Refine search
Results 111-120 of 239
A Current Approach in Animal Breeding: CRISPR/Cas9 Genome Modification System Full text
2016
Fatih Bilgi | Zeynep Demirtaş | Levent Mercan
Genome modifications include potential about providing significant advantages on increasing yield performance and developing resistance to diseases. Gene editing methods that provides silencing or expressing of a gene which is an individual already has, have important potential for improving genetic structure without environmental effects. In recent times, new gene editing systems were developed. These are ZFNs (Zinc Finger Nucleases), TALENs (Transcription Activator-like Effector Nucleases) and CRISPR/Cas nuclease systems. CRISPR/Cas system is a microbial immune system that uses RNA guided nucleases for destroying genetic materials and its potential usage like a simple and efficient gene editing mechanism in animals is being evaluated recently. In this review, we summarized CRISPR/Cas9 system and its usability in animal breeding
Show more [+] Less [-]Effect of Some Egg Quality Traits on Hatching Results in Brown Pure Lines Full text
2016
İsmail Durmuş | Serdar Kamanlı | Sezai Alkan
This study was conducted to determine the influence of eggshell thickness, albumen height, yolk height and haugh unit on hatching results. A total of 746 eggs, which were obtained and evaluated for egg quality parameters from 100 brown pure line hens of 42 weeks of age, were used. Eggs were collected from each hen for 12 days and individual incubation was carried out. Eggs were grouped based on quality parameters and evaluated accordingly. The findings suggested that hatchability, hatchability of fertile eggs, early, mid and late embryonic mortality did not differ in terms of haugh unit, albumen height, eggshell thickness and yolk height groups. However, early embryonic mortality was found different between the yolk height groups. No relationship was determined among albumen height, haugh unit, eggshell thickness and hatching results. There was no relation between yolk height and hatchability of fertile eggs, hatchability, mid and late embryonic mortalities but was a positive correlation with early embryonic mortality. The results of the present study demonstrate that egg quality parameters studied here had no influence on hatching results except that early embryonic mortality increased with the yolk height.
Show more [+] Less [-]Determining the Factors Affecting Farmers’ Decision on Organic Livestock Full text
2016
Nuray Demir | Canan Sancar | Okan Demir | Vecihi Aksakal | Adem Aksoy
In this study, the objective was to determine the factors affecting farmers’ decisions on organic livestock. Within this scope, the Gümüşhane province, in which one of the major organic livestock projects has been carried out, was taken into the focus of attention for this study. The data of the study was obtained from 134 surveys based on census and focusing on farmers doing conventional animal breeding and possessing 25 or more cattle. The data obtained were used in predicting the Logit Model. In the model, it was determined that the inclination to transition to organic animal breeding in institutions where the rate of benefiting from animal breeding supports and the rate of meeting forage requirements from their own are high and besides where the rate of using industrial feed is low. As a result, it was recommended that the government support for forage crops, which are already within the current support policies, should be increased on yearly basis. This will have a positive effect on the decision of the farmers to choose organic livestock. This support is also important in terms of carrying out livestock activities in more profitable and technical way.
Show more [+] Less [-]Determining Cotton Production Techniques and Input Uses in Agricultural Farms: The Case of Antalya Province Full text
2016
Şerife Gülden Yılmaz | Mevlüt Gül
This study was aimed to examine the cotton production techniques and determined of input use in the cotton production. The primary data used in research was obtained from 94 cotton-growing farms by surveying method in the Antalya province. The data belonged to 2011 production period. In the research area 95.74% of agricultural farms made conventional farming. It was determined that cotton seed was used 2.43 kg per decares and 27.7% of farmers had soil analysis and 24.5% of them applied fertilizer according to the analyses. It was determined that the average fertilizer applications per decares were 24.9 kg nitrogen, 17.2 kg phosphorus, 8.2 kg potassium and 0.5 kg sulfur fertilizer. It was calculated that the average number of plant spraying 5.4, the number of irrigation 4.53 in the cotton cultivation. The application level of water-saving irrigation techniques of farmers was low(2.12% of farmers used drip and sprinkler irrigation system). Labor force was used as 53.95 hours and machine was calculated as 3.06 hours per decares. Mechanization of the cotton harvest increased. It was determined that 47.87% of farmers did not receive consultancy services; 22.34% of farmers were knowledgeable about the concept of integrated pest management and 41.5% of farmers were knowledgeable about good agricultural practices in the region. In order to increase the production of cotton in the region; new varieties which will be compatible to the region, higher levels of yield, resistant to disease and pests should be developed and farmers should be informed about technical applications by extension personnel.
