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Determination of fatty acid constituents and Macro-nutritional Properties of Some Lactarius Species Texte intégral
2016
Deniz Altuntaş | Hakan Allı | Erhan Kaplaner | Mehmet Öztürk
Human being have been consumed mushrooms due to their aroma and flavour. The macro-nutritional properties such as ash, protein fat, carbohydrate and energy and fatty acid ingredients of Lactarius deliciosus (L.) Gray, Lactarius deterrimus Gröger, Lactarius salmonicolor R. Heim & Leclair and Lactarius semisanguifluus R. Heim & Leclair were studied. The results indicate that the moisture was between in the range of 86.8-91.1%, while the ash 5.1-9.2%, and the protein 9.4-19.0%, and the fat 0.6-1.1%, and the carbohydrate 71.8-83.9, and the energy calculated between 372.1-382.6 kcal/100 g dry weights. The major fatty acids were determines as stearic acid, oleic acid, linoleic acid and palmitic acid in the range of 6.68-39.41%, 26.94-47.12%, 9.78-23.85% and 9.7-14.43% respectively.
Afficher plus [+] Moins [-]Conservation Characteristics and Nutritive Value of Sunflower Silages as Affected by The Maturity Stages and Fibrolytic Enzymes Texte intégral
2016
Sibel Erdoğan | Murat Demirel
Silage quality and nutritive value of sunflower silages ensiled with different level of fibrolytic enzymes at blooming, milk and dough stages were investigated. Fibrolytic enzyme complex (Viscozyme® L, V2010 Sigma Novozyme) was applied 0, 1, 1.5 and 2.5 ml/kgDM at ensiling. The dry matter (DM) yield increased with each increment of the maturity stage. Dry matter (DM), ether extract (EE) and crude cellulose (CC) contents of silages increased also in each delay in harvesting, while crude protein (CP), NDF and ADF contents of silages were the highest in blooming stage. The pH was higher in sunflower silage harvested at dough stage when compared to blooming stage, while acetic, propionic and butyric acid concentrations were all higher in blooming stage, although there were no differences in lactic acid concentrations among harvesting periods. Although silage structural carbohydrate composition was not significantly affected by any enzyme dose, Dose III enzyme treatment at the dough was associated with the highest concentration of lactic acid. Overall, there was no profound effect of enzyme supplementation on nutritive value and silage characteristics of sunflower silage.
Afficher plus [+] Moins [-]The Length-Weight, Length-Length Relationship and Condition Factor of Angora Loach, Oxynoemacheilus angorae (Steindachner, 1897) Inhabiting Kılıçözü Stream in Kızılırmak River Basin (Central Anatolia-Turkey) Texte intégral
2016
Okan Yazıcıoğlu | Ramazan Yazıcı
In this study, length-weight relationship (LWR), length- length relationship (LLR) and condition factor (K) of Angora loach, Oxynoemacheilus angorae were determined. A total of 103 specimens were sampled from Kılıçözü Stream in 2014. The length and weight of specimens were ranged 3.5-9.8 cm and 0.38-6.58 g, respectively. Length-weight relationships for female, male and all samples were found as W= 0.01056.TL2.896 (r²= 0.923), W= 0.00963.TL2.940 (r²= 0.978) and W= 0.00987.TL2.929 (r²= 0.963), respectively. LWRs indicated an isometric growth in female, male and all samples. The values of Fulton’s condition factor (K) ranged from 0.699 to 1.246 for females and from 0.654 to 1.072 for males. All length-length relationships were statistically significant.
