Affiner votre recherche
Résultats 461-470 de 487
Effect of Industrial and Domestic Processing Techniques On the DNA Degradation of Anchovy Texte intégral
2021
Elif Tuğçe Aksun Tümerkan
Food fraudulent activities have become a serious issue over the world recently. Seafood products have trading and profitable potential in Turkey owing to the abundance of fisheries and other species. While morphological features are commonly used for species identification in raw seafood products, this identification does not meet the correct classification in cryptic species and processed seafood products. Molecular techniques have been utilized for species authentication in processed seafood items successfully. In this study, the effect of different processing techniques on the DNA quality and DNA degradation isolated from raw and processed anchovy was investigated. Anchovy is one of the important species in both fisheries activities and processing and consumption in Turkey. For this aim, DNA was isolated from processed anchovy groups and un-processed anchovy groups as control by the same extraction methods and the quality of DNA was compared among the groups. The most common processing techniques, frying, baking, smoking, roasting, baking and grilling were applied to anchovy. The results revealed that not only different thermal processing but also treatment with acid and salt cause DNA degradation and quality loss of DNA parameters which are essential for authentication of species and traceability for public health.
Afficher plus [+] Moins [-]Cover and Table of Contents Texte intégral
2021
Editoral Editoral
Production Efficiencies of the Nigerian Agricultural Insurance Corporation (NAIC) Insured and Non-NAIC Insured Livestock Farmers in Kwara State, Nigeria Texte intégral
2021
Ojetunde Babatunde Stephen | Emmanuel Egbodo Boheje Odum | Adewumi Olaniyi Matthew
This study used structured questionnaire to randomly collect data from livestock farmers insured under the NAIC scheme and their counterparts not under the NAIC scheme in Kwara State. The study comparatively examined their socio-economic characteristics and production efficiencies using The Stochastic Frontier Analysis and t-test. Results from the study showed that not enough youths participate in livestock production in the study area and it is a male dominated activity. A lot of non-beneficiaries of the NAIC intervention scheme are not members of cooperatives and losing out in the benefits of cooperative membership. The insured farmers are more efficient compared to those that were not insured with both having potentials for increasing their efficiency of production at the moment. The study therefore recommend that youths of ages 35years and below be encourage and provided some incentives to participate in livestock farming as well as women to check the gender imbalance of male dominance. Awareness of NAIC intervention schemes is created for livestock farmers who are not registered for the scheme while beneficiaries are made ambassadors of the scheme to have it promoted to non-beneficiaries. Livestock farmers that do not belong to any cooperative are recommended to form or belong to one so as to access the benefits of belonging to a cooperative group. The study also recommends that stakeholders in the Nigerian Agricultural insurance subsector develop strategies that will encourage much participation in their insurance interventions and also create more awareness among farming households to encourage participation in the program.
Afficher plus [+] Moins [-]Changes That May Occur in Temperature, Rain, and Climate Types Due to Global Climate Change: The Example of Düzce Texte intégral
2021
İsmail Koç
Global climate change is defined as a process that affects all living things and ecosystems globally and is claimed as the most critical problem of the current century. Turkey, which is shown as one of the most affected countries by this process, is among the “countries at risk.” It is stated that the temperature will increase throughout the country until 2100, and this increase may reach 6 ºC. In order to determine the possible effects of global climate change, it is necessary to predict how the climate structure and basic parameters may change. From this point of view, this study is aimed to determine the change of temperature and precipitation, climate types (according to De Martonne, Lang, and Emberger climate classification) which are the most critical climate parameters until 2050 and 2070 in Düzce, one of the important cities of our country. The current situation and possible changes in 2050 and 2070 have been compared using RCP 4.5 and RCP 8.5 scenarios. As a result of the study, the temperature, precipitation, and related climate types would change significantly throughout the province of Düzce, and this change will show itself as a significant temperature increase and change in precipitation regime. In addition, a shift in climate types towards continental climate types is predicted until 2070. In order to avoid the destructive effects of global climate change, it is recommended to take measures on a sectoral basis.
