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In vitro Screening for Salt Tolerance of Some Citrus Rootstocks Full text
2020
Mehmet Yaman | Hasan Pınar | Ubeyit Seday | Duygu Altınöz | Aydın Uzun | Nur Selin Çabuk
Just because of geographical spread, citrus species generally grow in places sensitive to salinity. Testing methods have a significant role in breeding and cultivar development programs. This study was conducted to investigate in vitro salt response of Cleopatra mandarin (Citrus reshni Tan.), sour orange (Citrus aurantium L.), rough lemon (Citrus jambhiri Lush.), Volkamer lemon (Citrus volkameriana Tan & Pasq.), Carrizo citrange (Poncirus trifoliata L. Raf. X Citrus sinensis L. Osbeck) and trifoliate orange (Poncirus trifoliata Raf.) rootstocks at different NaCl concentrations. Seeds were germinated in MS medium with 0, 45, 90 and 135 mM NaCl concentrations. In general, the greatest germination rates in all salt concentrations in Volkamer lemon and sour orange rootstocks and the lowest values were observed in rough lemon and trifoliate orange rootstocks. Present findings revealed that in vitro conditions could reliably be used in salt tolerance tests of citrus rootstocks.
Show more [+] Less [-]Effects of Extenders and Cryoprotectants on Cryopreservation of Duck Semen Full text
2020
Atilla Taşkın | Fatma Ergün | Ufuk Karadavut | Demirel Ergün
In this study, it was aimed to determine the usability of different diluents and cry protectants in cryopreservation of Peking duck semen. Semen samples were collected from five male ducks, twice a week for four weeks, using the abdominal massage method. In the study, 40 semen samples were used. Semen samples from ducks were combined (mixed) after being evaluated individually. Mix semen volume (ml), density (×109 / mL), pH, motility (%) and vitality (%) values were determined as 1.84±0.04, 1.72±0.8, 6.88±0.29, 71.55±3.28 and 74.27±4.67 respectively. In the study, as cry protectant, Glucose I (GⅠ) containing 6%DMF (dimethylformamide), Tris-Glucose I (TI), Lactated Ringer's-Glucose I (LGI), Lactated Ringer's I (LI) and Glucose II (GⅠI) containing 5% DMSO, Tris-Glucose II (TII), Lactated Ringer's-Glucose II (LGII), Lactated Ringer's II (LII) were used as diluents. The mixed semen was divided into eight equal parts and 1:3 ratio diluent was added and equilibrated in straws for 90 minutes at + 4°C. The straws were first frozen to -80°C with liquid nitrogen vapour, and then stored in liquid nitrogen at -196°C. After freezing and thawing, the highest motility value was determined in diluent LGI with 41.91%. In other diluents used, the mortality values were determined as LII (33.10%), LGII (32.80%), LI (29.00%), GI (23.66%), TI (12.91%), GII (11.22%) and TII (6.90%). Vitality (%) values were determined as LGI (44.08%), LII (38.50%), LGII (35.10%), LI (33.58), GI (30.91%), GII (23.10%), TI (20.66%) and TII (14.80%) respectively. In this study, it has been determined that the lactated Ringer's-Glucose diluent containing 6% DMF is more advantageous in terms of semen vitality and mortality values when compared to other diluents and that it can be used for long-term storage of duck sperm.
Show more [+] Less [-]Impact of 2008 Global Economic Crisis on Youth Unemployment: An Application to Turkey Full text
2020
Mehmet Arif Şahinli | Ahmet Özçelik | Hüseyin Tayyar Güldal
In recent years, youth unemployment in Turkey is the effect of economic growth on employment and unemployment. When we search studies for employment and unemployment in the literature, we can’t find many empirical studies for the Turkish economy. In order to contribute about this subject, we try to search the effect of economic growth on youth unemployment for the Turkish economy for the period of 1998-2016 employing Dummy variables. Especially, we found that, increasing effect of economic growth on youth unemployment.
Show more [+] Less [-]Investigation of Equipment Elements of the Niğde Ömer Halisdemir University Campus in Terms of Aesthetics and Functional Properties Full text
2020
Orhun Soydan
In this study, equipment elements which have been used in Niğde Ömer Halisdemir University campus, were analysed considering various criteria in terms of landscape architecture. In this study, lighting and flooring elements, trash cans, sitting elements etc. were evaluated considering some criteria such as maintenance, design, ergonomics, etc. Within the scope of the study, it has been determined whether the equipment elements in the campus meet the people needs. There are insufficient number of seating elements in the campus, security problems occur due to the lack of lighting elements in certain places. The bus stops in the campus are sufficient numerically, and they are in suitable areas in terms of location. In addition, the number of telephone booths and the number of trash cans in the campus are insufficient. The designs of the equipment elements are similar, and equipment elements have traditional design. As paving elements, key paving stones are used on pedestrian roads, so that in some areas, collapses occur, so fall, snag, etc. on pedestrian roads. Finally, suggestions for using equipment elements in campus areas were developed.
