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The Threat of Ochratoxin A in Poultry Nutrition Texto completo
2016
Emrah Güngör | Aydın Altop | Güray Erener
Ochratoxin A is a toxic substance coming up with growing up of some species of Aspergillus and Penicillium at feedstuffs. Diseases and deaths can occur if this toxic substance is consumed by animals. Ochratoxin A can contaminate easily feedstuffs of mixed feeds while producing, harvesting and storing period and pose a serious threat for world and Turkey considering existing rate in feed and feedstuffs. Moreover taking account of passing to animal tissues, ochratoxin A pose a serious risk for human health. Regarding this, ochratoxin A has negative effects on human such as disorders of kidney and reproductive organs. In addition there is various methods to eliminate this damages made by ochratoxin A. In this review, existing of ochratoxin A in poultry feeds, the negative effects on poultry, transition to tissues and practices that can ease the negative effects were summarized.
Mostrar más [+] Menos [-]Identification and Determination of Antibiotic Multiresistance of Gram-negative Bacteria Isolated from Hospital Sewage Texto completo
2016
Fatih Matyar
In this study it was aimed to determine the microbial diversity and level of antibiotic resistance patterns of Gram-negative bacterial isolates from the hospital sewages. The 219 Gram-negative bacterial isolates to 16 different antibiotics (belonging 10 classes), was investigated by agar diffusion method. A total of 18 species of bacteria were isolated: the most common strains isolated from all samples were Klebsiella oxytoca (27.4%), Klebsiella pneumoniae (20.5%) and Escherichia coli (20.1%). There was a high incidence of resistance to ampicillin (98.6%), streptomycin (95.9%) and erythromycin (90.0%), and a low incidence of resistance to cefepim (13.2%), imipenem (5.0%) and meropenem (3.2%). 35.6% of all bacteria isolated from hospital sewage were resistant to 9 different antibiotics. The multiple antibiotic resistances (MAR) index ranged from 0.25 to 0.94. Results show that hospital sewages have a significant proportion of antibiotic resistant Gram-negative bacteria, and these bacteria constitute a potential risk for public health.
Mostrar más [+] Menos [-]The Determination of the Biochemical Properties of Some Monofloral Honey Samples Produced across Turkey Texto completo
2016
Aziz Gül
The Determination of the Biochemical Properties of Some Monofloral Honey Samples Produced across Turkey Texto completo
2016
Aziz Gül
This study was conducted in 2013 to determine the biochemical properties of 10 different monofloral honey types produced across Turkey. For the study, honey samples were obtained from beekeepers and the identity and relative percentage of dominant pollen types in samples was determined through microscopic analysis. Pollen analysis revealed that honey types chaste tree (Vitex agnus-castus) and sunflower (Helianthus annuus) contained high proportions of each respective pollen type. These proportions reached as high as 86%, while other honey types such as Anason had low Anasom pollen content, occurring at 45% in whole honey samples. Biochemical analysis revealed that the average honey sample quality characteristics were as followings: ash 0.37±0.04, electricity conductivity 0.79±0.07 mS/cm, moisture 19.15±0.09%, pH 3.97±0.02, acidity 29.07±0.39 meq/kg, hydroxymethylfurfural (HMF), 6.17±0.76 mg/kg, diastase 22.05±0.00, invert sugar 69.72±0.49% and sucrose 2.90±0.30%. These analyses confirmed that honey samples met standards outlined by the Turkish Food Codex Honey Standard, European Union Honey Standard and Codex Standards respectively.
Mostrar más [+] Menos [-]A comparison of tissue preparation methods for protein extraction of cocoa (Theobroma cacao L.) pod Texto completo
2017
Martínez-Márquez, Ascensión | Morante-Carriel, Jaime Alfredo | Bru-Martínez, Roque
Cocoa, Theobroma cacao L. is one of the main tropical industrial crops. Cocoa has a very high level of interfering substances, such as polysaccharides and phenolic compounds that could prevent the isolation of suitable protein. Efficient methods of protein extraction are a priority to successfully apply proteomic analyses. We compared and evaluated two methods (A and B) of tissue preparation for total protein extract by phenol/SDS extraction protocol. The difference in the application of the two methods was that extensively washed dry powder of pod tissue were made in Method A, whereas that crude extract were prepared Method B. Extracted proteins were examined using one-dimensional electrophoresis (1-D). Results show that each extraction method isolated a unique subset of cocoa pod proteome. Principal component analysis showed little variation in the data obtained using Method A, while that in Methods B showed no low reproducibility, thus demonstrating that Method A is a reliable for preparing cocoa pod proteins. The protocol is expected to be applicable to other recalcitrant plant tissues and to be of interest to laboratories involved in plant proteomics analyses. A combination of extraction approaches is recommended for increasing proteome coverage when using gel-based isolation techniques.