Afficher plus [+] Moins [-]The biology, economy, hunting and legislation of edible Frogs (Ranidae) Intended for Export in Turkey Texte intégral
2016
Hülya Şereflişan | Ahmet Alkaya
The frogs production is done on the basis of fully hunting, an important export product in Turkey. The frogs are almost no domestic consumption. The frogs are exported to France, Italy, Switzerland, Lebanon, Greece and Spain by five companies a processed form as live frog, frozen frog legs and chilled frog legs. In Turkey, some regulations related to hunting frogs and exports are prepared by under the Ministry of Agriculture and Rural Affairs General Directorate of Protection and Control. The hunting frogs is banned by 3/1 the Commercial Fisheries regulating the hunting notification. These prohibitions are designed to be different for each province. The provinces are permitted for frogs hunting by the legislation in Adana, Afyonkarahisar, Balıkesir, Bingöl, Bursa, Edirne, Bursa, Istanbul and Yalova. Frogs were exported in different amounts (kg) with different price in every year during the last ten years. The highest amounts of the frogs with the lowest of price were exported in 2013. Prey weight is shrinking due to overfishing. In this case, the price of export materials has got significantly negative effects. As a result, the ban on hunting and restrictive measures for protection should be taken seriously in some of the provinces. Hunting ban is absolutely necessary in Turkey. In many countries including Turkey, in order to ensure sustainability, it is important to do the frog breeding.
Afficher plus [+] Moins [-]Effect of Different Processing Methods on Anti-Nutrients Content and Protein Quality of Improved Lupin (Lupinus Albus L.) Cultivar Seeds Texte intégral
2016
Mohamed Ahmed M. Omer | ElShazali Ahmed Mohamed | Isam A. Mohamed Ahmed | Abu ElGasim A. Yagoub | Elfadil E. Babiker
Lupin seeds of genetically improved cultivar (Golo) were subjected to different processing methods and investigated according to anti-nutritional factors content and protein quality. Results showed that tannin content of raw seeds was significantly increased in sprouted and debittered seeds before and after boiling but in fermented seeds it declined significantly. Phytate content was significantly decreased in all processed seeds with a significant reduction observed in germinated seeds. The reduction in Phytate as a result of processing was accompanied by a significant improvement in protein digestibility. The protein content of lupin seeds decreased in sprouted seeds and increased in fermented and debittered ones. Boiling of the seeds even the sprouted ones significantly increased the protein content compared to raw lupin seeds. In raw lupin seeds, globulins comprised the major fraction followed by glutelin. Debittered seeds characterized by high glutelin, fermented are characterized by high globulin while germinated characterized by both fractions. Most of the amino acids level was increased after processing of the seeds.
Afficher plus [+] Moins [-]Effects of Different Forms and Doses of Sulphur Application on Wheat Texte intégral
2016
Halil Erdem | Mustafa Bülent Torun | Nazife Erdem | Atilla Yazıcı | İnci Tolay | Elif Günal | Faruk Özkutlu
Deficiency of sulphur (S) is an important limiting factor of plant growth for sustainable agricultural production. The decline in sulphur dioxide emission, decrease in S-containing fertilizer consumption due to the high cost of S-fertilizers, breeding of new high yielding species are the well known causes of S-deficiency. A greenhouse experiment was conducted to investigate the effects of several doses of K2SO4-S, CaSO4-S and elemental-S applied on growth, shoot dry matter yield, S and N concentrations of wheat cultivar. The experiments were conducted in three soils differed from available S concentrations. Effects of different S-treatments (0, 25, 50 and 100 mg S kg-1) and S-forms had significant effects on shoot dry matter yields of plants. Sulphur from different S-sources did not increase shoot S-concentrations in Eskisehir and Konya soils, but increase was significant obtained in the Harran soil. Shoot S-concentration in Harran soil for zero K2SO4 treatment was 0.09%, the values were 0.22, 0.26 and 0.27% respectively for 25, 50 and 100 mg kg-1 treatments. The results indicated significant effects of S-treatments on plant growth and yield mostly based on soil properties, especially the available S-levels
Afficher plus [+] Moins [-]Wooden Breast Problem in Broiler Chickens Texte intégral
2016
Ahmet Tekeli | Akif Özcan | Hasan Rüştü Kutlu
The present study is designed to attract attention to macroscobic and microscobic findings, causes and economic losses of wooden breast which is a significant muscle problem leading to visual and sensory differences in poultry breast meat quality. Wooden Breast is a crucial problem in poultry industry. It has started to seriously affect poultry production in European and other countries, and especially in United States of America. Woody breast formation is a situation characterized with completely hardened breast fillet or with swelling easily understood when touched. Surface of the fillet contains exudate with petechial bleeding or non-bleeding viscous gelatine. Woody structure called “wooden” can occur not only in breast meat but also in legs. Growth rate, gender, energy level of the feed, amino acid level, and selenium supplement are the factors affecting wooden breast-woody breast meat formation. Shaded colour, surface leak and abnormally hard tissue are seen in macroscopic image of woody breast. In microscopic findings, muscle fibers are less and round. Lesions don’t contain pathogenic micro-organisms, they are aseptic. Colour of the meat of woody breast is brighter and whiter, and (L* value) This muscle problem affects muscles visually and sensorial; but it doesn’t have a negative effect on human health. The more white lines and woody structure in breast meat, the less they are accepted among European consumers.
