Bu çalışmanın amacı, kırmızı ve beyaz LED ışığın yumurtacı tavukların eşeysel olgunluğu, performansı, yumurta kalitesi ve bazı davranış özellikleri üzerindeki etkisini belirlemektir. On altı haftalık toplam 432 kahverengi yumurtacı yarka (Lohmann) rastgele her biri 12 tekerrürlü 2 uygulama grubuna ayrılmıştır. Uygulama grupları 1) Monokromatik kırmızı LED aydınlatma ve 2) Beyaz LED aydınlatma gruplarından oluşturulmuştur. Kanatlılar, deneme süresince (16-32 hafta) zenginleştirilmiş kafeslerde barındırılmıştır. Tavukların monokromatik kırmızı ışıkta beyaz ışığa göre eşeysel olgunluğa 5 gün ve pik yumurta verimine 4 gün daha erken ulaştıkları ve deneme boyunca % 2,05 daha fazla yumurta ürettikleri belirlenmiştir. Aynı dönemde ışık renginin yem tüketimine ve yemden yararlanma oranına (YYO) etkisi önemli bulunmamıştır. Ancak, yumurta veriminin yüksek olduğu 21, 23-26 ve 29. haftalarda tavukların kırmızı ışıkta daha iyi YYO değerlerine sahip oldukları görülmüştür. Yumurta ağırlığı ve yumurta kitlesi kırmızı ışıkta daha yüksek bulunmuştur. Işık rengi, tavukların yumurta kalite özellikleri, tünek ve folluk kullanımı ve kırık yumurta oranı üzerinde önemli bir etkide bulunmamıştır. Sonuç olarak, büyüme döneminin sonunda başlayan monokromatik kırmızı LED ışık uygulaması kanatlıların daha erken eşeysel olgunluğa ulaşmalarını ve yumurtlama döneminde daha fazla yumurta üretmelerini sağlamıştır.

Bitki gelişimini şekillendiren en önemli faktörlerden birisi topraktaki besin elementleridir. Bitki beslenmesi için mutlak gerekli besin elementlerinden olan demir (Fe) bitki büyümesi ve gelişiminde önemli bir yere sahiptir. Bu sebeple tarım topraklarında Fe konsantrasyonunun değişimi konusunda çok sayıda çalışma yapılmıştır. Oysa orman ağaçlarının yetiştiği topraklarda konu ile ilgili çalışma sayısı oldukça sınırlıdır. Bu çalışmada Fe’in farklı orman ağaçlarının doğal olarak yetiştiği topraklarda topraktaki ve bitki organlarındaki konsantrasyonlarının incelenmesi amaçlanmıştır. Çalışma kapsamında karaçam, sarıçam, göknar ve kayın türlerinden yaprak, kabuk, odun, kozalak ve kök örnekleri ile her ağacın dibinden yüzey, orta ve derin topraklardan numuneler alınmıştır. Çalışma sonucunda Fe konsantrasyonlarının bitkilerde, topraktakinden çok daha düşük konsantrasyonlarda olduğu belirlenmiştir. Bitki organlarında elde edilen en yüksek Fe konsantrasyonu kayın köklerinde elde edilmiş olup 529,32 ppm’dir. Oysa topraklardaki Fe konsantrasyonunun 8253,91 ppm ile 16848,88 ppm arasında değiştiği belirlenmiştir.

Bu çalışma, karma yeme demir dikeni bitkisi (Tribulus terrestris) saponin ekstraktı (DDSE) ilavesinin yumurtacı tavuklarda performans, iç-dış yumurta kalite kriterleri, yumurta kolesterol düzeyleri ve bazı kan serum parametreleri üzerine etkisini incelemek amacıyla yürütülmüştür. Araştırma grupları ticari yumurtacı karma yemine 0 (kontrol); 1 g DDSE, 2 g DDSE, 4 g DDSE ve 8 g DDSE eklenerek 5 gruptan oluşturulmuştur. Toplam 80 adet yumurtacı tavuk her bir grupta 16 hayvan olacak şekilde gruplara rastgele dağıtılmıştır. Araştırma sonuçlarına göre; kontrol grubu hariç diğer deneme gruplarına göre 1 g DDSE grubunda yumurta sarısı kolesterol değeri düşmüştür. Deneme ortasında 2, 4 ve 8 g DDSE grupları kontrol grubuna göre daha yüksek ak uzunluğu değerleri vermişlerdir. Performans ve kan serumu parametre değerleri bakımından gruplar arasında herhangi bir farklılığa rastlanmamıştır. Sonuç olarak DDSE tavuklarda performans, yumurta kalite kriterleri ve bazı kan parametreleri üzerine etkisi olmadığı tespit edilmiştir.

