaenoic acid (EPA; C20: 5n3), and docosahexaenoic acid (DHA; C22: 6n3) from polyunsaturated fatty acids (PUFAs). The highest level of palmitic acid was detected in the winter season, and the palmitic acid level varied between 15.41% and 20.72% (77.79-433.30 mg/100g). The highest level of stearic acid was determined in the spring season, and its levels varied between 14.75% and 19.14%, and its levels were also determined as 77.95-483.91 mg/100g. Oleic acid from the monounsaturated fatty acids varied between 5.46% and 7.98%, and its levels were found to be 31.98-224.38 mg/100g. Ceteloic acid varied between 5.73% and 7.80%, and its levels were determined to be 33.01-161.11 mg/100g. The EPA levels from the polyunsaturated fatty acids ranged from 4.34 to 5.34%, and its levels were found to be 19.30-137.50 mg/100g. The highest levels of DHA were detected in autumn, its levels varied between 21.09% and 23.00%, and its levels have also been detected as 102.30-604.25 mg/100g. The highest levels of Σn3, Σn6 and Σn9 were found in the spring season. The levels of Σn3, Σn6 and Σn9 varied between 26.73-27.19% (122.89-751.59 mg/100g), 4.19-4.79% (18.63-134.68 mg/100g) and 5.95-9.79% (35.22-247.15 mg/100g), respectively. AI and TI values in N. randalli were found at 0.28-0.36% and 0.33-0.36%, respectively.
Mostrar más [+] Menos [-]Balık Tüketim Eğilimleri, Sinop İli Örneği
2020
Şennan Yücel | Birol Baki | Bünyamin Küçükkoşker
Çalışmada Türkiye ve Karadeniz Bölgesinin önemli balıkçılık yerlerinden olan Sinop il merkezinde balık tüketim tercihlerinin belirlenmesi amaçlanmıştır. Araştırmanın özelliği gereği iadesiz seçim gerçekleştirilmiştir. Araştırmanın birincil verilerini, anket yoluyla elde edilen veriler oluşturmuştur. Verilerin analizinde; betimletici istatistikler, ki-kare uyum testi ve regrasyon analizinden yararlanılmıştır. Araştırmada denek sayısını belirlemek için; n=Npqta2/[(N-1)d2+ pqta2] formülünden yararlanılmıştır Katılımcılardan %58’i balıketinin sağlıklı olduğunu belirtmiştir. En çok tükettikleri etin balıketi olduğunu belirtenlerin oranı sadece %21’dir. Deneklerin tamamına yakını (%94) balığı taze olarak tüketmeyi tercih etmektedir. Haftada en az bir kez balık tüketenlerin oranı sadece %2 iken, en yüksek oran (%48) on beş günde bir tüketimdedir. Deneklerin yarısına yakını (%45) balıketini ızgarada pişirerek tüketmeyi tercih etmektedir. Balıketi tüketenlerin %90’ı deniz balığını tercih ederken, %71’i balık satış yerlerinin bir arada olmasını istemektedirler. Ayrıca deneklerin %49’u balık sakladıklarını belirtmiş ve balık saklayanların %82’isi soğuk muhafaza, %16’sı tuzlama ile balık saklamayı tercih ettiklerini belirtmişlerdir. Soğuk muhafaza yoluyla balık saklayanların %74’ünün geliri 3000 TL ve üzeri gelir seviyesine sahiptir. Tuzlama yoluyla balık saklayanların her gelir grubuna dağılmış olması, yöredeki kadim kültürden kaynaklandığını söyleyebiliriz.
Mostrar más [+] Menos [-]Effects of Different Tillage, Rotation Systems and Nitrogen Levels on Wheat Yield and Nitrogen Use Efficiency
2020
Nihal Kayan | Nazife Gözde Ayter Arpacıoglu | Imren Kutlu | Mehmet Sait Adak
This research was conducted between 2011 and 2015 at research field of Faculty of Agriculture, Eskişehir Osmangazi University for evaluating two tillage methods (conventional and reduced), three crop rotations (wheat-wheat; wheat-fallow; wheat-chickpea) and four N levels (0, 50, 100, 150 kg ha-1). The experimental design was split-split plot with three replicates. Tillage methods were in main plots, crop rotations in subplots and N levels in sub-sub plots. The N concentration of grain and straw harvested from aboveground plant organs was separately determined using by the Kjeldahl digestion method after the plant samples were ground. Then, grain protein content, nitrogen use efficiency (NUE), nitrogen uptake efficiency (NUPE), nitrogen utilization efficiency (NUTE) were calculated. According to results, effects of tillage methods on NUE were unclear. Conventional tillage methods resulted in higher NUPE than reduced tillage in the last three years of the experiment. The NUTE was higher in reduced tillage than conventional in 2011-2012 and 2014-2015. The effects of tillage methods on grain yield were different due to the climatic conditions. Wheat-chickpea rotation had the better results for examined traits in this research. Increasing nitrogen doses increased grain and plant protein rate, however it decreased NUE and NUPE. The effects of nitrogen doses on NUTE were ambiguous. Nitrogen use efficiency and NUPE is traits that can be differed according to changeable grain yield depend on environmental conditions. Therefore, the experiments should be conducted for more than four years for revealed absolute effects both soil tillage method and nitrogen fertilization.