Show more [+] Less [-]Identification of the Infested Gray Mullets (Mugil cephalus L. 1758) by Myxobolus ichkeulensis Level in the Coast of Adana Full text
2016
İbrahim Demirkale | İbrahim Cengizler
Myxobolus ichkeulensis is one of the species fish parasites within the class Myxozoa that infests the gill filaments of grey mullet (Mugil cephalus). M. ichkeulensis infestation rates vary depending on environmental conditions and seasonal variations. In this research, seasonal infestation ratio of M. ichkeluensis on Grey Mullets living in 4 different environmental conditions, were determined. To accomplish this aim, 25 Grey Mullet individuals were captured monthly from 4 different stations (Karataş Port, Hurma Boğazı Lagoon, Çamlık Lagoon and Yumurtalık Port) within the coastal region of Adana province. In addition, relation between infestation ratio and the following parameters: fish size (length and weight); season and salinity were investigated. Our results revealed that, 109 fish infested out of 1200 fishes (%9.08) by M. ichkeulensis; Highest infestation level (%35.8) was recorded in summer months (July-September) interval. Parasitic cyct settlement on the gill arches was determined to be with the highest rate (48.2%) on the fist arc. The highest infestation level (21%) was recorded in Grey Mullets captured from Yumurtalık Port in comparison to other stations studied.
Show more [+] Less [-]The Determination of Socio-Economic Structure and Problems of Control Officers in Istanbul Full text
2016
Faruk Aıgüzel | Nuray Kızılaslan
The aim of this study is to determine socio-economic properties and problems of the control officers in Istanbul province. The data are obtained via the questionnaire method from 99 control officers in the period of August-October 2015. As method, it is used to frequency, percent distributions and averages for personal and professional characteristics, opinions about related laws and categorized problems of control officers. Also, it is analyzed the relationship between sufficient and effective of official checking and some characteristics of control officers with Chi-square test (X2). It is determine that 58.59% of control officer are men and their averaged ages are 35.09. The people have been worked in the Ministry for 8.59 years and are control officers for 5.90 years in average. The majority of the people (91.92%) have been got trained in-service, and HACCP basic training is the most participated issue (85.86%). Although 64.65% of the people are satisfied with their jobs, the ratio of the people who consider with sufficient and effective of official checking is very low (27.27%) and 38.38% of the people stated that feel coercion with applying administrative sanction. The most important categorized problems of control officers are amendments frequently in legislation (74.75%), insufficient teams/officers in official controls (70.71%), lack of own directorate buildings in physical structure and equipment (36.36%) and insufficient payments in other job problem (59.60%). It is determined with chi-square test that there were significant relationships between the sufficiency and effectiveness of official controls and homeland of persons, job satisfaction, sufficiency in providing food safety of 5996 numbered law, feeling coercion applying administrative sanction. Solution of control officers’ problems and periodically training in food safety aspects could provide the contributions in food safety.
Show more [+] Less [-]Determining the Sediment Quality of Yağlıdere Stream (Giresun) Full text
2016
Arzu Aydın Uncumusaoğlu | Cengiz Mutlu | İlhami Kayış
Sediments in aquatic systems are often contaminated by various pollutants originating from the sources such as industrial and agricultural discharges, municipal wastewater treatment plants, and storm water. These effects lead to the need to develop sediment quality objectives regarding the protection of aquatic ecosystems and human health. In this study, the sediment samples were collected from five sampling sites and then analyzed in order to identify the concentrations of certain metals (As, Se, Ag, Cd, Na, and K), the levels of pH, conductivity, water content (%) and organic matter (%) in the Yağlıdere Stream. Finally, Geo-accumulation index values calculated based on the estimations regarding the background trace element concentrations suggested the anthropogenic influences in most of the samples. In conclusion, it was observed that K, Na, As, and Se dominantly accumulated in the study area. These metals may have a negative impact on the research area and create an environmental risk.