Mostrar más [+] Menos [-]Efficient in vitro Clonal Propagation of Muscari neglectum Guss. Ex. Ten Using Thidiazuron- α Naphthalene Acetic Acid Texto completo
2016
Çiğdem Alev Özel | Fatma Ünal
Muscari neglectum Guss. Ex Ten, is an ornamental, herbaceous perennial plant species that grows in the Mediterranean countries with attractive and scented blue-colored flowers. The plant has low seed output, seed dormancy, low germination and propagation rates. This study aimed to develop a reliable microclonal propagation protocol for M. neglectum using TDZ (Thidiazuron)-NAA (α Naphthalene acetic acid) to induce bulblets, roots, and acclimatization of the regenerated bulblets. Maximum number of bulblets per explant (8.25±0.05) was noted on MS medium containing 0.0454 µM TDZ-5.37 µM NAA. The bulblets regenerated in each type of culture medium were very vigorous, and acclimatized easily following rooting on a subculture. Here we show that this protocol is a useful clonal micropropagation system for this important ornamental plant.
Mostrar más [+] Menos [-]Pleurotus eryngii Türünün Farklı İzolatlarına Ait Mantarların Bazı Mineral Besin İçeriklerinin Belirlenmesi Texto completo
2016
Erdinç Uysal | Mustafa Kemal Soylu
Bu çalışma tüm dünyada Pleurotus türlerinin kralı olarak bilinen (The King Oyster) Pleurotus eryngii mantarının farklı izolatlarında mineral madde içeriklerinin belirlenebilmesi amacıyla yapılmıştır. Çalışmada Pleurotus eryngii türüne ait farklı lokasyonlardan elde edilen 15 farklı izolat materyal olarak kullanılmıştır. Örneklerde fosfor, potasyum, kalsiyum, magnezyum, sodyum, demir, mangan ve çinko belirlemesi yapılmıştır. Her bir izolatın mineral içeriği sap ve şapkada ayrı ayrı belirlenerek elde edilen sonuçlar bu şekilde değerlendirilmeye alınmıştır. Elde edilen sonuçlara göre mineral içerikleri sap ve şapkada önemli oranda farklılık göstermiştir. Fosfor, magnezyum, demir, mangan ve çinko şapkada daha yüksek oranda bulunurken potasyum, kalsiyum ve sodyum mantar sapında yüksek belirlenmiştir. Ortalama değerler dikkate alındığında izolatlar arasında mineral içerikleri açısından önemli farkların olduğu görülmüştür. K7 ve J113 en yüksek fosfor içeren izolat olmuştur. WC888 hem potasyumu hem de sodyumu en çok içerirken, WC999 mangan ve magnezyum içeriği en yüksek olan izolatlar olmuştur. Kalsiyumu en fazla J113 izolatı içerirken, demir açısından en zengin izolat K78 olarak saptanmıştır. Çinko açısından en yüksek içerik K78, J113, M18 ve WC 955 izolatlarında belirlenmiştir.
Mostrar más [+] Menos [-]Phosphorus Use Efficiency in Canola Genotypes Texto completo
2016
Kürşat Korkmaz | Çağatay Altıntaş
Phosphorus (P) deficiency is a widespread macronutrient deficiency and is one of the major constraints limiting canola production. Efficient P fertilizer method’s is important for economic production of canola and sustaining of environmental quality. The aim of this research is to investigate P use efficiency (PUE) of canola genotypes at an early growth stage. The experiment was set up as a completely randomized design in a factorial scheme. The factors were ten canola genotypes (Excalibur, Nelson, Vectra, Orkan, Triangel, TKK08-5, Oase, Elvis, Es Hydromel and Licord) and three P rates (0, 50 and 100 mg kg-1). The plant parameters, dry weight of shoot and root varies significantly with P levels in all applications. In general, P concentrations and dry weight of the genotypes are linearly raised by P treatments. The genotype Elvis produced significantly higher shoot dry matter 9.24 g pot-1 at 100 mg kg-1 P rate compared to the other applications. However, without P, dry matter (DM) of genotypes varied between 1.67 to 6.96 g pot-1. Cultivars classified as efficient responsive are: Elvis, inefficient responsive: Nelson, Orkan, Oase, Licord, and efficient nonresponsive: Excalibur, Vectra, Triangel, TKK08-5, Es Hydromel. Plant dry matter can be used for identification of the genotypes which could be adapted to low or high soil P availability conditions at an early growth stage. Nutrient use efficiency and genotypic differences in plants should be considered in order to create an accurate and a balanced fertilizer program as well as improving crop yield in agricultural production system.
