In this study, the Brown Layer Pure Line that housing as individual cage system at the Poultry Research Institute in Ankara was used. Eggs obtained from 24, 28, 32, 36 and 40 weeks old eggs were collected 3 times a day in the morning (10:00), noon (12:00) and evening (15:00). On a total of 427 eggs; Shape Index (SI), Egg weight (YA, g), Albumen height (AY, mm), Roche scale (RS), Haugh unit (HB), Egg Quality Classes (YKS), Shell strength (KM, N) and Shell thickness (KK, Micron) features are emphasized and colour parameters (L*, a*, b*, Hue, Ch and ΔE) of egg shell were determined. The effect of oviposition time was found significant on the Shape index, Egg weight (g), Haugh unit and Shell thickness (micron) values. However, Albumen height (mm), Egg Quality, Roche scale and Shell strength (N) were not affected by oviposition time. Among the egg shell colour parameters, a*, b*, Hue and Chrome values were affected by the oviposition time, and the calculated difference was found to be statistically significant.

This study was aimed at identification and prevalence of potato soft rot and black leg disease agent in the potato production areas of Tokat province. In March-August 2018, 67 field surveys were carried out in Central, Turhal, Zile, Pazar, Erbaa, Niksar, Artova and Basciftlik districts of Tokat. The disease incidences were 0.25%, 0.33%, 0.31%, 0.5%, 1%, and 8% in Central, Erbaa, Niksar, Pazar, Turhal, and Zile district, respectively. In Artova and Basciftlik districts, no disease was encountered. The following tests, pectolytic activity on potato, gram reaction, catalase, oxidase, growth at 37°C and 39°C, salt tolerance, hypersensitivity reaction were applied to isolates obtained from diseased plant and tuber samples. In the PCR assay, 19 isolates were produced 434 bp product with Y1/Y2 primers specific to Pectobacterium spp., and 3 isolates were produced 420 bp product with ADE1/ADE2 primers specific to Dickeya spp. The isolates resulted positive with Y1/Y2 primers weren’t produced PCR product with ECA1/ECA2 primers specific to Pectobacterium atrosepticum. According to this, 19 isolates were identified as Pectobacterium carotovorum. With this study, the causal agent of potato blackleg and soft rot disease have been identified in the potato production areas of Tokat. Further studies will be conducted to determine the species and subspecies level of the pathogens using specific primers.

Anthocyanins, a major natural food colorant rich in mango powder, need considerable protection during processing and storage for better retention due to colour instability. The purpose of the study is to evaluate the stability of the anthocyanin’s extracts obtained from cabinet dried mango powder under different factors which could disrupted the anthocyanin pigments during processing. The factors are processing temperature and time (30°C, 60°C and 80°C for 10, 20 and 30 minutes each, respectively), storage conditions (room temperature, refrigerator temperature and freezing temperature), pH (2, 3, 4, 7 and 10), oxygen, influence of light, different extraction solvent (methanol, absolute ethanol, acidified ethanol (1%), and 50% KMS -Ethanol), sugar level (20%, 40%, and 60%). The intensity of the extracted colour was measured at wavelength 520 nm using UV-VIS spectrophotometer. The results can elucidate the increasing heating temperature and time, sugar content, and exposure to light is able to spoil the anthocyanin molecule. There was a proportional effect of pH and oxygen. The anthocyanin stability was found better in pH=10, acidified ethanol (1%) as extracting solvents, absence of light as processing condition and refrigeration temperature as storage temperature. Hence, these findings could be useful in the food industry to choose a proper processing condition for development of mango powders-based products for satisfying the consumer perception by retaining anthocyanin pigment.