Mostrar más [+] Menos [-]Evaluating The Effect of Some Medicinal Plants (Mentha piperita, Ocimum basilicum, Rosmarinus officinalis, Salvia officinalis) on Whitening of the Permanent Teeth
2020
Meryem Yeşil | Işıl Öztürk | Zeynep Yeşil Duymuş | Mehmet Muharrem Özcan
Nowadays, whitening of stained teeth has become the most popular topic in aesthetic and cosmetic dentistry. Because of the side effects of materials that were used for bleaching, in this study the effects of some plants which were used in Anatolian folk medicine on the treatment of tooth staining were examined. In this study, upper central incisors which were extracted for periodontal reasons were used. The colour values of numbered teeth were obtained and the teeth were immersed into three different essential oils of medicinal plants (Mentha piperita, Ocimum basilicum, Rosmarinus officinalis, Salvia officinalis) for different time periods (1 day, 1 week, 1 month). At the end of the immersion periods, colour measurements of all samples were made and the colour changes were analysed. Obtained data were statistically analysed by using ANOVA and Duncan test. As a result of the variance analysis, plant species and the duration of immersion was found to be statistically significant. Within the limits of this study, we can indicate that tested medicinal plants has a whitening effect by resulting significant change in tooth colour.
Mostrar más [+] Menos [-]Screening and Selection of Media Components for Protease Production by Bacillus sp. EBTA6 Using Plackett–Burman Design
2020
Fikriye Alev Akçay | Ayşe Avcı
In this study, effects of medium components and inoculum size on the protease production by Bacillus sp. EBTA6 that was isolated from a home-made Tarhana sample were investigated. The cell-free supernatant of bacterium cultured on a shaking incubator for 24 h was used to test protease activity as the response. With a total number of 11 factors, 12 different experiments were run and the highest experimental protease activity was measured as 2280.4 U/mL. Results were analyzed statistically by ANOVA and the most efficient factors were detected as yeast extract, dipotassium phosphate, casein, and peptone with a contribution of 93.78, 2.19, 1.96, 1.31%, respectively. For validation of the selected factors, a further experiment was performed by using of yeast extract (9.98 g/L), dipotassium phosphate (1.27 g/L), casein (8.69 g/L), and peptone (9.88 g/L) obtained from the design equation. The experimental response was found as 2411.4 U/mL which was only 5.5% higher than the predicted response showing that the model was applicable.
Mostrar más [+] Menos [-]Bulb Quality and Storability of Onion (Allium cepa L.) as Affected by Varieties and Intra-Row Spacing in Antsokia Gemza, Ethiopia
2020
Birtukan Asmirew | Yohannes Gedamu | Asrat Ayalew
This experiment was conducted in Antsokia Gemza district, Ethiopia in 2017/18 to evaluate the effect of intra-row spacing on bulb quality and storability of onion varieties. A 4×4 factorial experiment with four different varieties (Adama Red, Bombay Red, Melkam and Shendi) and four levels of intra-row spacing (5.00, 7.50, 10.00 and 12.50 cm) was laid on randomized complete block design with three replications. Data were collected on bulb quality attributes and storability and subjected to Analysis of Variance (ANOVA) using statistical analysis system (SAS) computer software 9.1. The mean separation test was done by list significant difference (LSD) test at 5% probability level. Simple linear correlation analyses between and among the different parameters were made using Pearson Correlation Coefficient. Accordingly, most of the parameters were significantly affected by intra-row spacing and variety. Variety Melkam exhibited the highest bulb diameter, bulb length, bulb dry matter content and bulb fresh weight. Melkam and Adama Red were with the lowest weight loss in storage while Bombay Red and Shendi scored the highest weight loss in storage. Most of the bulb quality parameters were significantly highest at the widest intra-row spacing of 10.00 and 12.50 cm. However, there was no significant variation between 7.50 and 10.00 cm intra-row spacing on average bulb weight which is considered as the most important bulb quality parameter for the producers from the market point of view. Weight loss was higher at the widest intra-row spacing for all varieties. Based on the findings of this study, it can be concluded that the bulb quality and storability of onion in Antsokia Gemza district can be optimized through cultivating variety Melkam at intra-row spacing of 7.5 cm.