Show more [+] Less [-]Tuber fulgens Quél., A New Record for Turkish Truffles Full text
2020
Ilgaz Akata | Mustafa Sevindik | Ergin Şahin
Tuber samples were collected from Kırklareli province on the 10th of August 2020 and they are identified by implementing both traditional methods and molecular phylogenetic analysis using the rDNA sequences including Internal Transcribed Spacer (ITS) and 28S Ribosomal Large Subunit (LSU) regions. By taking into account the high sequence similarity between the collected samples (ANK Akata 7351) and the truffle species Tuber fulgens Quél. the collected specimen was regarded as T. fulgens and the morphological data also consolidated this finding. As a result, T. fulgens was reported for the first time from Turkey. A short description of the newly reported species is given along with its macro and microphotographs, and spore images taken by a scanning electron microscope (SEM). Additionally, ITS and LSU rDNA based evolutionary history of the specimen is provided with phylogenetic trees.
Show more [+] Less [-]Calix[4]arene Embedded Polyamide Supported Liquid Membrane for Separation of Heavy Metals from Aqueous Solutions Full text
2020
Seydahmet Cay | Serkan Sayin | Mehmet Soner Engin
In this study, we aimed to prepare new calixaren embedded mercapto groups supported liquid membranes and to use them in the transport of heavy metals. For this purpose 5,11,17,23-tetra-tert-butyl-25,27-bis(3-thiol-1-oxypropane)-26,28-dihydroxylcalix[4]arene was synthesized. The synthesized calixarene compounds were fully characterized by spectroscopic and the other techniques. The prepared compounds were supported polyamide liquid membranes and obtained calix[4]aren embedded supported liquid membranes (C@PSMs). The characterization of C@PSM was carried out by FTIR, TGA and elemental analysis techniques. Transport experiments were carried out with Pb(II), Cd(II) and Zn(II) as trace metals, to transport from donor phase to accept phase. From the results, it was calculated flux (J) and recovery (RF) values. The affinity (the percentage of metal ion transferred from the source solution) of a PIM towards a range of divalent cations was found to follow the order Zn(II)> Cd(II)> Pb(II).
Show more [+] Less [-]Relationship between Transportation Conditions and Live Weight After Incubation in Broiler Pure Lines of Different Feathering Rates Full text
2020
Kadir Erensoy | Moise Noubandiguim | Musa Sarıca | Umut Sami Yamak
In this study, the relationship between temperature and humidity levels and live weight losses of day-old chicks in broiler pure lines with different feathering rates were investigated. The research material consisted of 3 female pure-lines (A1: slow feathering, A2: fast feathering, A3: slow feathering) and 2 male pure-lines (B1: fast feathering, B2: fast feathering) used in broiler breeding. The hatching chicks were individually numbered, sex-seperated, live weight determined and vaccinations were performed at 26-28°C temperature and 60-65% humidity levels in hatchery. The chickens from different genotypes were placed in cardboard boxes of 68×49×16 cm size with 3 unit and 150 chicks were used in the male-female mixed in 10 chicks in each unit. The chicks were transported in an air-conditioned vehicle for 9 hours between Eskişehir and Samsun, with an average temperature of 28.8°C and a humidity of 40.8%. When the chicks arrived to barn, weight losses are determined individually during transport. The effect of genotypes and feathering rates on live weight loss was found significant. The highest weight loss was determined 1.6 g and 3.8% in B1 and B2 genotypes equally without gender effect. Also, A2 and A3 genotypes were similar too; genotypes with the lowest weight loss of 0,7 g and 0.8 g and 1.6% respectively. Besides, the live weight loss in genotypes with fast feathering was found 1.3 g and 3.1%, which was significantly higher than the slow-feathering (0.9 g and 2.1%). The weight loss fast-feathering male pure-lines is higher than fast-feathering female pure-lines; it is thought that the increase in the metabolic rate due to the selection for live weight increase and faster depletion of the body reserves may be effective in these lines.