Afficher plus [+] Moins [-]Evaluation of Different Land Preparation Techniques for Preparing Medium Textured Soil in Rice Production under Agro-Ecological Conditions of Sheikhupura-Pakistan Texte intégral
2021
Usman Hassan | Muhammad Shahbaz | Muhammad Saleem Kashif | Liaqat Ali | Muhammd Tariq Chaudhary | Wardah Qamar
Tillage is an important factor affecting different soil properties and crop yields. Tillage relates to applying forces to soil using different implements for preparation of a proper seed bed. For rice crop, land preparation is a rigorous and time consuming operation that needs special attention for preparing a puddled soil condition to transplant the weak and tender rice seedlings. A field experiment was established under agro-ecological conditions of Sheikhupura to evaluate different land preparation techniques during fall in 2017 and 2018 years. The experiment was performed at Adaptive Research Farm Sheikhupura. It was laid out in randomized complete block design (RCBD) with four different land preparation techniques including T1= Cultivator (4 times) + Planking (2 times) (Farmer’s Practice), T2=MB plough (1 time) + Disc Harrow (1 time) + Planking (2 Times), T3=MB plough (1 time) + Cultivator (2 times) + Planking (2 Times) and T4= Rotavator (1 time) + Disc Harrow (1 time) + Planking (2 Times), each treatment replicated thrice during both the years. All the other agronomic and crop husbandry operations were kept uniform throughout the growing season every year. The results revealed that preparing land with MB plough (1 time), Disc Harrow (1 time) and Planking (2 times) is the best land preparation method can increase the paddy yield 13.5-17.5% as compared to the traditional method practised by the farmers. Moreover, highest plant height (134.00 cm and 132.00 cm), number of tillers (224 and 220 m-2), number of grains per spike (130 and 116) and 1000-grain weight (23.0 and 22.0 g) respectively during Kharif-18 and Kharif-19 was also recorded in the same treatment. So, preparation of land for paddy in agro-ecological conditions of Sheikhupura using MB plough (1 time), Disc Harrow (1 time) and Planking (2 times) can significantly enhance the paddy yield.
Afficher plus [+] Moins [-]Ripening Regulation of Banana Cv. Malbhog Using Different Ripening Inducers Texte intégral
2021
Ritambar Ghimire | Pankaj Kumar Yadav | Arjun Kumar Shrestha | Ananta Raj Devkota | Shovit Khanal
This experiment was carried out under the study entitled “Ripening regulation of the banana Cv. Malbhog using different ripening inducers” for controlling the ripening of the banana, for improvement of quality attributes and post-harvest life of banana. The experiment was conducted at laboratory of horticulture, Agriculture and Forestry University, Rampur, Chitwan, Nepal from 14th March to 16th April 2019. These experiments were laid out in completely randomized design in which the first experiment comprised of seven treatments consisting of distilled water spray, ethephon @ 250 ppm, ethephon @ 500 ppm, ethephon @750 ppm, ethephon@1000 ppm, Dhurseli (Colebrookea oppositifolia) leaves and Ripe banana replicated thrice. Different post-harvest parameters were recorded at the interval of two days for the experiment till any one of the treatment attained score 6 in the color chart. In this experiment, the CI-6 stage was reached earlier on the 9th day with the use of ethephon @ 1000 ppm but ethephon @ 500 ppm was found more effective regarding quality parameters with TSS (21˚B), and TSS/TA (34.66). The maximum physiological loss in weight (12.927%) and pulp peel ratio (3.65) was observed with ethephon@1000ppm and the minimum was achieved in banana sprayed with distilled water. The shelf life of banana was seen minimum (13.33 days) in ethephon @ 1000 ppm and maximum (20.33 days) in banana sprayed with distilled water.
Afficher plus [+] Moins [-]A Study on Germination Biology of Wild Mustard (Sinapis arvensis L.) Texte intégral
2021
Bahadir Şin | İzzet Kadıoğlu
This study has been carried out in 2017-2018 in order to determine seed dormancy and effective germination depth wild mustard (Sinapis arvensis L.). The in-vitro dormancy breaking experiments (tip breaking, sanding, H2SO4 application, holding in flowing and still water, GA3, KNO3 and GA3+KNO3 combination application) has been applied to wild mustard seeds collected from wheat field in Tokat province and has been applied to wild mustard seeds collected from wheat field in Tokat province and the most effective method was determined as 1000 ppm GA3+KNO3 with 98% impact on seed germination at 15°C within 72 hours. In contrast germination rate has been calculated as 5% in control plants. Furthermore 15°C was assessed as optimum temperature for seed germination was the most effective temperature and during depth studies 100% of wild mustard seeds germinated at 3-5 cm. Because of the difficulies with the work with seeds and plants that have dormancy, these data will contribute future studies.