The purpose of this study was to investigate how the addition of rosemary to corn silage affected the quality, fermentation, and in vitro digestion of organic matter. In the study, unaltered silage group constituted the control group, while silages prepared by adding 0.5, 1 and 2% rosemary constituted the experimental groups. After 60 days of ensiling, the pH of the opened silages was determined to be in the range of 3.67-3.72. As the amount of rosemary in the silages increased, the levels of ammonia nitrogen (NH3-N/TN) decreased. Compared to the control group, increases in in-vitro organic matter digestion (IVOMD) and metabolizable energy (ME) values were observed in the experimental groups due to the addition of rosemary. In comparison to the control group, the methane gas (CH4) rate of silages was reduced in the other groups. Meanwhile, the group receiving 2% addition of rosemary had the highest values of acetic acid (AA) and lactic acid (LA) among the supplemented silage groups. But, propionic acid (PA) and butyric acid (BA) were not detected in any of the silage groups. Consequently, it was determined that 1% and 2% of rosemary added to corn silage can enhance the quality of the silage.

As a response to the evolving consumer demand for healthier food choices, ultrasound application in food processing emerges as a sustainable and green solution with no residual effects. This method, known for its cost-efficiency and sustainability, holds significant promise in meeting the increasing need for high-quality, chemical-free, and natural-tasting convenience foods in the ever-changing landscape of the food industry. Ultrasound, leveraging mechanical sound waves, spans across various frequencies: power ultrasound (20–100 kHz), high-frequency ultrasound (100 kHz-1 MHz), and diagnostic ultrasound (1–500 MHz). This study focuses on investigating the impact of ultrasound and combined treatments on food quality, summarizing their diverse applications across different unit operations such as texture and rheology, emulsification and homogenization, crystal formation and modification, dehydration and drying, fermentation, filtration, preservation and shelf-life extension, flavor enhancement, color and appearance, antioxidant activity, enzyme activity and food digestibility, bioavailability and bio-accessibility, and specific food divisions including unprocessed, minimally processed, processed, and ultra-processed foods, as well as culinary ingredients. It delves into their effects on technological and functional aspects of food products, explores emerging trends, offers possible recommendations in ultrasound technology for the food industry, while also recognizing existing challenges and limitations associated with ultrasound and related technologies.

In this study, the effects of different organic matter additives [soil (control), 20 ton ha-1 farmyard manure, 20 ton ha-1 biochar, and 10 ton ha-1 farmyard manure+10 ton ha-1 biochar] to the soil of lettuce grown with different irrigation water levels [100% (full irrigation), 75% (25% deficit irrigation), 50% (50% deficit irrigation), and 25% (75% deficit irrigation)] on water and irrigation water productivity efficiencies and plant characteristics were investigated. Among the organic matter additives, the biochar reduced the amount of irrigation water and actual evapotranspiration of lettuce and increased its marketable yield, thus the highest water and irrigation water productivity efficiencies were obtained from biochar treatment. Despite the decreasing marketable yield in the 50% irrigation treatment, the proportionally decreasing amount of irrigation water and actual evapotranspiration caused the highest water and irrigation water productivity efficiencies to occur in the 50% irrigation treatment. While the root diameter, root fresh and dry weights, stem diameter and length, head fresh and dry weights, marketable leaf number and yield, chlorophyll, and leaf relative water content of lettuce decreased with decreasing irrigation water levels, root length and membrane damage increased. The effects of organic matter additives on all of these physical-physiological properties, except root diameter and membrane damage, were found to be significant, and the biochar provided the most effective development of these parameters under the deficit irrigation regime. Considering that the yield and yield characteristics in 75% irrigation treatment do not decrease at a very significant level compared to full irrigation (100%) and that these decreases can be compensated by biochar and that the farmyard manure+biochar as alternative treatment is also effective in improving the decrease in yield parameters, treatment of 10 ton ha-1 farmyard manure+10 ton ha-1 to the soil at 75% irrigation water level was found to be recommended in lettuce cultivation.