Show more [+] Less [-]The Place and Analyse of Antalya in the Fisheries Sector Full text
2020
Serpil Yılmaz | Mustafa Tunca Olguner
The fisheries sector makes significant contributions to the economy for the animal nutritional needs of the people, industry, employment and national income. In particularly the aquaculture sector is one of the fastest growing sectors in Turkey with a growth rate of 11%. Antalya is one of the provinces with an importance in the aquaculture sector. Unfortunately, it is not possible to use this potential efficiently either as the province is also a major tourism destination. As a matter of fact, cage nets in the province have been moved to further locations due to tourism. However, there are still 78 active aquaculture facilities in Antalya, including 73 trout and 5 seabream-seabass. These businesses are performing about 2% of Turkey's aquaculture production. As of 2017, aquaculture production amount in the province was 5,693 tons/year. There are 5 fishing shelters in Antalya in 2017. These are located in Konyaalti, Alanya, Finike, Kas (Center) and Kas (Kalkan) regions. However, the number of landing points cause some confusion and problems in terms of control. For this reason, it is requested to open a Seafood Wholesaler in the province. The fisheries and aquaculture production was 6,779 tons/year in Antalya and 1680 tons in 2016, 1898 tons in 2017 and 2359 tons/year as of 2018 were exported.
Show more [+] Less [-]Variation in Chemicals and Growth Parameters of Taşköprü Garlic Full text
2020
Nezahat Turfan
Main goals of the present study were (1) to initially investigate the nutrient contents and bioactive compounds in the bulb and cloves of garlic, and (2) to study the growth parameter after planting. Garlic bulbs were firstly separated into three categories as pickled, big and small, while the big garlic cloves were also classified into three categories as big, small and central. Secondly, the garlic samples were analyzed before planting for their element profile, proline, soluble protein, free amino acid, β-carotene, lycopene, total phenolic, soluble sugars, SOD and α-amylase activities. Finally, the growth parameters were measured using the cultivated cloves and the pickled bulbs. According to the result, the highest soluble protein, N, phenolic, lycopene and α amylase activity (97.06 mg, 2.58%, 971 mg, 0.368 mg and 38.13 EU, respectively) were recorded in the biggest cloves. The highest proline, amino acid, glucose content (93.84 µmol, 23.54 mg, 230.89 mg, respectively) and K, P, S, Mg, Mn, Fe and Zn (21940 ppm, 7577 ppm, 12200 ppm, 504 ppm, 38.1ppm, 377,7ppm and 44.5 ppm, respectively) were found in the pickled bulb. The maximum level of β-carotene (0.282 mg), Ca, Cl and Sr (11260ppm, 818.7ppm and 47.9 ppm) were determined in the small bulbs. Based on the growth parameters of seedlings, the highest value of shoot and root length (39.12 cm and 24.11 cm respectively), the fresh weight of shoot and root (5.29 g and 4.54 g respectively) and dry weight of shoot and root (1.70 g and 1.24 g respectively) were noted with the big cloves. The results of the current study have indicated that the pickled cloves have higher macro and micro nutrients, proline, amino acid and glucose, while the big cloves of garlic have higher proline, phenolic, N%, lycopene and amylase activity. It can be said that the big cloves showed good value for the five bioactive compounds, but the pickled exhibited good value for the macro and micro element and glucose.
Show more [+] Less [-]Effect of Production Systems for Laying Hens on Hen Welfare Full text
2020
Brian Tainika | Ahmet Şekeroğlu
This review article discussed the effects of various production systems on the welfare of laying hens. The global egg production capacity has been increasing with the evolving production systems which are driven by the consumer preferences. In developed countries, the egg industry has shifted from focusing on quantity and quality of eggs to asking questions of how these eggs are produced. Animal welfare issues emphasized by consumers in these countries led to the banning of conventional cages as seen by European Union in 2012. Such legal measures have uplifted research in various alternative production systems which are thought to be animal friendly. Countries that have adjusted to alternative systems such as free range are registering an increase in the number of free range eggs which is a positive sign for an industry that is willing to adapt and move forward. However, in developing countries, conventional cages are still being used because they are fundamental to the quantity of egg production which is a success indicator of the egg industry. In addition, lack of awareness within the consumers and local producers that birds are sentient has not helped the poultry industry in such countries. However, the alternative production systems have also not fulfilled all the behavioural needs of the animals and, hen welfare issues such as keel and bone damage are common in enriched and perched systems. Also, the high prevalence of diseases and parasites are observed with significant levels in litter floor and outdoor systems an issue attributable to the direct contact between birds and soil or faces. Due to the continuing welfare issues in all laying hen production systems, it is suggested that in addition to genetic selection for traits like bone strength, reduced feather pecking, research should combine both the modification of equipment’s or materials used in each production system and environmental factors such as illumination and temperature as an alternative to improve hen welfare.
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