Afficher plus [+] Moins [-]Screening of Bio-active Pigments, Antioxidant Activity, Total Phenolic and Flavonoid Content of Some Economically Important Medicinal Plants for Ethno-botanical Uses Texte intégral
2021
Md. Abdul Hakim | Mohammed Arif Sadik Polash | Md. Ashrafuzzaman | Md. Solaiman Ali Fakir
An experiment was conducted to determinate the phytochemical properties (chlorophyll-a, chlorophyll-b, carotenoids, antioxidant activity, total phenolic and flavonoid content) in ten medicinal plants namely Syal Kata (Argemone mexicana L.), Akanda (Calotropis gigantea (L.) Dryand.), Dumur (Ficus carica L.), Chalmugra (Gynocardia odorata R.Br.), Kata kachu (Lasia spinosa (L.) Thwaites), Shetodrone (Leucas aspera (Wild.)), Khona (Oroxylum indicum (L.) Kurz), Reri (Ricinus communis L.), Ghat kachu (Typhonium trilobatum (L.) Schott) and Bazna (Zanthoxylum rhetsa DC.) for ethno-botanical uses. The young fresh leaves were harvested and were subjected to methanolic (95%) extract. Total phenolic contents were analysed by using Folin - Ciocalteau method where gallic acid was used as standard. Total phenolic content varied from 94.53 mg GAE/100 g FW (C. gigantea) to 484.88 mg GAE/100 g FW (L. aspera). Total flavonoid contents were performed by using Quercetin as standard. Total flavonoid content varied from 137.25 mg QUE /100 g FW (C. gigantea) to 334.27 mg QUE/100 g FW (G. odorata). Antioxidant activity of these extracts was performed by using DPPH free radical scavenging assay. Total anti-oxidant capacity varied from IC50 value 35.37 mg/mL (A. mexicana) to 90.47 mg/mL (F. carica) where ascorbic acid is used as standard. Results indicated that among the ten medicinal plants phenolics rich in L. aspera, flavonoids rich in G. odorata, antioxidant activity rich in A. mexicana. Z. rhetsa leaf rich in chlorophyll-a content (311.67 mg/100 g FW), L. aspera leaf rich in chlorophyll-b content (157 mg/100 g FW), Z. rhetsa rich in chlorophyll- (a+b) content as 439 mg/100 g FW, A. mexicana leaf rich in carotenoids content as 96 mg/100 g FW.
Afficher plus [+] Moins [-]Effects of Allegations Regarding the Use of Antibiotics and Hormones in Diets on Consumer Perceptions, Attitudes and Behaviors towards Broiler Meat Consumption Texte intégral
2021
Kerem Karasu | Ergin Ozturk
This research has been carried out to determine the effects of the current misinformation (hormone, antibiotic, feed additives and growth of broiler chickens in a short period) on consumers' view of the poultry meat sector. The survey was conducted in Istanbul province which better reflects the socio-cultural and socio-economic structure of Turkey, and with different demographic structure of 384 people face to face survey method was applied. Questions were asked to determine whether antibiotics and hormones were used in the diet of broiler chickens, and consumers' perceptions, attitudes and behaviors about the reliability of chicken meat. According to the results of the study, 73.4% of the consumers stated that they did not know about the contents of broiler diets. A big majority of the consumers (88.3%) stated that they think hormone is used and 84.6% think antibiotics is used in the feeding of broiler chickens. 78.4% of consumers surveyed stated that they think that broiler chickens are not fed with healthy feed. Also, 70.6% of consumers stated that rapid growth was due to use of antibiotics and hormones. Although the use of hormones and antibiotics as growth promoters in poultry feeds is prohibited, consumers think that they are used as additives and broiler meat is not safe food. According to these results, creating a positive effect on the purchasing decisions of the consumers is important for the sustainability and future of the sector.
Afficher plus [+] Moins [-]Evaluation of Improved Faba Bean Technology in The Wider-Scale: Lesson from Stakeholders’ Participation in Wag-Lasta, Ethiopia Texte intégral
2021
Ademe Mihiretu | Adane Wubet
This scale-wide participatory evaluation was designed to assess farmers’ technology preference and stakeholders’ linkage on top of estimating the advantage and efficiency of improved faba bean technology over the local practice. On-farm experiment and assessment were conducted using 100 farmers who allocate 0.25-0.5ha of land in Wag-lasta dryland. Planting and other agronomic standards were applied as per the technological recommendation. Required quantitative and qualitative data collected at farm and farmer level using quadrants and checklist, respectively. Cost-benefit analysis, descriptive and inferential statistics were employed to analyse the quantitative data. Qualitative data such as farmers’ technology preference and stakeholders’ linkage were assessed in simple ranking matrix and SWOT analysis. The improved faba bean technology provided mean grain yields of 1340 and 590 kg ha-1 in Lasta and Sekota districts, respectively. It has thus a 31.4% and 38.9% yield advantage and penalty over the local practice, in that order (p
Afficher plus [+] Moins [-]