Mostrar más [+] Menos [-]Determination of Water Quality Parameters and Heavy Metal Content in Surface Water of Çiğdem Pond (Kastamonu/Turkey) Texto completo
2016
Aslı Kurnaz | Ekrem Mutlu | Arzu Aydın Uncumusaoğlu
The main aims of this study were to observe the seasonal variations of physicochemical parameters and heavy metal content, to determine the water quality properties and the suitability level in terms of aquatic life, and also to classify the quality of water in accordance with the Surface Water Quality Management Regulation (SWQMR) criteria at Çiğdem Pond (Kastamonu/Turkey). In total, 21 physicochemical parameters and 7 heavy metals were investigated for water quality assessment of the studied pond between July 2015 and June 2016 in 3 stations. The water quality in Çiğdem Pond was found to be Class I according to SWQMR. The results of this study provide a data baseline for future studies on subsequent evaluations of possible future environmental contamination. Also, to protect the water quality and to ensure the health of aquatic life in this area, it is required to make regular observations.
Mostrar más [+] Menos [-]Role of Legislature in Sustainable Agricultural Development in Developing Nations: A Case Study of Nigeria Texto completo
2016
Akinbode Michael Okunola
When continuity is lacked in the agricultural programs and policies of a developing nation, such nation cannot avoid to keep moving round a circle. Such nation’s agricultural sector will be full of activities without actions and achievements will elude such country. This study therefore reviewed some of the agricultural programs and policies in Nigeria, their failures and successes as well as reasons behind the failures and success vis-à-vis the recent agricultural development strategy of Nigeria; Agricultural Transformation Agenda which has had its attending major successes of lifting the agricultural economy of Nigeria from being a democratic dividend to profit-oriented commercial business sector of the economy and x-rayed the role of legislature in sustainability of the successes of the agricultural strategy for continuity of agricultural development in Nigeria.
Mostrar más [+] Menos [-]The Comparison of Agricultural Knowledge and Information Systems (Akis) For Adopters and Non-Adopters of Good Agricultural Practices in Bafra District of Samsun, Turkey Texto completo
2016
Mustafe Abdulkadir Abdurahman | Kürşat Demiryürek | Nur İlkay Abacı
The purpose of the study is to compare Agricultural Knowledge and Information Systems (AKIS) for adopters and non-adopters of Good Agricultural Practices (GAPs) in the Bafra district of Samsun, Turkey. The main materials of this study are the data obtained from a survey and interview with adopters and non-adopters of GAPs in Bafra district. The research data were collected from 77 farmers contained both adopters and non-adopters of GAPs. Statistical analysis, such as Chi-square and t-test was used. The study results presented the socio-economic characteristics of farmers. There was a significant difference between adopters and non-adopters of GAPs, according to household size, organizational membership, farm size, livestock and crop production. Meanwhile, the information sources such as a district agricultural manager/personnel, adviser of the farmers’ union association (GAPs) and pesticide/fertilizer dealers were preferred the main sources of agricultural information for adopters of GAPs. However, it recommended that information sources like research institute, university and cooperatives needs to be improved by strengthening their way of information dissemination. In terms of usefulness of AKIS for this study, it seems that this system was insufficient to analyze this study. Even though the functions of this system are essent ial elements, they are insufficient for establishing a network of complex innovation-oriented institutional arrangements. In the future, this study suggests to analyze GAPs it needs to use Agricultural Knowledge and Innovation System (AKIS) approach, because this system have many interaction networks that can facilitate the researchers to reach the innovation easily to the intended farmers.
Mostrar más [+] Menos [-]Yield, Quality and Water Use Efficiencies of Silage Maize as Effected by Deficit Irrigation Treatments Texto completo
2016
Ali Beyhan Ucak | Tugay Ayasan | Nizamettin Turan
The present study was carried out to investigate the effects of different water deficit levels applied through growing season on silage yield, quality and water use efficiency (WUE) of main crop silage maize under semi-arid climate conditions during the years 2014 and 2015. Irrigation treatments were set as 100% (I100), 70% (I70) and 35% (I35) supply of depleted water within 0-90 cm effective root zone in 7-day intervals. Applied irrigation water quantities in I100(control) treatment of the first and second year (in 8 irrigations) were respectively observed as 693 and 666 mm. Plant water consumptions in control treatment were respectively measured as 770 and 738 mm. Silage yield was 10650 kg da−1 in the first year and 10600 kg da−1 in the second year. The silage yield obtained from I70 treatment with 30% water deficit was statistically placed in group (B) following I100 (control) treatment. The water deficits over 30% resulted in significant decreases in silage yield and quality. The correlation coefficient between ETa and dry matter was respectively identified as (r: 0.78), (r: 0.87) in 2014 and 2015 and the correlation coefficient between plant water consumption (ETa) and protein content was respectively identified as (r:0.81), (r:0.80) and the correlations between ETa and quality parameters were found to be positive and highly significant. There were significant linear correlations between ETa and kernel yield (Y). Yield response factor (ky) of experimental years were respectively calculated as 0.74 and 1.06. Irrigation water use efficiency (IWUE) values varied between 3.80-5.10 kg da−1 mm and water use efficiency (WUE) values varied between 3.62 and 4.42 kg da−1 mm.
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