This study aims to compare UV-C irradiation and conventional heat treatment to produce pasteurized onion juice used as a meat marinating agent. The process conditions maximizing the inactivation of target microorganism Escherichia coli K-12 were; 0.5 mm sample depth, 30 min irradiation, 7.5 mW/cm2 UV incident intensity for UV-C and, 74.5°C and 12 min for heat treatment. Except pH and non-enzymatic browning index, differences between physicochemical properties of raw, UV-C and heat-treated onion juices were significant. Springiness and chewiness of unmarinated beefsteaks were higher compared to the ones marinated with the fresh and pasteurized onion juice (UV-C and heat). Pasteurization of onion juice (UV-C and heat) did not significantly affect general liking scores compared to beefsteaks marinated in untreated onion juice.

İnsan sağlığı açısından başlıca hayvansal protein kaynaklarından olan kırmızı etin yeterli miktarda ve düzenli olarak tüketilmesi elzemdir. Türkiye’deki kişi başı kırmızı et tüketimi dünya ortalamasının oldukça altındadır. Bunun temel nedeni olarak sığır eti fiyatlarının yüksekliği ve sürekli bir artış eğiliminde olması gösterilmektedir. Ayrıca bu artış, enflasyon üzerinde de önemli baskı oluşturmaktadır. Bu çalışmanın amacı, sığır eti fiyatlarında izlenen artış eğiliminin enflasyon etkisinden arındırılarak üretici açısından değerlendirilmesi ve üretici düzeyinde et fiyatlarındaki artışa etki eden temel faktörlerin tespit edilerek, fiyatlarda istikrarın sağlanmasına yönelik çözüm önerileri geliştirilmesidir. Bu çerçevede, et fiyatlarındaki artışa neden olduğu düşünülen faktörler tespit edilmiş, girdi maliyetleri, ikame-rakip ürün fiyatları ve hayvancılık desteklerinin cari ve reel seyri analiz edilmiş ve sığır eti tüketici ve üretici fiyatları arasındaki ilişki düzeyi tespit edilmiştir. Analiz neticesinde sığır eti fiyatlarındaki artışın temel olarak, et üretiminin yetersiz olması nedeniyle oluşan talebin karşılanamamasından kaynaklandığı ve süt fiyatları ile sığır eti üretici fiyatları arasında kuvvetli bağlantı bulunduğu saptanmıştır. Buna göre, kırmızı et fiyatlarında istikrarın sağlanması için öncelikli olarak et üretiminin artırılması, buna yönelik olarak etçi tip besi hayvancılığının geliştirilmesi ve besi materyalinin yurtiçinde üretimi ile hayvan varlığının yeterli düzeye çıkarılması, pazarlama zincirinin kısaltılarak denetim altına alınması, hayvancılık politikalarının uzun vadeli ve planlı şekilde belirlenmesi ile et ve süt ilişkisi göz ardı edilmeden doğru ve etkin bir destek mekanizması oluşturulması gerekmektedir.

The widespread use of antibiotics often causes increase in the bacterial drugs resistance and causes many side effects in humans. Medical plants have antimicrobial effects against most pathogenic bacteria and can serve as harmless replacement to antibiotics. The aim of this study was to assess the antibacterial effect of five medicinal plant prevailed in Kurdistan region namely; Cinnamon (Cinnamomum cassia (L.) D.Don), Nigella (Nigella sativa L.), Allium (Allium hirtifolium Boiss.), Carrot (Daucus carota L.), and Fennel (Foeniculum vulgare Mill.) against pathogenic Gram positive bacteria (Staphylococcus aureus), and pathogenic Gram negative bacteria (Salmonella typhi and Escherichia coli). The evaluation of antibacterial activity for these plant extracts was carried out using agar-well diffusion method. Results showed that minimum inhibitory concentration (MIC) of A. hirtifolium against tested bacterial isolates were (25 mg/mL), the lowest MIC values for S. aureus were (25 mg/mL) observed with C. cassia, N. sativa and F. vulgare ethanolic extracts and the lowest MIC of D. carota against bacterial isolates were (50 mg/mL), Also, it was observed that S. aureus was more sensitive than S. typhi and E. coli to plant extracts. The ethanol plant extracts had potential antibacterial activities. However, further studies are required to identify the active compounds which could be used for the preparation of new antimicrobial agents and control the bacterial infectious diseases.