Afficher plus [+] Moins [-]Yield, Quality and Water Use Efficiencies of Silage Maize as Effected by Deficit Irrigation Treatments Texte intégral
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.
Afficher plus [+] Moins [-]Impact of Technology on Smallholder Wheat Production in Bale Highlands of Ethiopia: Application of Output Decomposition Model Texte intégral
2016
Mengistu Ketema | Belay Kassa
In Ethiopia, the national agricultural research system has been generating and disseminating different agricultural technologies since its establishment in 1966. Although these technologies are meant to increase agricultural productivity, they have to be evaluated for their impact on production and for the benefit that the farmers get out of them. Hence, the main objectives of this study were to examine the impact of technological innovations on wheat production and to decompose the total change in wheat output resulting from the introduction of new technologies into its constituent parts. Cobb-Douglas production function was employed to estimate the regression coefficients under old variety growers, new variety growers, and pooled data cases. Output decomposition model was applied to decompose the total change in output into its constituent parts. The econometric results of this study indicated that, out of 55% of the observed productivity difference between old and new variety grown plots, technological change and change in associated input levels contributed about 24% and 31%, respectively. Of the 31% increment attributed to input use levels, an increased use of herbicides and fertilizers caused the biggest jump in the productivity of improved wheat varieties (15.5% and 11% respectively). The major implications included the need to exploit the full potential of new varieties using recommended input levels, strengthening the research system, fostering coordinated efforts among various actors in agricultural development, and strengthening the technology instrument in rural development and poverty reduction strategies of the country.
Afficher plus [+] Moins [-]Effect of Modified Pre-Milking Sanitizing Approaches on Raw Milk Quality Obtained from the Dairy Farmers of Tawau Area, Sabah Texte intégral
2016
Sim Kheng Yuen | Mohammad Raisul Alam
The aim of the study was to investigate the raw milk hygiene and quality among the small holder dairy farmers in Tawau area. A total of 216 samples were collected from the respective dairy farmers and milk collecting centre located at Mile 15, Tawau. Preliminary results indicated that the quality of the raw milks obtained at farm level contained were inferior with high bacteria load (> than 107 CFU/ml). The total coliform (2.9-3.8 CFU/mL) and Staphylococcus count (2.3-3.6 CFU/mL) were relatively high in certain samples. However, none of the food borne pathogens was found. Trace back study revealed that the causes of contamination were attributed by poor hygienic handling among the dairy farmers and insufficient for immediate chilling of raw milk. A significant reduction in bacteria load was observed if the raw milk chilled immediately at farm. The implementation of modified pre-milking sanitizing practices improved the microbiology quality of the raw milks obtained from respective dairy farms. Future study will focus more on the effect of prolong storage towards the microbiological quality of raw milk.
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