Show more [+] Less [-]Investigation of Fish Consumption in Giresun City Full text
2016
Mustafa Türkmen | Aysun Türkmen | Köksal Duran
This study aimed to investigate the fish consumption in Giresun by survey method. Fish meat was compared with other meat types according to education, level of income, consumption rate and quantity. In research carried out according to the random sampling method. Questions were asked face to face a total of 433 persons. A total 428 participants (98.9%) stated that they consumed fish. However, the most consumed meat type is chicken, second is fish. A total 91% participant preferred marine fish. The most consumed fish species is anchovy with 34%. Fish consumption per person in Giresun is above Turkey’s average with 12.34 kg/year.
Show more [+] Less [-]Efficiency of Different Nitrogen Forms in Buckwheat (Fagopyrum esculentum Moench) Full text
2016
Burhan Kara | Fatoş Güllü Çelebi | Nimet Kara | Bekir Atar
The research was carried out with aim to determination the efficient of nitrogen forms (ammonium sulfate, ammonium nitrate and urea) on nitrogen use efficient for buckwheat in Isparta during 2014 and 2015 years. All the examined characteristics were determined higher values in applied nitrogen forms according to non-nitrogen parcel. In compared to nitrogen forms, the highest grain yield (1456 and 1325 kg ha-1), biological yield (4873 and 4512 kg ha-1), 1000 grain weight (24.9 and 24.8 g), agronomic efficient (24.96% and 24.25%), recycling efficient (0.24% and 0.22%) and utilization efficient (0.25% and 0.18%) were obtained from ammonium sulfate, the highest protein content (11.37% and 12.44%) and agro-physiological efficient (0.27% and 0.24%) from ammonium nitrate in both years. Among the nitrogen forms weren’t significant differently in physiological efficient in both years, recycling and utilization efficient in the first year. The mineral nutrient content varied according to nitrogen forms. Generally, ammonium sulfate was positive effect to yield and some quality parameters.
Show more [+] Less [-]Effect of Calcium Chloride Treatments on Quality Characteristics of Blackberry, Raspberry and Strawberry Fruits After Cold Storage Full text
2016
Tamar Turmanidze | Levan Gulua | Merab Jgenti | Louise Wicker
Post-harvested blackberry, raspberry and strawberry fruits were immediately treated with 1% and 2% calcium chloride by immersion at 20 ± 1°C for 2.5 min and kept for 8 days at 0 ± 0.5°C and relative humidity (RH) 90 ± 5%. The application of calcium did not significantly effect on total titratable acidity, pH and total soluble solids. Maximum weight lost was observed for untreated berries and minimum lost was observed for fruits treated with 2% calcium chloride. After storage, ascorbic acid content was significantly higher in samples of blackberry, raspberry and strawberry fruits subjected to 2% calcium chloride dip. Treatment of blackberry, raspberry and strawberry fruits with calcium chloride had a positive effect on retention of total polyphenols content during the storage period. Depletion of antioxidant capacity of untreated fresh blackberry fruits during 8 days cold storage was 25%; raspberries and strawberries - 34 and 26 % respectively. Whereas depletion of antioxidant activity in the 2% calcium chloride treated samples of these fruits was 8, 22 and 11% respectively. In case of storage of untreated blackberry fruits content of cyanidin-3-O-monoglucoside decreased by 6.33 mg per 100 g of fruit. While, in fruit samples treated with 1 and 2% calcium chloride content of cyanidin-3-O-monoglucoside decreased by 32.06 and 11.35 mg per 100 g of fruit, respectively. Content of pelargonidin 3–O- monoglucoside increased by 2.29 mg per 100 g of the untreated blackberry fruits and by 26.87 and 8.45 mg per 100 g of fruits treated with 1 and 2% calcium chloride respectively. Change of content of cyanidin 3–O- (6 - p – coumaroyl - glucoside) in blackberry fruits was not statistically significant.
Show more [+] Less [-]