Mostrar más [+] Menos [-]Mikrokapsüllenen Zeytin Çekirdeği Antioksidan Bileşiklerinin Fiziksel Özelliklerinin Değerlendirilmesi ve Depolama Stabilitesinin Kinetik Modellenmesi
2020
Emine Nakilcioğlu Taş | Semih Ötleş
Bu çalışmanın amacı, zeytin çekirdeği antioksidan bileşiklerinden elde edilen mikroenkapsüllerin su aktivitesi, renk, partikül özellikleri, yığın özellikleri ve rekonstitüsyon özelliklerinin belirlenmesi ve mikrokapsüllerin -20°C, 4°C ve 25°C olmak üzere üç farklı sıcaklıkta 6 ay süre ile depolanmasıyla polifenol ve antioksidan içeriğindeki değişimin kinetik modellemeyle incelenmesidir. Mikrokapsüllerin 0,43 su aktivitesi değerine, az kırmızılık içeren parlak açık sarı renge ve homojen olmayan oyuklu partiküllere sahip olduğu gözlenmiştir. Higroskobik (%32,47) ve yüksek kekleşme özelliğine (%61,32) sahip olduğu, ıslanabilirlik (52 dk) ve dağılabilirliğinin (%34,44) düşük olduğu ve uygun yığın yoğunluğu (0,26 g/cm3) ve sıkıştırılmış yoğunluk (%0,33 g/cm3) değerlerini sergilediği belirlenmiştir. Mikrokapsüllerin akabilirlik (CI:22,65) ve yapışkanlık (HR:1,29) davranışları kabul edilebilir düzeydedir. Ayrıca depolama sonucunda polifenol ve antioksidan içeriğindeki değişimin (yüzey polifenol miktarı ve mikroenkapsülasyon etkinliği hariç) birinci dereceden kinetik modelle en iyi açıklanabildiği bulunmuştur. Her depolama sıcaklığında incelen tüm bileşiklere ait kinetik katsayılar (reaksiyon hız sabiti (k), yarılanma süresi (t1/2) ve Q10 değeri) hesaplanmıştır. Depolama boyunca mikrokapsüllerin polifenol ve antioksidan içeriğindeki korunumun en iyi olduğu sıcaklığın 4°C, en kötü olduğu sıcaklığın ise -20°C olduğu belirlenmiştir. Zeytin çekirdeği antioksidan bileşiklerinden elde edilen mikroenkapsüllerin özellikle 4°C’de depolanan gıdaların hem fonksiyonelliğinin artırılması hem de raf ömrünün uzatılması amacıyla kullanıma uygun olduğu düşünülmektedir.
Mostrar más [+] Menos [-]A Study on Udder Health Management Practices, Reproductive Disorders and Subclinical Mastitis in Buffalo Herds in Coastal Region of Bangladesh
2020
Dibyendu Biswas | SM Hanif | Eaftekhar Ahmed Rana | AKM Mostafa Anower
Mastitis is an economically important disease of intensive buffalo dairy farming worldwide. Detection of subclinical mastitis (SCM) is important for its management and control. The purpose of this study was to estimate the prevalence of reproductive disorders, SCM and udder health management practices in the buffalo dairy farms of Bhola District, Bangladesh. Data on animal demographics, reproduction status, daily milk yield and status of California Mastitis Test (CMT) result were recorded. A total of 402 buffaloes were observed in two farms at Bhola district and among them 70 milking buffaloes were randomly selected for CMT. The overall prevalence of SCM in buffalo was 20.0%. Young age group of buffaloes was more susceptible for SCM and it was not significant difference. Parity and stage of lactation have no any effect on SCM. However, abortion case was more susceptible to SCM than other diseases but not any significant difference. During milking the milkers never use any antiseptic solution for washing the udder and never use any feed supply during milking. Among the isolated organisms Staphylococcus spp. and E. coli were found more frequent in the study area and gentamicin and ciprofloxaclin were most sensitive to the isolated organisms. From this study it was concluded that buffalo’s udder was very resistance to SCM infection and udder management practice was very poor. Common antibiotics were resistance to isolated organisms from SCM case. Gentamicin and ciprofloxacin were found more susceptible against all four isolated organisms.
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