In this study, the effect of pretreatments applied to the sewage sludge of the Tokat Municipality wastewater treatment plant (WTP), the sewage sludge of the packaged wastewater treatment plant (PWTP) of a fruit juice production plant, and the aqueous phases of their mixtures on biogas production was investigated. Chemical, thermal (microwave (MW) and hot plate (HP)) and chemical-thermal pretreatments were applied to these sludge samples. Considering the results in all samples, the highest biogas production amount and efficiency were found in the pre-biogas-unit aqueous phase of the sewage sludge of the Tokat WTP, which was applied 20% H2SO4+10-minute (min) thermal MW pretreatment, with 667.51 ml and 396.34 ml biogas/g water dissolved SM value, respectively. Statistical analyses included the Duncan comparison test for cumulative biogas production efficiencies at the end of 65 days and the maximum exponential increase function and Gompertz equations for cumulative biogas amounts. Accordingly, the most appropriate model was tried to be determined. The electricity generated at the end of the 22-day incubation period at the facility meets 36% of the electricity needed by the Tokat WTP. At the end of the experimental studies (20% H2SO4+10 min thermal MW pretreatment), it can be said according to the 22-day biogas data that the biogas production efficiency increased by 3.41 times, this would meet all the electricity needed by the facility, and that there would be an extra 23% electricity generation of the total generation. Mixing and using fruit juice PWTP and WTP treatment sludge in the production of biogas will enable both the utilization of this waste in biogas production and the weakening and reduction of high parameter values, which sometimes cause problems in the sludge discharged from the Tokat WTP due to urban wastewater treatment, to acceptable limits.

This study investigates the impact of varying planting densities on cotton plants’ morphological traits and yield. As planting density increases, there is a reduction in monopodial and sympodial branches, resulting in a more compact plant structure. The study highlights the highest yield achieved with specific planting densities, endorsing the viability of both holl and row planting methods. It suggests adopting narrow or ultra-narrow row systems to enhance yield and economize input costs. The study was conducted in 2017 at the experimental field of Aydın Adnan Menderes University in the Faculty of Agriculture’s Department of Field Crops. The material used in this study was the widely cultivated cotton variety “Gloria” in the Aegean region. The investigation was conducted using a randomized block design with 4 replications. In evaluating cotton yield and related parameters, it was observed that D1 and D2 (14.285 plants/da) achieved the highest yield concerning plant density, emphasizing the viability of both holl and row planting methods. The study concluded that augmenting the number of plants within a specific area of production significantly contributes to higher seed cotton yields. To enhance yield and economize cotton input costs, the adoption of a narrow or ultra-narrow row production system is suggested as an alternative strategy to conventional methods.

In this study, the effects of hazelnut husk on growth, quality parameters, and nutrient content of primrose were evaluated. For this purpose, thirteen different growing media were prepared by mixing fresh hazelnut husk (FHH) and mature husk wastes (MHH) with peat at different rates. Some physical and chemical properties of the media and nutrient analyses were made for the nutritional status of the plants. The study was carried out in greenhouse conditions with four replications according to the randomized plot design. The aeration capacity and easily available content of the growing media is within the limit values, the medias with 50% FHH and MHH were prominent in terms of air-water balance. The effect of the medium on the aesthetic appearance, total shoot, leaf, and flower number of the primrose was not significant, but it was effective on flower weight, plant height, and root fresh-dry weight. In terms of plant root-shoot development, 30% FHH and 50% MHH were prominent. The media have caused significant differences in nutrient concentrations in primrose except for nitrogen, phosphorus, and copper. The leaf phosphorus concentration was high, nitrogen and potassium concentrations were within the limit value range, iron was sufficient, and manganese and copper were insufficient, while zinc was mostly lower than limit values. When all the data are evaluated, 50% ratios of hazelnut husks can be recommended in primrose cultivation and hazelnut husk can be evaluate in ornamental plant cultivation as a growing media.

Climate change-induced droughts have various negative impacts on different sectors, especially on agricultural sector. Altınekin District, where the research was conducted, has the lowest precipitation in Konya Province, therefore is expected to be most affected by drought. For sustainable use of water resources, each stage of agricultural production should be carried out within the framework of a specific program. With this study, knowledge level of farmers engaged in irrigated agriculture in Altınekin district regarding irrigation and irrigation programs they applied were determined through a face-to-face survey. Present findings revealed that 38.7% of the participant farmers are aged 50 years and over and a large proportion of them (54.7%) are primary school graduates. Participant farmers were all (100%) using groundwater resources in agricultural production and 88% of them stated that they did not receive any training on irrigation. While 32% of the farmers participating in the survey stated that they had knowledge about the concept of irrigation program, 68% reported that they did not have any knowledge. Incorrect and improper practices regarding efficient use of irrigation water in the region, especially regarding the irrigation program, were identified and solutions were proposed for these problems.